Engineering composite oxide SOFC anodes for efficient oxidation of methane

G. Kim; G. Corre; J. T. S. Irvine; J. M. Vohs; R. J. Gorte

doi:10.1149/1.2817809

Engineering composite oxide SOFC anodes for efficient oxidation of methane

G. Kim, G. Corre, J. T. S. Irvine, J. M. Vohs, R. J. Gorte

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

Abstract

Ceramic anodes for solid oxide fuel cells (SOFCs) were prepared by aqueous impregnation of nitrate salts to produce composites with 45 wt % La_0.8Sr_0.2Cr_0.5Mn_0.5O₃ (LSCM ) in a 65% porous yttria-stabilized zirconia (YSZ) scaffold. Scanning electron micrographs indicate that the LSCM coats the YSZ pores following calcination at 1473 K. Composites produced in this manner exhibit conductivities at 1073 K of approximately 1 S/cm in air and 0.1 S/cm in humidified H₂. A SOFC with a composite anode composed of 45 wt % LSCM, 0.5 wt % Pd, and 5 wt % ceria exhibited maximum power densities at 1073 K of 1.1 and 0.71 W cm^-2 in humidified (3% H₂O) H₂ and methane, respectively. (c) 2007 The Electrochemical Society.

Original language	English
Pages (from-to)	B16-B19
Number of pages	4
Journal	Electrochemical and Solid-State Letters
Volume	11
Issue number	2
Early online date	30 Nov 2007
DOIs	https://doi.org/10.1149/1.2817809
Publication status	Published - 2008

Keywords

FUEL-CELLS
PEROVSKITE ANODE
HIGH-PERFORMANCE
CERMET ANODES
CATHODES
YSZ
INFILTRATION
FABRICATION
ELECTRODES

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10.1149/1.2817809

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title = "Engineering composite oxide SOFC anodes for efficient oxidation of methane",

abstract = "Ceramic anodes for solid oxide fuel cells (SOFCs) were prepared by aqueous impregnation of nitrate salts to produce composites with 45 wt % La0.8Sr0.2Cr0.5Mn0.5O3 (LSCM ) in a 65% porous yttria-stabilized zirconia (YSZ) scaffold. Scanning electron micrographs indicate that the LSCM coats the YSZ pores following calcination at 1473 K. Composites produced in this manner exhibit conductivities at 1073 K of approximately 1 S/cm in air and 0.1 S/cm in humidified H2. A SOFC with a composite anode composed of 45 wt % LSCM, 0.5 wt % Pd, and 5 wt % ceria exhibited maximum power densities at 1073 K of 1.1 and 0.71 W cm-2 in humidified (3% H2O) H2 and methane, respectively. (c) 2007 The Electrochemical Society.",

keywords = "FUEL-CELLS, PEROVSKITE ANODE, HIGH-PERFORMANCE, CERMET ANODES, CATHODES, YSZ, INFILTRATION, FABRICATION, ELECTRODES",

author = "G. Kim and G. Corre and Irvine, {J. T. S.} and Vohs, {J. M.} and Gorte, {R. J.}",

year = "2008",

doi = "10.1149/1.2817809",

language = "English",

volume = "11",

pages = "B16--B19",

journal = "Electrochemical and Solid-State Letters",

issn = "1099-0062",

publisher = "Electrochemical Society, Inc.",

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T1 - Engineering composite oxide SOFC anodes for efficient oxidation of methane

AU - Kim, G.

AU - Corre, G.

AU - Irvine, J. T. S.

AU - Vohs, J. M.

AU - Gorte, R. J.

PY - 2008

Y1 - 2008

N2 - Ceramic anodes for solid oxide fuel cells (SOFCs) were prepared by aqueous impregnation of nitrate salts to produce composites with 45 wt % La0.8Sr0.2Cr0.5Mn0.5O3 (LSCM ) in a 65% porous yttria-stabilized zirconia (YSZ) scaffold. Scanning electron micrographs indicate that the LSCM coats the YSZ pores following calcination at 1473 K. Composites produced in this manner exhibit conductivities at 1073 K of approximately 1 S/cm in air and 0.1 S/cm in humidified H2. A SOFC with a composite anode composed of 45 wt % LSCM, 0.5 wt % Pd, and 5 wt % ceria exhibited maximum power densities at 1073 K of 1.1 and 0.71 W cm-2 in humidified (3% H2O) H2 and methane, respectively. (c) 2007 The Electrochemical Society.

AB - Ceramic anodes for solid oxide fuel cells (SOFCs) were prepared by aqueous impregnation of nitrate salts to produce composites with 45 wt % La0.8Sr0.2Cr0.5Mn0.5O3 (LSCM ) in a 65% porous yttria-stabilized zirconia (YSZ) scaffold. Scanning electron micrographs indicate that the LSCM coats the YSZ pores following calcination at 1473 K. Composites produced in this manner exhibit conductivities at 1073 K of approximately 1 S/cm in air and 0.1 S/cm in humidified H2. A SOFC with a composite anode composed of 45 wt % LSCM, 0.5 wt % Pd, and 5 wt % ceria exhibited maximum power densities at 1073 K of 1.1 and 0.71 W cm-2 in humidified (3% H2O) H2 and methane, respectively. (c) 2007 The Electrochemical Society.

KW - FUEL-CELLS

KW - PEROVSKITE ANODE

KW - HIGH-PERFORMANCE

KW - CERMET ANODES

KW - CATHODES

KW - YSZ

KW - INFILTRATION

KW - FABRICATION

KW - ELECTRODES

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U2 - 10.1149/1.2817809

DO - 10.1149/1.2817809

M3 - Article

SN - 1099-0062

VL - 11

SP - B16-B19

JO - Electrochemical and Solid-State Letters

JF - Electrochemical and Solid-State Letters

IS - 2

ER -

Engineering composite oxide SOFC anodes for efficient oxidation of methane

Abstract

Keywords

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Material for high Temp FCT EP/E064248/1: Materials for High Temperature Fuel Cell Technology

CarbonVision2 Fuel Cell Tec EP/E045421/1: Fuel Cell Technology, Enabling a Robust Clean Energy Economy

Fellowship EP/D07259X/1 Fuelling the Fut: Fuelling the future: From materials to new energy conversion systems

Cite this

Engineering composite oxide SOFC anodes for efficient oxidation of methane

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Projects

Material for high Temp FCT EP/E064248/1: Materials for High Temperature Fuel Cell Technology

CarbonVision2 Fuel Cell Tec EP/E045421/1: Fuel Cell Technology, Enabling a Robust Clean Energy Economy

Fellowship EP/D07259X/1 Fuelling the Fut: Fuelling the future: From materials to new energy conversion systems

Cite this