SCIENTIFIC ABSTRACT DAVTYAN, N.A. - DAVTYAN, O.K.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000509810019-8
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: January 3, 2017
• Document Release Date: July 28, 2000
• Sequence Number: 19
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

DAVTYAN, N. A.
Chemical composition of the fuel oils in Romashkino Region
petroleum. Trudy IGI 17:22C~.234 162. (MIRA 15210)
(Petroleum its fuel)

D'YAKOVA, M.K.; DAVTYAN, N.A.; MAROVA, M.N.; AVfLWNKO, V.I.; KARAhDAS11'VA,V.M.
Obtaining solvents from naphthalene-containing industrial oils. Koks
i khim. no.10:.40-43 162. (MIRA 16:9)
1. Inatitut goryuchikh iskopayamykh AN SSSR.
(Coke industry"-By-products) (Solvents)

DAVTYAN,.JJ.A.; VASILIYEV, S.F.
Investigating the liquid produots of the oxidation pyr*Tysis of
low-octane gasoline. Nefteper, i neftekhim. no.7:27-29 164.
(MIRA 17-.11)
1. Institut goryuchikh Iskopaysmykh AN SSSR.

YULINJ, M.K.; VOV-EPSHTE-1N, A.B.; DAVTYAN, N.A.; LISYUTKINA, L.N.
--z- .... . .....I
Investigating the composition of the products of the alkylation of
phenol with isobutyl alcohol and isobutene. Neftekhimiia 4 no.5:717-
721 s-0 164. (MIRA 18:1)
1. Institut goryuchikh iskopayeqrkh AN SSSR..

DAVTYAN, N.K. _
Functional state of the adrenal cortex in the early stages of
Iexperimental silicouiss Probl. enftok# i gorm* 6 n'o* 1:26-32
Ja-F 160, (MIRA 14:1)
(ADRENAL CORTEX) (LUNGS--DUST DISEASES)

DAVTrAN,, N.K.
Characteristics of the 31polytic activity of fatty tissue. Biul.
ekep.bdLol.i mod. 54- no.n-s6,Ua N 1612. (MIRA 15.-12)
1. Iz kafedryipatologicheskoy fiziologii (zav. - prof. SA
Leytes) TSentrallnogo institute, usovershenstvovaniya vrachey
(dir. - M.D.Kowrigini), Moskva. Predstavlena deystvitellnym
chlenom, AMN SSSR A.V.Lebedinskim.
(ADIPOSE TISSUES) (LIPOLYSIS)

JX
i A', T YPT , Y, K.
i --
.I~polytlc act lvi-Ly, of adlro--a tisssue in a-K~eriierital alloxan
diabete,B. Bbol. eksp. bizl. i med. 55 I/i.e. 56/ no.10-029-32
0'63 WTRA 17-.8)
1. Tz kafedwy ( - prof. 8.M.
.eytes) V.1entrallnogo flnstituca usovershmsbrovanivia vnicley,
LI'loskvao Fredstuvlen,.i doystvitolinym chlenom PMN `~SFIR T.V. Parinym.

DAMAN, N.K. (10skva)
Lipopytic activity of fatty tissues in relation to their absorption
of glucose following thp direct action of some hormone factors.
Ptobl. endok. I gorm. 9 io.6:33-38 N-D 163.
(14W 17: 11)
1. Iz kafedry patologicheskoy fiziologii (zav. - prof. S.M. Leytes)
TSentrallnogo instAtuta usovershGnst,vovaniy-- vrachey.

DAV TY 14
E`~fac-'% of jorv) ix;raional factorn on tho Lipolytfn aotlvi~',y Of
-1
the adipc)se and on the aeran !onten', of noy-eater-If"ed
Urea) higher acids undLr normal nonJitions and in
L
djabe+le-~, llrobl. endok. `~. I-orm. *10 no./+984-89 J3,.Ag 164.
oaf,:dra pa~~;ol~g.Izhejskoy fizlologE, (zw;._ prcf. -P.M. Le. to c,"
'San`~-Irallnogf) Instituta usoverethenstrovanflyu vrachey, Mozkva.

! LEI TFS, S.T4.;_DArIYAN,_N. K,_,
Effect of the absorptloq~of glucose ty adipose tinsue on Its lipolytic
activity under the influence of some hormones and experimental
diabetes. Vop.med.khim. 11 no.5t49-54 S-0 165. (MIRA 19-1)
0
1. Kafedra patologichaskoy fiziologii. TSentrallnogo instituta
usovershenstvovaniya vrachey, Moskva. Subirdtted May 6.. 1964.

BABAYAN9 A.T.; INDZIIIKYANp M.G.; DAVTYAN N M,
z=="&z=w.4w
Alkaline cleavage of 1.2-diquaternary ammonium salts. Dokl, AN Arm*
SSR 35 no.4:173-176 162, (MIRA .17:1)
1. Institut organicheskoy khimii AN Aa-myanskoy SSR. 2. Chlen-korrespon-
dent AN Annyanskoy SSR (for Babayan),

BABAYAN, A.T.1 INDZHIKYAN, M.G.; BAGDASARYAN, G.B.; DAVTY
Aminea and ammonium cokpounds. Part 22s Rearrangement-oleavage of
ammonium salts containing -ohl6roetbvl and`allyl-ty~*Ir,.Rups taking
place under the effect ofAqueous alkali. Zfiuriob.*khiz.-34 no.23416-
421 F 164. OIIRA 170)
1. Institut organicheskoy khimii, AN ArmSSR.

BABAYAN, A.T.; MARTIROSYAN, G.T.; 1111)ZHIKYAN, M.G.; PAYTYAN., N.141.
MINARAN, R.B.
Chemism of the mineralization process of organically combined
chlorine in the PIkaline, cleavage of quaternary airaionium salts.
Dckl. AN Arm. SER 39 no. 2-99-106 t64. (MIRA 17:9)
1. Oblen-horrespondent AN ArmSSR (for Babayan).

DAVTYAN, 0. [Davtian, 0. J., Prof.
I .--- ~` - -.. ...
ctrochemical power engineering. Nauka i zbyttia 12 no.3:26-29
Yx 163. (MM 16:1-1)

1. PANCHENICOV, G.M., DAVTYAN, 0. K.
2. USSR (600)
"Research on the Dielectric Losses of the Mixtures Nitrobenzene-
Benzene and Ethyl Alcohol-Benzene," Zhur. Fiz. Kh1m., 13, No. 5,
1939. Yoscovi, Petroleum Institute imeni Acad 1. 141. Gubkin, Lab
of Physical and Colloidal Cherustry. Received 22 june 1938.
9. 1WReport 11-1613, 3 Jan 1952.

