Studies of Oxygen Transport Mechanism in Electrolytes Based on Doped Lanthanum Silicate with Apatite Structure Using Techniques of Oxygen Isotopic Heteroexchange and Impedance Spectroscopy | Sciact - CRIS-system of Boreskov Institute of Catalysis

Studies of Oxygen Transport Mechanism in Electrolytes Based on Doped Lanthanum Silicate with Apatite Structure Using Techniques of Oxygen Isotopic Heteroexchange and Impedance Spectroscopy Full article

Journal

Russian Journal of Electrochemistry
ISSN: 1023-1935 , E-ISSN: 1608-3342

Output data

Year: 2011, Volume: 47, Number: 4, Pages: 427-441 Pages count : 15 DOI: 10.1134/S1023193511040136

Tags

doped lanthanum silicate with an apatite structure, impedance spectroscopy, isotopic oxygen heteroexchange, mechanism, oxygen conductivity, solid electrolytes

Authors

Sadykov V.A. ^1,2 , Kharlamova T.S. ¹ , Mezentseva N.V. ¹ , Pavlova S.N. ¹ , Sadovskaya E.M. ¹ , Muzykantov V.S. ¹ , Bespalko Y.N. ¹ , Usoltsev V.V. ¹ , Zevak E. ² , Krieger T.A. ¹ , Ishchenko A.V. ¹ , Uvarov N.F. ³ , Ulikhin A.S. ³ , Chaikina M.V. ³ , Argirusis C. ^4,5

Affiliations

1	Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Lavrent’eva prospect 5, 630090 Novosibirsk, Russia
2	Novosibirsk State University, ul. Pirogova 2, 630090 Novosibirsk, Russia
3	Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences, ul. Kuteladze 18, Novosibirsk, 630128 Russia
4	Clausthal University of Technology (TUC), 38678 Clausthal–Zellerfeld, Germany
5	Department of Chemical Technology, National Technical University of Athens, 15780 Athens, Greece

Funding (4)

1	Russian Foundation for Basic Research	09-03-12317
2	Siberian Branch of the Russian Academy of Sciences	57
3	Президиум РАН	57
4	European Commission	33410 FP6-2004-NMP-TI-4 STREP MATSILC

The work presents the results of studying the mechanism of oxygen transport for a new promising class of oxygen–containing electrolytes based on lanthanum silicate with an apatite structure using imped ance spectroscopy and isotopic oxygen heteroexchange. At 1000 K, in the case of samples with an optimum composition including codoped Fe and Al, σ ~ 3 × 10–3 to 10–2 S/cm and D* reaches ~10–8 cm2/s, which is close to the values of YSZ and Ce0.9Gd0.1O2 – δ (GDC). Lower energies of conductivity activation and oxygen diffusion for doped apatites (~0.5–0.8 eV instead of ~1 eV for GDC) and also equivalence as regards exchange of all oxygen atoms within apatite agree with the model, in which oxygen mobility is determined by a nonlinear cooperative migration process of oxygen atoms with fast exchange between interstitial and regular sites.

Sadykov V.A. , Kharlamova T.S. , Mezentseva N.V. , Pavlova S.N. , Sadovskaya E.M. , Muzykantov V.S. , Bespalko Y.N. , Usoltsev V.V. , Zevak E. , Krieger T.A. , Ishchenko A.V. , Uvarov N.F. , Ulikhin A.S. , Chaikina M.V. , Argirusis C.
Studies of Oxygen Transport Mechanism in Electrolytes Based on Doped Lanthanum Silicate with Apatite Structure Using Techniques of Oxygen Isotopic Heteroexchange and Impedance Spectroscopy
Russian Journal of Electrochemistry. 2011. V.47. N4. P.427-441. DOI: 10.1134/S1023193511040136 WOS Scopus РИНЦ ANCAN OpenAlex

Садыков В.А. , Харламова Т.С. , Мезенцева Н.В. , Павлова С.Н. , Садовская Е.М. , Музыкантов В.С. , Беспалко Ю.Н. , Усольцев В.В. , Зевак Е.Г. , Кригер Т.А. , Ищенко А.В. , Уваров Н.Ф. , Улихин А.С. , Чайкина М.В. , Аргирусис Х.
Изучение механизма переноса кислорода в электролитах на основе допированного силиката лантана со структурой апатита методами изотопного гетерообмена кислорода и спектроскопии импеданса
Электрохимия. 2011. Т.47. №4. С.453-467. РИНЦ

Submitted:	Jul 1, 2010
Published print:	Apr 1, 2011
Published online:	May 1, 2011

Web of science:	WOS:000292270800009
Scopus:	2-s2.0-79958156651
Elibrary:	16989556
Chemical Abstracts:	2011:544307
Chemical Abstracts (print):	155:629952
OpenAlex:	W2162062681

DB	Citing
Web of science	8
Scopus	9
Elibrary	8
OpenAlex	9