Solid Oxide Fuel Cell Composite Cathodes Based on Perovskite and Fluorite Structures | Sciact - CRIS-system of Boreskov Institute of Catalysis

Solid Oxide Fuel Cell Composite Cathodes Based on Perovskite and Fluorite Structures Full article

Conference

9th European Solid Oxide Fuel Cell Forum
29 Jun - 2 Jul 2010 , Lucerne

Journal

Journal of Power Sources
ISSN: 0378-7753

Output data

Year: 2011, Volume: 196, Number: 17, Pages: 7104-7109 Pages count : 6 DOI: 10.1016/j.jpowsour.2010.07.096

Tags

Cathode nanocomposites, Cell performance, Oxygen mobility, Radiation-thermal sintering, SOFC, Ultrasonic treatment

Authors

Sadykov Vladislav ^1,2 , Mezentseva Natalia ¹ , Usoltsev Vladimir ¹ , Sadovskaya Ekaterina ¹ , Ishchenko Arkady ¹ , Pavlova Svetlana ¹ , Bespalko Yulia ¹ , Kharlamova Tamara ¹ , Zevak Ekaterina ^1,2 , Salanov Aleksei ¹ , Krieger Tamara ¹ , Belyaev Vladimir ¹ , Bobrenok Oleg ³ , Uvarov Nikolai ⁴ , Okhlupin Yury ⁴ , Smorygo Oleg ⁵ , Smirnova Alevtina ⁶ , Singh Prabhakar ⁷ , Vlasov Aleksandr ⁸ , Korobeynikov Mikhail ⁸ , Bryazgin Aleksandr ⁸ , Kalinin Peter ⁸ , Arzhannikov Andrei ⁸

Affiliations

1	Boreskov Institute of Catalysis SB RAS, Novosibirsk, 630090, Russian Federation
2	Novosibirsk State University, Novosibirsk, 630090, Russian Federation
3	Institute of Thermal Physics SB RAS, Novosibirsk, 630090, Russian Federation
4	Institute of Solid State Chemistry and Mechanical Activation, Novosibirsk, 630090, Russian Federation
5	Powder Metallurgy Institute, Minsk, Belarus
6	Eastern Connecticut State University, Willimantic, CT, USA
7	University of Connecticut, Storrs, CT, USA
8	Budker Institute of Nuclear Physics, Novosibirsk, 630090, Russian Federation

Funding (3)

1	European Commission	20089 FP6-2004-ENERGY-3 SOFC600
2	Президиум РАН	57
3	North Atlantic Treaty Organization	SfP-980878

This work presents the results related to the functionally graded fluorite (F)–perovskite (P) nanocomposite cathodes for IT SOFC. Nanocrystalline fluorites (GDC, ScCeSZ) and perovskites (LSrMn, LSrFNi) were synthesized by Pechini method. Nanocomposites were prepared by the ultrasonic dispersion of F and P powders in isopropanol with addition of polyvinyl butyral. Different techniques for deposition and sintering of functionally graded cathode materials were applied including traditional approaches as well as original methods, such as radiation–thermal sintering under electron beam or microwave radiation. Morphology, microstructure and elemental composition of nanocomposites was characterized by XRD and HRTEM/SEM with EDX. Even for dense composites, the sizes of perovskite and fluorite domains remain in the nanorange providing developed P–F interfaces. Oxygen isotope heteroexchange and conductivity/weight relaxation studies demonstrated that these interfaces provide a path for fast oxygen diffusion. The redistribution of the elements between P and F phases in nanocomposites occurs without formation of insulating zirconate phases. Button-size fuel cells with nanocomposite functionally graded cathodes, thin YSZ layers and anode Ni/YSZ cermet (either bulk or supported on Ni–Al foam substrates) were manufactured. For optimized composition and functionally graded design of P–F nanocomposite cathodes, a stable performance in the intermediate temperature range with maximum power density up to 0.5 W cm−2 at 700 °C in wet H2/air feeds was demonstrated

Sadykov V. , Mezentseva N. , Usoltsev V. , Sadovskaya E. , Ishchenko A. , Pavlova S. , Bespalko Y. , Kharlamova T. , Zevak E. , Salanov A. , Krieger T. , Belyaev V. , Bobrenok O. , Uvarov N. , Okhlupin Y. , Smorygo O. , Smirnova A. , Singh P. , Vlasov A. , Korobeynikov M. , Bryazgin A. , Kalinin P. , Arzhannikov A.
Solid Oxide Fuel Cell Composite Cathodes Based on Perovskite and Fluorite Structures
Journal of Power Sources. 2011. V.196. N17. P.7104-7109. DOI: 10.1016/j.jpowsour.2010.07.096 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Jun 24, 2010
Accepted:	Jul 28, 2010
Published online:	Aug 18, 2010
Published print:	Sep 1, 2011

Web of science:	WOS:000292661800007
Scopus:	2-s2.0-79958859731
Elibrary:	16988108
Chemical Abstracts:	2011:730460
Chemical Abstracts (print):	155:217105
OpenAlex:	W1980789798

DB	Citing
Web of science	18
Scopus	22
Elibrary	23
OpenAlex	20