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sci.kirh. 190. IM.14.-A tio.o(mixtr. were studied
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the tviod. of Vie specituens was practically xcro. As the
temp, lacreastil (tesups. studied up to 12110') the mid. S,
to
row rapictly. These two facts point to Ionic coed. The go*
relation between temp. Lnd cond. can be expm-d by 0
a - Ar O/r where ir is sp. cond. and A and B are ccni.L4.
The results Chen by various mixrs are tabulatcj. see
age
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G. M. l,rvhi7,ha?iovFkiy z-n,.-rj7y Inst., icad. Sri. USSR (
"i)iffusion i?roccsses in real solutions of lectrolytes."
Iz. Ak. Nauk, Cjtdel Tekh. Nauk, '~'o- 4, 1946

Ai
W, 0.
sit, (-1946-)
4. Krzhizhanovskly 1~,ncr&y lhst-, -'tcad. Sci. SS
ll~hu, DMusion Potailtial. ol' tical Soltit.jolis of
j
Zhur. Fiz. Khiri., o. 7, 1946.

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N 0. K.
e~tM/Ch"jaistry -4160trolytea
Chmistry - Electrochemistry
Pk 18T75
Jun 1946
"The Diffusion of Electrolytes, 0. K. Davtyan, 8 pp,
"Zhur Fiz IhW Vol XII No 6
X Cl and Nadi were used as the electrolytes. Graphs
and tables of results &company the article. The
theoretical dependence of the real solirtion of
electrolyte on the concentration of the electz-olyte
areas in investigated,
1M5

t
-~A a w 4 at a U as
! M1,
PnAik-in of Lhim Ttanikinualion of Clu-muAl Eurrav
of Fuel Into FlAxitical vnclrp~.) 0. X. all,
fiv%ims flicurt-tical Imsm III Use fuel denteut, ple, -00
0.1 wntinic therutudyliatuic calculations of free ructgy Sto 0
furvo at Ilimt-tent.
the P1.1-tTwIveout-Al vrll% ll.-O., C.O., aull ('00. =00
0 11- IMM, III 11w-W %'A 1161unn, vilk iew v
900 "."" "I ("e' efellk'111- fullill-Al Itutu %uth 44,16 it
.09 41111viellf trull"'latI141% are deth-vd.
llotts intlicalvIcible wavs it) (It'veloil 11TAltiral flu'l
Ow Villuvillts. for ired of (INII a
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rR=INA, N.M.; SHIROKOV, I.A.;. 3AVMUN. O-K.
Concerning tho papers by O.K.Daytian on the dielectric permeability and
conductivity of electrolytes. Zhur.eicap. i teor.fiz. 17 no.4:)75-376
147. . I (XLRL 6.-7)
(Electrolytes--Conductivity) (Davtian, O.X.)

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/*
USSR/Kinetics - Combustion. Explosions. Topochemistry. Catalysis.
Abs Jour : Referat Zhur - Khimiyaj, No 6., 1957Y 18631
Author : Ye.N. Ovehimikova. O.K. Davtyan.
Title : Oxidation of Sulfur' Dioxide og_Xc~tivated Carbon by
Liquid Contact Method.
Orig Pub : Zh. fiz. khimii, 1956, 30, No 8, 1735-1738
B-9
Abstract : It is shown that oxidation of S02 takes place on the sur-
face of activated carbon (I) at the adsorption of the mix-
ture SO 0 as well as of S02 alone at indoor tempera-
ture an~ tha?'the oxidation product can be vashed off ..
from the catalyst surface vith water as H~S04 (so-called
liquid contact method) (RZhnim, 1956, 32026). The super-
ficial oxidized product dissociates at temperatures above
220c liberating S02 in gaseous phase. The amount of oxi-
dized SO rises together with the moisture in carbon up -
to a li2t (0-25 9 Of H2SO4 per 1 g of carbon). The oxi-
dation degree increases sharply, if I adsorbed 02 and H20
Card 1/2 - 268 -
USSR/Kinetics - Combustion. Explosions. Topochemistry. Catalysis. B-9
Abs jour Referat Zhur - Rhimiya, No 6, 1957, 18631
simultaneously. It is assumed that in absence of H20,
oxidatioij proceeds at the expense of superficial oxides
on I. The speed of the liquid-contact, formation of
H2SO4 on I drops with the rise of concentration and, in
case of a Sao mixture of 24 Of S02 and 80% of air., the
formation discontinues at " of H2SO4 in the liquid
phasey which is explained by diffusion difficulties,
The initial speed of acid formation is proportional to
the square root from the product of the partial. pressu-
res of S02 and 02.
Card 2/2 - 269

15-57-5-661:9
A Study of the Adsorption Properties of the Brown-Green Clays (Cont.)
clays,were actblated.'fdr two hours in 30 percent sulfuric acid or in ten
percent hydrochloric acid. On testing with sunflower oil this
material gives a discoloration factor 20 percent greater than that
for the Zikeyevskiy tripoli. These results confirm the suitability
of using the Odessa brown-green clays for purifying vegetable oils,
Card 2/2 S. P. 311.

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f th
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e
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ideal cav-1do stpn. of bhwy --WAB. "Itmis uIrdelic
.11 the thofit~ if the vpu. d Uiftary=l by ajiy pbys
lu tht ifital 4-Asettle tkpu. the n" mm-(
'
1
jzk
%tC wfm)d
pfocctql it poillt3 ic WK6 tile --nf"ly .
Tilt FrIallun -tmtwtpm the tAmirl up-d the ldf~:l
Crjual Ninlirm 4 the
wo-% ir, -parAtrln ~it-rt ti'.:' ' r!
-rrt
4r JtV.5 o, natuia &dum~m jpou the c- Iatio. 11,
firny -WhIc". a--l-,
!vt
.41,~ -'4~hr IM7
4~i Ind. 44 ~.Z.4

BTJRSH7A"YN, SI.I.; DAVTYAIT, G.K.; TIKHDNM. R.Y.
Studying adeorptive capacity of Odessa brown-green clays.
Bent. gliny Ukr. Do.2:128-135 .'58- . - (NIRA 12:12)
l.Odesakiy gosudarstTennyy UniTersitet.
(Odessa Province--Clay) (Adsorption)

AUTHOR: Day, 76-32-4-34/43
Iyan, 0. K.
TITLEs The Elaboration of a New Method of Leak Detection in Vacuum
Systems and in High-Pressure ApparatuI3 (Razrabotka novogo
metoda obnaruzheniya techi v vakuumny1ch sistemakh i v appa-
raturakh vysokogo davleniya)
PERIODICAL: Zhurnal Fizicheskoy Xhimii, 1958, Vol. 32, Nr 4, pp. 935-
-936 (USSR)
ABSTRACTs The principle of the present method consists of the fact that
the hydrogen used as test gas is oxidized on a palladium ca-
talyst with oxygen and that the temperature rise is either
recorded by ignition, or by measuring with thermocouples. Be-
sides hydrpgen also other compounds e.g. vapors of organic,
low boiling compounds can be used. For the determination of
leakages also,a socalled indicator lamp can be constructed
which in principle consists of a glass bulb with a platinum
or palladium spiral. The platinum spiral has a diameter of
o. 1 mm and a length of from 5-10 cm and the oxidation of
hydrogen is energetically carried out at a pressure above lo-3
Card 1/2 torr, with the temperature of the wire strongly riskq from

