Electrocatalytic oxygen evolution reaction at a FeNi composite on a carbon nanofiber matrix in alkaline media

doi:10.1016/S1872-2067(14)60127-3

Abstract

Abstract:

Non-noble metals such as Fe and Ni have comparable electrocatalytic activity and stability to that of Ir and Ru in an oxygen evolution reaction (OER). In this study, we synthesized carbon nanofibers with embedded FeNi composites (FeNi-CNFs) as OER electrocatalysts by a facile route comprising electrospinning and the pyrolysis of a mixture of metal precursors and a polymer solution. FeNi-CNFs demonstrated catalytic activity and stability that were better than that of 20 wt% Ir on Vulcan carbon black in oxidizing water to produce oxygen in an alkaline media. Physicochemical and electrochemical characterization revealed that Fe and Ni had synergistic roles that enhanced OER activity by the uniform formation and widening of pores in the carbon structure, while the CNF matrix also contributed to the increased stability of the catalyst.

Key words: Oxygen evolution reaction, Carbon nanofiber, Iron, Nickel, Alkaline media

Xianghua An, Dongyoon Shin, Joey D. Ocon, Jae Kwang Lee, Young-il Son, Jaeyoung Lee. