Journal
ACTA MATERIALIA
Volume 57, Issue 4, Pages 1165-1175Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.actamat.2008.10.047
Keywords
Perovskite; Symmetrical cell; Redox stability; Oxygen reduction; Solid-oxide fuel cell
Funding
- National Natural Science Foundation of China [20646002, 20676061]
- National 863 program [2007AA05Z133]
- National Basic Research Program of China [2007CB209704]
Ask authors/readers for more resources
A novel perovskite-type La0.8Sr0.2Sc0.2Mn0.8O3 (LSSM) oxide was synthesized and evaluated as the electrode material of a symmetric solid-oxide fuel cell. Characterization was done by electrical conductivity, crystal structure stability, redox stability. catalytic activity for methane oxidation and oxygen electro-reduction. LSSM shows greater electrical conductivity than the typical La0.8Sr0.2Cr0.5Mn0.5O3 (LSCM) perovskite Oxide under both anode and cathode operating conditions. It also shows excellent chemical and Structural stability due to the backbone effect of Sc3+ for the perovskite lattice structure. A symmetric electrolyte-supported cell with 0.3 mm thick scandium-stabilized zirconia electrolyte and LSSM as cathode and anode shows peak power densities of 310 and 130 mW cm(2) at 900 degrees C. respectively, when operating on wet H-2 and wet CH4. Stable performance is demonstrated. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available