The Elaboration of a New Method of Leak Detection in 76-32-4-34/43
Vacuum Systems and in High-Pressure Apparatus
450 to 80000. In vacuum determinations a thermocouple is used
in the indicator lamp, this is however, only rarely necessary.
The lamp practically operates without inertia. There are 6
references, 1 of which is Sbviet.
ASSOCIATION: Odesskiy gosudarstvennyy universitet (Odessa State University)
SUBMITTED: June lo, 1957
AVAILABLE: Library of Congress
1. Vacuum apparatus--Leak detection..' 2. High pressure apparatus
--Leak detection 3. Hydrogen--Applications 4. Explosim~ters
--Design
Card 2/2

OMTTAN, O.K.: BURSBTUN, S.I.
--
Adsorptive capacities of Odessa green clays and prospecto
for their Industrial use. Bent.glirV Ukr. no-3:149-157
159. (MRA 12:12)
1. Odsmakiy osudaretveuW universitete
10densa Provlnce--Glav)

5 (4) S/076/60/034/01/018/044
AUTHORt Daytyan, 0. K. BOO8/BO14
TITLE: Application of the Group Theory in Quantum Chemistry
I. Simplification of the Method of the Group Theory
PERIODICAL; Zhurnal fiziaheskoy khimii, 1960, Vol 34, Nr 1, pp 108-116
(USSR)
ABSTRACT: In this article it is shown that it is theoretically possible
to simplify the method of the group theory without reducing
accuracy. Two methodslused to symmetrize the initial eigen-
function are discusseds one method makes use of the matrix
properties, and the other is based on similarity transfor-
mation. The essential features of the principle underlying
the simplification of the group-theory method are the follow-
ing: 1 The incomplete eigenfunction of the general system is
invariant in its ground state with respect to transformations
by operations of the symmetry groups of the respective mole-
cule. 2) The quantum-mechanical electron-density distribution
in the closed molecule shells has the same symmetry as the
field of the core of the nucleus- 3) The best molecular orbit
Card 1/3 ?1 which is a linear combination of atomic orbits, can only

Application of the Group Theory in Quantum S/076/60/0N/01/018/044
Chemistry. I. Simplification of the Method of the B008/BO14
Group Theory
be real. 4) As the symmetry of the nuclear field is invariant
with respect to transformation operations of the symmetry
groups of the respective molecule, also,the square of the
molecular orbittyi2must be invariant. On performing symmetry-
group operations on the molecule under consideration, the
above principles allow to obtain all possible identical ex-
pressiona of the initial variation function. With the aid of
these identities all possible equalities of the variation-
function coefficients are determined, This leads in all cases
to a decrease in th e secular determinant. In many oases one
obtains the same results by simplification of the secular
equation as by the application of the ordinary group-theory
method. To illustrate, the author calenlates the energy of the
six mobile electrons of the benzene molecule both by the
localized electron pair and the molecular-orbital methods
In both cases, the data obtained and the degree of simpliii-
cation of the secular equation do not differ from those re-
sulting from the application of the ordinary group-theory
Card 2/3 method. The method suggested here does not fully replace the

Application of the Group Theory in Quantum S/076/60/034/01/018/044
Chemistry. I. Simplification of the Method of the BOOB/BO14
Group Theory
important group-theory method. It can lie used only as one of
the applications of this method. There are 4 references, 2 of
which are Soviet.
ASSOCIATIONt Odeeskiy goeudaretvannyy universitet ita. I.-I. Mechnikova 11_x
(Odessa State University imeni I. I. Mechnikov)
SUBMITTEDs April 17, 1958
Card 3/3

DAVTYAN, O.K. (Odessa)
Application of group theory quantum chemistz7. Part 2: Examples
of problems solved by a simplified group theory method.
Zhur. fiz. kbim. 34 n-).2:295-305 F 160. (MIRk 14-.'?)
1. Odesskiy gosudarstvennvv universitet im. I.I.]4echnik-jva.
(Quantum theory) (Groups, Theory of)

D.'VTYAN, O.Y.; B..4.; --,r,.
Temperatur-.4 doperdeme of .h-j rate of foi-mution of mulf1jr-Iti
acld iq t1llf) catalyti?i cx4datlini tf sultu dicudde on activated
coal by the Equid-contact zcthod. Nauch. ezhegod. KhLni. fak.
1~
Od. un. no.2!113-115 161. 041"RA 17:8)

DOTYAN, O.K.; CIVCHINNIKOVA, Ye.N.; Q-%
4-atalytt-i activity of plativated ni-Rel as related t-) sul-fur
dmide Qddation. Naueb. ezbegod.-ih-111j, fmL-. 0d. tin. no.2.
115-116 161. (MIRA 17,8)

I)ANTUN, O.K.; RUSKOVA, M.S.; MANAKIN, B.A-
Study of galvanic cells by means of hydregan peroxide as a
depolarizer. Nauche ezhagyod. KUm. fak. Od. un. no.2,-1.17-NO
16a. (MIRA 17A)

DAVTYAN, O.K,; LZMAYLOVA-IRATUSHNAYA, D.N.; MANISIN', B.A.
Study Gf an oxygen e-lectrode on a chromiumnickel carrier.
Naucb. ezhegod. Khim. fak. Od. un. no.2-12C~-123 161.
(MIRA I?z8)

DA.VTTAN, O.F.; BURSHTEYN, S.I.; R! BOK FAIN
Filtering and absorptive properties of (Jdessu green clays.
Nauch, ezhaged, Khim. fak. 0d. un. no.2,.12~-125 161.
(MIRA 17:8)

kYAN OVCHINNIKOVA, Ye.N.; SOBOLEVA, N.M.
Interaction of carbon dioxide vith finely dispersed calcium
oxide in the presence of water vapqrs. Hauch. ezhegod. ftim.
fak. Od. un. no.W28-129 161. (MIRA 17: 8)

DAYMN,, O.K. 3 OVCHINNIKOVA, Ye.)I.
Mechanima of oxidation., hydrogenationt and electrochemical combustion
on solid cat4aysto. Part ls Oxidation of sulfur dioxide on an
activated carbon surface at,200G in the presence of water,vtpor,
Zhur. fis. kJiim; 35 no. 4013-718 Ap 161. (MIRA 14:5)
1e Odesak~i goaudaretvennyy univeroitet im. I.I. 14echnikovaj, kafedra
fizicheakoy khimii,
(Sulfur dioxide) (Oxidation)
(Carbon., Activated)

