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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Advanced Materials for Energy Conversion and Storage VII
Presentation Title Effect of Alloying Elements (Ni, Co) on Low Pt-transition Metals Nanowires for Oxygen Reduction Electrocatalysts
Author(s) Jaeyoung Yoo, Youngtae Park, Changsoo Lee, Hyuck Mo Lee
On-Site Speaker (Planned) Hyuck Mo Lee
Abstract Scope Proton exchange membrane fuel cells (PEMFCs) are one of the most attractive sustainable energy conversion technologies, because they directly convert fuel into electricity efficiently without generating any pollutants. However, commercialization of PEMFCs is limited by the slow rate of the oxygen reduction reaction at cathodes. Large amounts of platinum catalyst are required and the high cost of platinum is problematic. To attain a competitive price, we synthesized nanowire catalysts composed of high mass activity platinum-transition metals (Ni, Co) with a facile method. It maintained the high activity even though the content of transition metals becomes higher than Pt. It showed the enhanced mass activity compared with Pt nanowire and Pt/C. The density functional theory revealed that the enhanced activity resulted from the change of reaction mechanism.
Proceedings Inclusion? Planned:

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