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On the Active Surface State of Nickel-Ceria Solid Oxide Fuel Cell Anodes During Methane Electrooxidation

Vasiliki Papaefthimiou, Maxim Shishkin

2013enfuel cellsmethanenickelceriaelectrooxidation

Abstract

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Fuel cells are devices that directly convert fuels into electricity, with solid oxide fuel cells (SOFCs) being particularly attractive due to their high efficiency and fuel flexibility. The objective of this study is to provide in situ experimental evidence of the active surface oxidation state and composition of nickel/gadolinium-doped ceria (Ni/GDC) anodes during methane electrooxidation using realistic solid oxide electrode assemblies. The methodology includes ambient pressure X-ray photoelectron and near edge X-ray absorption fine structure spectroscopies to analyze the oxidation state of the anodes under operating conditions. Results demonstrate that the incorporation of gadolinium-doped ceria significantly limits carbon deposition and enhances the overall performance of the SOFCs when direct feeding of hydrocarbons is employed, marking a substantial advancement in the efficiency of methane-fuelled SOFC technology. This work underscores the potential of using SOFCs fed with hydrocarbons as a viable alternative to conventional hydrogen-fed fuel cells, thereby increasing their applicability in diverse energy systems.

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Cite This Work

@article{518f3248-19b9-483b-8209-88bafce64dc9,
  title={On the Active Surface State of Nickel-Ceria Solid Oxide Fuel Cell Anodes During Methane Electrooxidation},
  author={Vasiliki Papaefthimiou and Maxim Shishkin},
  year={2013},
  language={en}
}
TY  - JOUR
TI  - On the Active Surface State of Nickel-Ceria Solid Oxide Fuel Cell Anodes During Methane Electrooxidation
AU  - Vasiliki Papaefthimiou
AU  - Maxim Shishkin
PY  - 2013
LA  - en
ER  -

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