I)AVTYANp O.K.; TKACH, Yu.A.
Wchanion of oxidation,,,bydrogenation,, and electrochemical
combustion on solid cata37sts. Part 2*. Catalytic activity of
surface waxides" on carbon. Zhur. fiz. khim. 35 no.5:992-.998
W 161. (MIU 16:7)
1. Odesskiy gosudaretvennn universitet imeni, VAchnikova.,
kELfedra fizichaskor lrhl-ii.
(Sulfur dioxide) (Oxidation) (Catalysis)

4AT;UN, O.K.; %UaKINp B.A.; WSYUK., E.G.; POIJSHGMM,, U.N.
Mechanism of oxidations hydrogenation, and electrochemical combustion
on solid catalysts* Part 3t Relation between depolarizing oxides
on carbon and p1atimvi and the catalytic effect of the latter in the
oxidation of SO~. -Zhurfiskhimo 35 no*6:1186-3.191 Je 161.
(Km& 14:7)
1. Odeaskiy gosudaretvennn'universitst imeni, I.I.Mechnikova,
ka:redra fizicheskoy ' 0
(Elecirochemistry) (Gatalyafts)

S/076/61/035/009/001/015
.BIOI[BI10
AbTHORS: Ovehinnikova, Ye. N.f and Davtyan, 0. K.
TITLE: Study of the mechanism of oxidation, hydrogenation, and
electrochemical combustion on solid catalysts. IV. Low-
temperature oxidation on platinum
PERIODICALt Zhurnal fizicheskoy khimii, V- 35, no. 9, 1961, 1907 - 1910
TEXT: The authors studied the oxidation of SO 2 on the surface of a
platinum catalyst. Method and apparatus had been described for the use
with activated carbon (Ref. 3.' Zh. fiz. khimii, 0-, 713, 1961). The
catalyst was produced by electrochemical precipitation of platinum black
from chloro platinic acid on a platinum wire net. The amount of precipi-
tated platinum black was determined gravimetrically, and the activity of
the catalyst was referred to 1 g of platinum black since the platinum net
had no activity under experimental conditions (200C). The ELpparatus with
the net carrying the platinum black was evacuated. Cleaned air (140 mm
and SO 2 (2,40 'am Hg) were filled in. After a certain time, the gas
Card 1/3

S/076/61/035/000/00'/015
Study of the mechanism... B101/~110
was sucked off, the catalyst washed in boiling water, and the amount of
resulting H2so 4 determined titrimetrically. The catalyst was found to
become poisoned by repeated treatment with SO 2' In the first experiment,
its activity was about 0-33 mm oles H2so41g, in the fourth one, only
0.1 mmoles/g. control tests with chemically pure SO 2 produced from Na 2S03
proved that the SO 2 itself, and not any impurities, exerted the poisoning
action. The degree Of POiBDning depends on the number of contacts between
catalyst and SO 2, not on their duration. The experimental results are
explained as follows: Oxidation of SO 2 is performed by oxygen chemosorbed
on the active centers cf the catalyst. The catalyst is poisoned by
chemosorption of SO 2 molecules on the active centers; thus, these centers
are exempt from oxidation. The following tests are mentiQned as a prooft
(a) The platinum catalyst was degasified in vacuo for 2 hr at 1000C, and
subjected to the action of tin SO 2 atmosphere for 2 hr at the same temper-
ature. After cooling to 200C, sucking-off of the SO degasification of
Card 2/3 29

S/076/61/035/009/001/015
Study of the mechanism... B101/B110
the catalyst in vacuo, the catalyst had only an activity of 0.088
mmoles/g. Thus, the contact with SO 2 (without 02 ) at 1000C pToduced a
high degree of poisoning. (b) Two treatments of a freshly prepared
catalyst with SO2 (without 02) reduced its activity to 1/10. A paper by
0. K. Davtyan et al. (Zh. fiz. khimii, 11, 1186, 1961) is mentioned.
There are 2 figures and 5 Soviet references.
ASSOPIATIONz Odesskiy gosudarstvennyy universitet i.m. I. I. Mechnikova
(Odessa State University imeni I. I. Mechnikov)
SUBMITTED: April 20, 1959
Card 3/3

DA-VTYAN., O-OKO
Calqv.~ati.pn~of,ab6olute reaction rates. Zhur.fiz.khim. 35:'
(MIRA 14:10)
1. Odefiskiy 'gosudarstve=yy universitet ime2ii. ~.I. Mechnikova.
(C.hemidbLI reaction, Rate of)

DAMAN O.K. (Odessa)
Mechanism of oxidations hydrogenations and electrochemical
combustion on solid oa~alysts. Part 5: Origination of potentials
of hydrogen and oxygen electrodes and the dependence of the
potentials upon the degree of filling of active centers
of the catalyst surface. Zhur.fizekhim. 35 no.1I.-'P582-
(MM, 14:12)
2588 N '6l.
L Odesskiy gonudwstvemyy universitet.
.Catalysts)
teotrochemiptry)

1\ CAD
AUTHORS:
TITLE:
PERIODICAL:
kiss
31185
S/076/61/035/012/005/008
B138/B101
Tkach, Yu. A., and Davtyan, 0. K.
Investigation of the mechanism of hydrogenation and electro-
chemical combustion on solid.catalysts. VI. Active centers
and the appearance of the oxygen potential on carbon
Zhurnal fizicheskoy khimii, v. 35, no. 12, 1961, 2727 - 2735
TEXT: Only the oxygen adsorbed by carbon, and which can readily be
evacuated in a vacuum at 200C, in active in the catalytic oxidation of SO 2
at low temperatures (Ref. 1: Zh. fiz. khimii, 22, 992, 1961; Ref. 2: ibid;lj
35, 1186, iq6i). Only the active centers of the carbon participate (the
number of these has been calculated). In the chemisorption of 0 2 on
carbon, the positive potential depends on the coverage of these active
centers. To explain these processes 0. X. Davtyan (Ref. 3: Zh. fiz.
khimii, li, 2582, 1961) made the following assumptions: 1) the chemical
and electrochemical activity of the catalyst electrode is dependent, not
on the total amount of chemisorbed substance, but on the amount" adsorbed
Card 1/4

X
S/076/~1)b%/012/005/008
Investigation of the mechanism of... B138/B101
on the active centers; 2) surface migration, with the surmounting of the
potential. barrier, leads to mutual transfers between the particles
chemisorbed on active and inactive centers. He derived the equation
2Q.,
Q.+Q,.
shoring the dependence of the electrode potential on the amount of material
chemisorbed 6n active-centers. E = electrode potential at- the coverage
given, which corresponds to Q coulombs; Cc = maximum electrode potential
,in the solution; Qo = maximum amount of active substance chemisorbed at cc;
61 = potential where Q = 0. For the number of active centers as a function
of maximum potential the equation
Q
Q0 = - 1 (2)
2.10-0-301 1&9149- 1
wheAerived, where 5E 1`0 s:o on the basis of the
curve in Fig. 10. These equations and assumptions were examined
.experimentally in this-work. Transfer of chemisorbed 02 from inactive
t6 active centers vias effected by the method described in kef. 1.
The carbon black electrode was heated in a vacuum
Card 2/4

