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

Yao Zheng; Chunming Zhang; Ran Ran; Rui Cai; Zongping Shao; D. Farrusseng

doi:10.1016/j.actamat.2008.10.047

A new symmetric solid-oxide fuel cell with La_0.8Sr_0.2Sc_0.2Mn_0.8O_3-δ perovskite oxide as both the anode and cathode

Yao Zheng, Chunming Zhang, Ran Ran, Rui Cai, Zongping Shao, D. Farrusseng

College of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

169 Scopus citations

Abstract

A novel perovskite-type La_0.8Sr_0.2Sc_0.2Mn_0.8O₃ (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 La_0.8Sr_0.2Cr_0.5Mn_0.5O₃ (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 °C, respectively, when operating on wet H₂ and wet CH₄. Stable performance is demonstrated.

Original language	English
Pages (from-to)	1165-1175
Number of pages	11
Journal	Acta Materialia
Volume	57
Issue number	4
DOIs	https://doi.org/10.1016/j.actamat.2008.10.047
State	Published - Feb 2009

Keywords

Oxygen reduction
Perovskite
Redox stability
Solid-oxide fuel cell
Symmetrical cell

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

abstract = "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 °C, respectively, when operating on wet H2 and wet CH4. Stable performance is demonstrated.",

keywords = "Oxygen reduction, Perovskite, Redox stability, Solid-oxide fuel cell, Symmetrical cell",

author = "Yao Zheng and Chunming Zhang and Ran Ran and Rui Cai and Zongping Shao and D. Farrusseng",

year = "2009",

month = feb,

doi = "10.1016/j.actamat.2008.10.047",

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T1 - A new symmetric solid-oxide fuel cell with La0.8Sr0.2Sc0.2Mn0.8O3-δ perovskite oxide as both the anode and cathode

AU - Zheng, Yao

AU - Zhang, Chunming

AU - Ran, Ran

AU - Cai, Rui

AU - Shao, Zongping

AU - Farrusseng, D.

PY - 2009/2

Y1 - 2009/2

N2 - 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 °C, respectively, when operating on wet H2 and wet CH4. Stable performance is demonstrated.

AB - 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 °C, respectively, when operating on wet H2 and wet CH4. Stable performance is demonstrated.

KW - Oxygen reduction

KW - Perovskite

KW - Redox stability

KW - Solid-oxide fuel cell

KW - Symmetrical cell

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DO - 10.1016/j.actamat.2008.10.047

M3 - 文章

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SN - 1359-6454

VL - 57

SP - 1165

EP - 1175

JO - Acta Materialia

JF - Acta Materialia

IS - 4

ER -

A new symmetric solid-oxide fuel cell with La_0.8Sr_0.2Sc_0.2Mn_0.8O_3-δ perovskite oxide as both the anode and cathode

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