Abstract
We show that Sn/Ni alloy anode electrocatalysts (0.5–1 wt % nominal loading of Sn with respect to Ni) exhibit improved tolerance to carbon-induced deactivation in the internal utilization of hydrocarbon fuels on solid oxide fuel cells (SOFCs) compared to conventional monometallic Ni electrocatalysts. The Sn/Ni electrocatalysts were tested in the direct electrochemical oxidation of methane and isooctane. It was observed that the electrochemical activity and electronic conductivity of Ni were not compromised significantly by introduction of Sn. We postulate that the improved carbon tolerance of Sn/Ni compared to monometallic Ni electrocatalysts is due to the formation of Sn/Ni surface alloys, which, unlike monometallic Ni, preferentially oxidize carbon atoms and fragments, removing these from the surface of the electrocatalyst rather than forming carbon–carbon bonds.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
