3 years ago

CH4 internal dry reforming over a Ni/YSZ/ScSZ anode catalyst in a SOFC: A transient kinetic study

CH4 internal dry reforming over a Ni/YSZ/ScSZ anode catalyst in a SOFC: A transient kinetic study
We used a transient kinetic technique, which involves a step-switching of the reactant flows, to identify the reaction pathways on the Ni anode catalysts of SOFCs utilizing CH4/CO2 and CH4 as fuels. Carbon deposited at the external layer of the Ni anode support in CH4-SOFC. The transient response revealed that carbon deposition, which occurred with CH4 as a fuel molecule, was suppressed and dominated by the dry reforming of CH4/CO2 to CO/H2 and the electrochemical oxidization of CO/H2. Electricity generation from the electrochemical oxidation reactions is governed by Faraday resistance at the anode Ni catalyst interlayer.

Publisher URL: www.sciencedirect.com/science

DOI: S1566736717303679

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