S/076~16T1O35/012/005/008
Investigation of the metchanism of... B138/B101
for 12'.1/2 hrs at 6000C. The electrode was oxidized for 2 1/2 hrs with 0 2
at 250C and atmospheric pressure, and the reaction vessel was filled with
31% H2so 4* After the cathode polarization current had been switched off
the potential rose at a rate which increased with temperature. 1.7hen the
potential value had been rest6red and secondary cathodic polarization
carried out, oxygen loss occurred, which also increased with temperature.
In the first case it is assumed that there was 0 migration from inactive
2
to active centers, and in the second, in the opposited direction. When
polarization was repeated, lower potential values always appearedt
gradually eliminating the 0 2 from the electrode. Anodic polarization at
various current densities agreed-with Davtyan's/equation over a wide range.,
Using the second equation Q0 = 131.64 gcoulombs cm2 was found, which
corresponda to 4.107-10 18 active centers per m2 carbon black. ThQ number
of active centers was also determined by the amount of SO 5formed (luring
the low temperature oxidation of S02 on carbon (Ref. 1). Maximum
adsorption was 0.5464 mmole/g, which corresponds to 0 2 ' 107.60 Vcoulombq.6m~
Card 3/4

L8
S/07~6: 1~ 035/012/005/008
BI ,
Investigation of the mechanism of... B138 B101
18 2
This makes the number of active centers 3.358-10 per m There are 11
figures and Soviet references.
ASSOCIATION:~ Odesskiy Go'sudarstvennyy universitet im. I. I. Mechnikova
(Odessa State University imeni I. I. Mechnikov)
SUBUITTED: April 4, 1960
Fig. 10. Curves for anodic polgrization of
the carbon black electrode at 0 C and
different cujirent ~ensitias. _8
~1~) 1.06-10-- a/cm ; (2) 7-41-10 )a/cM2
3 calculated according to Eq. (1 ;
Legend: (a) pcoulomb/cmz; (b) potential, v.
Cb
Card 414

PAYZUl.v__Qgwvz_Kgrapoi~~v eh- NIEDLAYEVp L.A., red.; ALAVERDOV,
L__j
Ya.G., red. ivd-va; VQBOIUXA, R.K., tokbn. red.
lQuantum cheidstry] Kvantovaia khiniia; kurs lektsiij, pro-
chitannyi v Odesokom gosudarstvennom universitets.' Moskva.
Vysshaia shkola, 1962. 782 pi (HIRA 1615)
(Qwmtu,m- chemistry)

AUTHORS:
TITLE:
PERIODICAL:
17 (17
s/616/~2/036/oO4/001/012
B101/B110
Davtyan, 0. and Misyuk, E. G.
Investigation of the mechanism of oxidation, hydrogenation and
electrochemical burning on solid catalysts. VII. Problems of.
chemisorption. Formation mechanism of the hydrogen- and oxyged
electrode potentials on platinized platinum
Zhurnal fizicheskoy khimii, v- 36, no. 4, 196z, 673-68o
TEXT: In a previous study (2h. fi"z. khimiij Ill 2582, 1961), the
following assumptions were made concerning the chemisorption of H 2 and 02 i
on catalyst surfaces, as well as formation and change of the catalyst
or electrode) potential depending on the occupancy of the active centers
AC) by chemisorbed gas: (1) the electrode (or catalyst) surface is
~
energetically inhomogeneous. It has (differently intensive) AC, across
which all processes of chemisorption and desorption proceed. (2) The
occupation of the total surface of an electrode takes place by migration
of the chemisc):rbed gas from the AC to less active and inactive centers.
This process is reversible and tends towards a dynamic equilibrium.
Card 1/3

S/076/62/036/004/001/012
Investigation of the mechanism B1O1/B11O
(3) The change of the electrode potential, with change of the occupancy is
based on concentration polarization. The number of occupied AC for a
-given potential is determined by the difference of the energy levels of
the particles on the AC and in the solutions. For energetically vaTYi-rg
AC the potential depends on the mean difference of the energy levels.
M E -[ +
(4) On the basis of these a3sumptions, 6. 0 (E0-E1)/l0g23l0g[2VQo Q)1
(1),was derived for the electrode potential E. E is the limit potential
of the gas electrode; Qo is the quantity of electricity 'Corresponding to
electrode saturated to a maximum with gas; q is the amount of electricity
for a certain amount of chemisorbed gas; F_ is the potential corresponding~:
to Q; E~l is the initial potential at the beginning of chemisorption.
These assumptions were experimentally checked in the present study by
means of a platinum-black Islatinized platinum wire electrode in KOH solu-
tion. I. A teat of the H migration on the electrode showed the followingi
resultai (a) Gathodia Pohr4sation of the elaotrade after the setting i11.1
of migration equilibrium was -0.76 v. Current waa switched off after
anodic polarization up to -0-137-v, and cathodic polarization only reached'
about 0,20 v. This could be repeated, and to each (lower)'112 content. of j
the electrode surface there corresponded a certain potential which
Card 2/3

S/076/62/036/004/001/012
Investigation of the mechanism ... B101~B110
develops by migration of H2 from inactive centers to AC. So far, this
effect has been explained by diffusion. b) The migration of H2 from AC
to inactive centers is seen from the fact that (at 10OPC) cathode
polarization up to -0.08 v and cut-off is followed by rapid approach of
the potential to an equilibrium value about 0.03 v. (c) By,"freezing"
the migration at 00 C, a wide range (0 to'-0-565 v) of agreement with the
values calculatea from Eq. (1) was found for 6 . (d) The va37.ing activity
of the AC was proved by the dependence of the agreement between calculated
and experimental 6 values on the initial occupancy. Since H2 is first
sorbed at the mo3t active AC and then at the less active centers, migration
sets in more easily at a high occupancy and thus also deviation of the
experimental value from the calculated one. II. Chemisorption of 02
produced similar results. 0 migration is slower than that of H2.
2
III. The anodic polarization of Pt at 1000C was found to lead to its
partial oxidation: the number of AC decreases with increahing temperaturee
There are 7 figures.
ASSOCIATION; Odeaskiy gosudar8tvennyy universitet im. I. I. Mechnikova
(Odessa State University imeni I. I. Mechnikov)
SUBMITTED: May 26, 196o
Card 313

h2182
S/076/62/036/011/005/021
B101/B180
AUTHORSj Tkach, Yu. A*9 and Davtyan, 0. K. (Odessa).
TITLEt Mechanism of oxidation, hydrogenation and electrochemical
combustion on solid catalysts. VIII. Migration kinetics of
chemisorbed oxygen on a carbon electrode
PERIODICAL: Zhurria.1 fizicheskoy khimii, v. 36, no. 11, 1962, 2574 - 2381
~EXTz Oxygen was adsorbed by anodic polurizati'on at 0, 50, and 100 OC,
corresponding to 46.67 and 63.64 Atcoulomb/cm2 on a carbon black electrode
degassed in vacuo at 6000C and electrochemically refined from oxygen at
1000C. The change in potential was plotted, due to oxygen migration from
active to inactive centers after disconnecting the current. The values
approached an equilibrium potential. At a total oxygen concentration of
,46.67 I-Lcoul/cm 2, this is 0.375 v at 00C, 0.357 v at 500C, and 0.335 v at
1000C. For an oxygen concentration of 63.64,ucoul/CM2, the values are
0-505, 6.481, and 0-454 v, respectively. Based on the law of mass action
and on formal kinetics, calculation of the oxygen migration velocity from
Card 1/2
VY

