Title: The Mechanism of Ammonia Oxidation at Ni-Fe-SDC Anode in Ammonia-Fueled SOFCs
Abstract: The mechanism for ammonia oxidation at Ni-Fe alloy/Sm-doped ceria (SDC) anode cermet was investigated under SOFC operating conditions in the temperature range of 973 to 1173 K. OCV and AC impedance analysis revealed that ammonia is directly oxidized at Ni-Fe/SDC anode, especially at lower temperatures. It was also found that the activity is determined by a balance between ammonia adsorption and nitrogen desorption on the catalyst, and the synergy effects of Ni and Fe improved the activity of Ni-Fe alloy catalysts for ammonia oxidation.
Publication Year: 2013
Publication Date: 2013-10-06
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 7
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