A new symmetric solid-oxide fuel cell with La0.8Sr0.2Sc0.2Mn0.8O3-δ perovskite oxide as both the anode and cathode

A new symmetric solid-oxide fuel cell with La0.8Sr0.2Sc0.2Mn0.8O3-δ perovskite oxide as both the anode and cathode

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 o...

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Veröffentlicht in:Acta materialia 2009-02, Vol.57 (4), p.1165-1175
Hauptverfasser: YAO ZHENG, CHUNMING ZHANG, RAN RAN, RUI CAI, ZONGPING SHAO, FARRUSSENG, D
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Applied sciences
Catalysis
Chemical Sciences
Exact sciences and technology
Metals. Metallurgy
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container_end_page 1175
container_issue 4
container_start_page 1165
container_title Acta materialia
container_volume 57
creator YAO ZHENG
CHUNMING ZHANG
RAN RAN
RUI CAI
ZONGPING SHAO
FARRUSSENG, D
description 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 cm2 at 900 deg C, respectively, when operating on wet H2 and wet CH4. Stable performance is demonstrated.
doi_str_mv 10.1016/j.actamat.2008.10.047
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subjects Applied sciences
Catalysis
Chemical Sciences
Exact sciences and technology
Metals. Metallurgy
title A new symmetric solid-oxide fuel cell with La0.8Sr0.2Sc0.2Mn0.8O3-δ perovskite oxide as both the anode and cathode
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