Mechanism of oxidation...
S/076/62/036/011/005/021
B1O1/B18O
active to inactive conters, and vice versa gives oxygen concentration
curves which do not agree with experimental data. On the other hand, the
experimental curves are ueed to determine the equilibrium constants k and
k2 for dir'ect and inverse migration; and, using of the Van't Hoff and
Arrhenius equation; it was found that log k was a linear function of I/T
greatly inclined toward the axis of abscissas. Hence, the activation energy
is calculated as E 1~6 716.81 cal/mole for direct and E2 a 2833.02 cal/mole
for inverse migration. The passage of chemisorbed particles from active to
inactive centers, and vice versa must thus occur by surface migration, a
definite potential barrier being-surmounted. There are 5 figures and
4 tables.
ASSOCIATION: Odeaskiy gosudarstvennyy universitet im. I. I. Mechnikova
(Odessa Stat* 'University imeni 1. 1. Mechnikov)
SIJBI&ITTEDz May 21, 1961
Card 2/2

Mechanism and Kinetics of Curr*nt Producing Processes in the Electrochemical
Oxydation of Gases
Report presented eit the 24th meting CITCE,Intl. Comm. of Eledrochemical
Thermodynamics and Kinetics., Moscow, 19-25 Aug 63.
Odessa University, Odessa, U.S*S.R.

DAVTIAN, 0. K.
"Mechanism and Kinetics of Current Producing Processes in the Ilectro-
chemical Oxidation of Ganes.141
lb-port presente4L at the 14tk Annual Meeting of the International Committee
on'llectrochemical Thermodynamics and Kinetics (CITCE)p Moscow, 19-25 Aug 63,

~~F_T ;7;
lll-WO08920 BOOK Mn#TATICN S1.
Davtyan, Ogahes Karapetovich
~=tun chemistry; lectures delivered at Odessa State University Mantovaya.
khimiya; 11curs lektsiy, prochitanyhy v Odesskan 'gosudarstvennom universitete)
~bscaw, I'Vy*shaya shkolill, 63. 0782!p. illus...:biblIo., index. Errata slip,
inserted. 5,000 copies printed*
y9 quantm statistics chez&cal. bond
TOPIC TAGS: huantun chendWWY, quantun t1wor
jhtermolecular interection . molecular orbitail: method,, chemical reaction, reacticn
,-ability, reactiion rate
MRPOSE AND covERAGE: The I=k, is based, on a lecture course delivered by the
author in the'physical d=Lstry departmmt. of the; Odess~iy gosudarstvemy*y
universitet (Odessa State Wiversity) and omtains extensive systematized mathe-
matical and quantun-mechaniml material nfl.,Cesl tanding of the
my for the unders
principles of quantun chemistry. Hany of the methods used in quantuu chanistry
axe explained in detail and iwe Mustrated by nunerous examples. These include
the Hartree-Fok method, the Ileftler-Imdcii method, the method of molecular orbitals'
1 and methods of - valwt bcnds.,. The purpose of the book is to acquaint a large circle
i of chemists and physicists Wah modern awiputatim methods$ and
Cam 1/3
-----------
-------- --

AM4008920
is intended for;independent study.- The.aut~w thankr. Ac&demician
N. N. Boglyubov
and Professors V. M. Tatevs)ci.y and L. Nikolayev for reviewing the manuscript,
critical remards,, and for Valuable advice.
TABLE OF CONTENTS [abridged]:
Erm the publish,er - - 3
Foivwrd 5
Sec. 1. Main premised and matJwiatical, fbrma~ of quantun mechanics 10
(Deals with apprcxinate q!Mntum-calculaticn methods such as perturba~
theory and the variation'&L methods, the u!oe of matrices and group theorys the
use of statistical methods,, the. self consistent. field method, etc.)
See. .2. C=plex systems and pi4Mcipal methcxIs for,their analysis - - 120
Sec4 3. Quantun theory of the (%emical bond and intermolecular interaticn
Sec. 4. Quantum, theory of cheWUA1 reactions and reactivity 657
Appendix - - 758
Literature - - 760
Subject index - - 160
Subject index - - 766
Cari 2/3
..... ... ....

AFFTC/ASD pZ-4 RH
Dews
A ION no AP3006612 8/0076/63/037/009M49/190
A I DaTtrenjo 0,11t,
the. recent status atf ftel 0613t8
a ~Uof
SOMCES Zho 91siaheakcV khteli 37.,'no. 9., 2,963 2~494957
WPIC TAQGz fuel can# eleo*~rcchasdcal snorgrp thermal energy, automobile ibattery,'
automobile en&wj gaseous fuel., photo3ysis
ABSTRACTs The sain adwantago of sUctrochenicaI energy - over Thermal energy':13 due
to the high - eMolency of fuel calls* 7hia: has been. concluded not only Zrom
tharmo-4ynamdo relationships Imt also has been proven under actual vorking
conditions* Atel calla also affer other advantages- -such as Simplicity of design
and absence of movable parta and noxious gases* - ThW. are considered to be ideally
suitedfor various meaw of transportation., particular2y for cars because fuel
cells are not affected tV short-(drcuiting which is extreme3y Important in startinj
.1, Also In tempora
r7 stopping a fuel call battsi7.will hard3y use mW fuel, whw"s
Ithsrmal conversion engines C*nBUM* fUel eVe"M at idling - Speed, ThUS L fuel eon
batteries vill probably find -use in care and railroad. engines. Fuel cells can
;Card 1/2

