On the Active Surface State of Nickel-Ceria Solid Oxide Fuel Cell Anodes During Methane Electrooxidation (pages 762–769)
Vasiliki Papaefthimiou, Maxim Shishkin, Dimitris K. Niakolas, Michalis Athanasiou, Yeuk Ting Law, Rosa Arrigo, Detre Teschner, Michael Hävecker, Axel Knop-Gericke, Robert Schlögl, Tom Ziegler, Stylianos G. Neophytides and Spyridon Zafeiratos
Version of Record online: 31 JAN 2013 | DOI: 10.1002/aenm.201200727
Nickel gadolinium-doped ceria (Ni/GDC) solid oxide fuel cell (SOFC) anodes are studied in situ under methane electroxidation conditions using ambient pressure spectroscopies. The oxidation state and composition of the anode for optimal electrocatalytic performance are determined. The detailed mechanism of the voltage generation over Ni/GDC anodes is described by means of first principles calculations.