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Investigating the CH4 reaction pathway on a novel LSCF anode catalyst in the SOFC

Paper ID Volume ID Publish Year Pages File Format Full-Text
51428 46843 2009 5 PDF Available
Title
Investigating the CH4 reaction pathway on a novel LSCF anode catalyst in the SOFC
Abstract

For the first time, the perovskite lanthanum strontium cobalt ferrite (LSCF) is demonstrated to exhibit catalytic activity for the direct electrochemical oxidation of CH4 in a solid oxide fuel cell (SOFC) anode environment for more than 72 h with a steady state flow of CH4 at 900 °C, producing a maximum of 186 W/cm2. Results of the transient response studies suggested that the electrochemical oxidation of CH4 on the anode produced electricity, H2O, and CO2 via (i) CH4 decomposition, (ii) electrochemical oxidation of hydrogen to H2O, and (iii) electrochemical oxidation of carbon to CO2. The formation of CO2 and CO takes place in a parallel pathway: C + 2O2− → CO2; C + O2− → CO; where the intrinsic rate constant for the formation of CO2 is greater than that of CO.

Keywords
SOFC; CH4; Methane; LSCF; Fuel cell; Perovskite
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Investigating the CH4 reaction pathway on a novel LSCF anode catalyst in the SOFC
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 6, 15 February 2009, Pages 772–776
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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