ACCWUON NRs Ap3006612,
OGUM of -dirilb OR I _ih Slectroplatingo
VIP01aca StAg~age batterieg
r
pefining of some "tale OVI
vduotion of bV&ogen isotoolto' 4drQMQ3;yI;GA-bAttvdG9 0 d be usad in
*Be ~ The author,, who bA3, beenacti1ve3y one ged in
a
On fuel 08118 'since 1936,9 feels,that, most prw4nmt fuels will
be psea
liquids because coal will 'be 2bdtod wwltwirely to BiBrys as raw =terlal in
iand
,;C
hesai
Cal industry-* Oa9eOU5 IVOIS WM be avId3AIDI8 93 - bV-Prod=ta of coke and
petroleum idustries and bV "processing of natnral -pa.. WdrOVn b
winbe 0 tained
:frosm electro3yeis of vat6r with enerj7,vuppl:Le,d IV, solar batteries or d!xect3y by
'the am (phot,63yalv)e Water paver, atomic piwer and wind power could also suppay
One
rgy for the manufacture of I;rdrogen* OonseqwmtIvv electracbmicaa energy
Wl
-1 because the primary source of power in I'luture transportationj, and eventual3y
vIU. be combined with atomic and solar eneraro Orige art, has t I table*
AS=IkTIONs Odesskiy goandarsityenrM univorsitet in..j. T9 Meabnikova (odessa
State Univeraitr),11
SU&.MT=s I%tW63. DM 30UP63 EM 0
SUID CoM off WO Ra 10vt 01? OTM2
2/2
Cc

NR: AP4034~72 $/()076/64/038/004/0823/0832
IMMOR: Davtyan, 0., K. (Odessaj
'TITIE: Study of oxidations Iiydrogenation and electrochemical combustion on 8
catalysts. IX Functioning of membrane e.U-ctrcdes (ra rane type catalysts) in the
:electrochemical combuotion of gazes and in other homogeneous processes
f
;SOURCE: Zhuraal fizicheskoy khimii,, V. 38, no. 4, 1964, 825-832
ITOPIC TAGS: membrane electrode., electrode., cats.3,yst, surface catalysis.. fuel
:cell., cell., heterogenious cata3,vois., catal,%,rsis, electrochemistry
'ABSTR&CT: One of the bases for the construction of gaseous elements Lad, coase-
:quently, the electrodes.is that reacting gases and the electrolyte musthave a
'free access to the surfwe of the catalyst or the electrodes in order to fom an
.active contact of three pbasps: gas-catalvat-electrolyte. This article consideredi
two methods of forming am active tbree.p~I~ase boundary, vhich an (1) kyd~bi-
zation of the electrode aria, (2) formation of pressure, drop between. the reactlug
!gas's and the electro3,yte. The hydrophobization, of the electrode must be~carried
out In such a way that thet electrode acodres a ?Wfinite vetability gradient; US
Card

AcmssicK NR: AM34572
greatest concentration of hydrophobic rul)stBnce must be on the gas side of the
.electrode. Investigation is made of the mer-hanisms of successive stages of c'urrenti
1producing processes such as cbemisorpti.on of gas,, migration of chemisorbed
particles to the active sections of the three phase boundary and ionizatich of tbs.
cbemisorbed particles. A precise definition is given for the three-phase active
i
'boundary concept. The re-action conditions considered are for functionibg of tbs
i membrane type catalyst as fuel-cell electrodes xith liquid electrolyte. These
I are applicable to any heterogeneous =Uaysia reactions in which the reactant is
lboth in the gaseous and ta the liquid #we. Orig. art. has: 3 figures.
ASSOCLATIM: Odes1dy Goau&mtvenn* Universitet (Odessa State University)
SUBMTM): 19Kay62 DATE AOQ: 2DMay64 ENCL: 00
SUB CODE, GGI I? NO'MW BOY; 005 OMW: 002
L-Card 2/2

ACCESSION Nif-' AP4039614 S/0076/64/038/005/10'77/10831
1AUTHORs Davtyan, 0. K. (Odessa)
!TITLE: Study of the mechanism of oxidation, hydrogenation, and elec-
I - -
1trochemical combustion on solid catalysts. X. The oxygen electrode
SOURCE: Zhurnal fizicheskoy khimili, v. 38, not 5, 1964, 1077-1083
'TUF1G WAGS: clectrochemicil oxidation, oxygen electrode, oxidation
11catalyst, metal oxide patalyst, MOLi2O catalyst, oxygen chemisorptiont
oxide electrical conductivity
IABSTRACT: A theoretical study of the chemisorption of oxygen on
!a catalyst surface has been presented as the principal approach
!to the selection of catalyst-carrLers for oxygen electrodes with
predictable electrochemical activity. The metal oxides NiO, CoO,
CuO, MnO,etc.pand solid solutions oftheso oxides and lithium oxide
have been examined from the aupect of their serving as oxygen alec-
trode.carriers. A relation between the-hole-type conductivity of
ithoseoxides and lithi Ium oxidis and the chemisorption of oxygen on.
Card 12

ACCESSION NR: AP4039614
their surface is given. It was shown that all factors leading to
a decrease in the elastic iorcev of the-crystal lattice of these
oxides should lower the activation energy of electrical conductivity
and chemisorption. The rate of the current generating processes
on the oxygen electrode with's solid solution carrier of lithium
oxide and NiO. Coot Cuot MnO ate. depends upon the hole concentration,
which'is equivalent to the concentration of lithium. The electro-
chemical activity of the electrode increases with increased concen'.
tration of lithLum.in the solid solution passing-through amaximum.
The conclusions were confirmed experimentally. OrLg, art, hass 17
formulas,.
ASSOCIATION: OdeaskLy gosuderetvanny*y universitst in. 1. 1.
MechnLkova '(Odessa State University)
SUBMI~TEDs Mar63 _DATE ACQo;.19junfi4 RMCLs 00
SUB CODE: GO NO REP SOVt 005 OTHERs 004
Card 2/2

ACCESSION RR: AP40111755 S/0076/64/0338/006/1594/1599
AUMOR; avt
D
TITJB- Study of the mechanisms of oyidations hydrogenation and electrochemical
combustion on solid cataVates 'a# Potoltial of g~w ejectrodeq tw a functinn of
'the nature of carriltr
:SQURCE: Zhurnal fizicheskoy khimii., v# A no. 6, 1964p 1594-1
(5599
TOPIC TAGS: fuel cel1y electroeb(mistry) adsorption$*gas electrode., electrode
potential, catalysis, surface catalyaiu., chemical potential
ABSIMACT: The tbermodyaam1caUy reversible potential of a gas electrode is dater-
mined by the maxbrumvork.of conversion of a given gas at a given pressure frcm
'the molecular state into'electr>lytle solution in the form of ionno These process.
en of hydrogen anti -ogrgen electrodes may be represented as followsi
1FH2(g)-X4(l)+e-
-2(:L)
:whe-regand IMreuent gaseoun and ionic states Mopectively and thus for any pa
-1/3

ACCUSIM ?P: AP4041755
ZT'& Zg ZY g
Adhere A Z z -Z Is tb difference of the chemical potential of the
system ang P 1S=tb199Mal potential, The article considers the thermodynamic-
ally reversible pot!ential of gas electrodes as a function of the nature of the
:carrier in the absence of contnet with the gaseous phase and also in the 'presence
of contact between the electrode and the gaseous phase. If the gaseous electrode
~is in equilibriximmith the gaseous phase its equilibrium potential is independent
of the nature of the carrier electrode and it is only determined by the changes of
chemical potential during transition of substance f rom. gaseous to ionic state. In
the absence of contact with gaseous phase the magaitude of potential., depending on
the nature of Lhe carrier,, is basically determined by the free energy of chemi-
sorption of the considered gas'. The electrode potential is a function of the num-
ber of active centers and their enerti;y level only for electrodes 'With imwbile
chemisorbed layer in the absence of contact with the gaseous phase. In the general,.
case the number of active centers and the extent of their activity determine only
;the kinetics of our-rent producing processes& If the rate of these processes is
very wall these factors maar also laluence the electrode potentialo, The otandsrd
Card 2/3

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17
. . . . . . . . . . . . . . . . . .

DAVTYAN O.K.
Mechanism of oxidation, hydrogenation, and electrochemical
combustion on solid catalysts. Part 10. Zhur. fiz. khim.
38 no.5:1077-1083 My 164. (MIRA 18:12)
1. Odesskiy gosudarstvennyy universitet imeni Mechnikova,
Submitted March 20, 1963.

DAVTYAN.9 O.K.j Prinimali uchastiye: EPIMAKHOV, Yu.K.; WSYUK, E.G.;
EWff9ff2kN, I.I.; SEMIZOROVA, N.F.
Mechanism of oxidation, hydrogenation, and electrochemical
combustion on solid catalysts. Part 12. Zhur. fiz. khim- 39
no.4:877-883 Ap 165. (MIRA 19:1)
1. Odesskiy gosudarstvennyy universitet imeni Mechnikova.
Submitted Aug. 17P 1963.

L 38164-66 EWT(m)/EViP
)/T RM/DS
ACC NRt AP6019237 SOURCE CODE: UR/0364/66/0021003/0311/0318
AUTHOR: Misyuk, E. G. ; DavtyaB,.O.. 1K.J., Sofronkov, A. N. ; Um~nskiy, M. V.
6RG: 9dessa State University im. I. I. Mechnikov (Odesskiy.gosudarstvennyy universi
tet)
TITLE: A study of electrode semiconducting catalyzers
SOURCE: Elek.trokhimiya, v. 2, no. 3, 1966, 311-318
TOPIC TAM electrode, semiconductor catalyst, lithium, nickel, oxide, electrochemis-
try, electric conductivity, defect structure, temperature dependence, lattice parame-
ter, solid solution, activation energy, chemisorption
ABSTRACT: The effect of fluctuations in hole concentration on electroconductivity,
lattice parameters and activation energies was studied in solid solutions ~f LixMit-0.
Equations are derived for the desorption and chemisor2tionlof-o-xygen Ei Li,'Ni(j..)0, and
for the formation of hole complexes essential to semicondu ting oxides. The above
oxides were formed by reacting nickel and lithium carbonates with acetic acid and de-
composing the resulting acetates in air at 6000C. In this way, oxide mixtures con-
taining 10, 20, ~0, 40 and 50 at % lithium were produced. The solid solutions were
produced by heating the mixtures at 700, 800, 1000 and 12000C. The concentration of
Ni3+, Li20 and Li* in the solid solutions are given for various Li starting concentra-
tions ([Li+10) and reaction temperatures. Lattice parameters varied linearly with
Card

ACC NR% AP6019237
formation teI e ure from 4.16 9 at 700-C to 4.18 R at 10000C. Electrical conductiv-
3T
ity (a), [Ni I content and a/[Ni3+3 are given as a function of formation temperature
for te*sT -temperatures ranging from 20 to 5000C. Maxima always occurred at 9001C (for-
mation temperature) and the maxima was found to increase with test temperatw:,P-. Ma~-
ma also occurred for [Ni3+], plotted as a function of [Li+]() at [Li+10 = 30%. Activa-
tion energies calculated for [Li+1 0 = 20% ranged from 0.83 to 4.37 kcal/mol depending
on the formation and test temperatures. The electrical conductivity depended on the
activation energy, lattice parameter and jump frequency of the transition holes; thus
it possessed an electron hole nature as well as an ionic one. The latter was the
cause of hole complex dissociation and the dissociation of "inert" interstitial lithi-
um oxides into ions. Orig. art. has: 6 figures, 2 tables, 10 formulas.
SUB CODE: 07,11/ SUBM DATEz OlFeb65/ ORIG REF: 004/ OTH REF: 006

L 42159-66 WP(J)/MiT(m)/T/W(t)/ETI IJP(c) R14/DS/jW/qD/jG
ACC NRa AP602Z425 (A) S6URCE CODES UR/0364/66TO-02TO04/0451104
AUTHOR: Msyukt E. G.; Potyan, 0 K.; Uminskiyp M. V.
...........
OIRGI Odessa State University imeni I. I. 116chnikov (Odesakiy gosudarstvannyy univ,
tot)
TITLE: Study of geMiconductor electrodolcatalysts~ Part 2: Dwoondence of the hole
concentration and electrical co-n"d-u-MMY of UxCu(i-x)O solid solutions on the condi-
tions of their formation
SOURCES Elek-trokhimiya, v. 2.~ no. 4, 1966, 451-456
IVI _V1
TOPIC TAGS: lithium oxide, coDper compound solid solution, hole conduction2 H-Fj17'
'0 r *C-Oje-o JJ9W4PA,) 3 '5F'0'7 ' C'OoUD U027,00e- &00Ue-7-1111T ~'
ABSTRACT: ~dxNj_X)O solid solutions with hole conduction, containing 10, 20, 30, 40,
and 50 at. % lit lum, were studied. A marked dependence of the hole concentration on
the temperature of formation of the solid solution and on the initial lithium concen-
tration was noted. Under optimum conditions* 5.6 at. % lithium b es incorporated ii
the solid solution. The difference in the maximum incorporation Zcze"20 in NiO and
is explained by the close similarity of the NiO and M20 lattic8sl The value of
cr ECO*~'] was calculated from electrical conductivity data, and found to increase in
regular fashion with rising temperature of formation of the solid solution. In the
range of 25-5000, the linear relationships log e, 1/T do not show any inflections, but
this must not be construed to indicate the absence of mobile charges of different cha:r-
Card

L 42159-66
ACC NR% Ap6022425
acter. Both hole and ionic conduction should take place in these solid solutions;
however, it is impossible to distinguish these two types of conduction on the basis of
7
the temperature dependence, since their activation energies/hre nearly the same. Orig.
art. has: 8 figures and 3 tables,
SUB CODE: 07,20/ SUBM DATE: OlFeb65/ ORIG REF: 002/ OTH REF: 002
Card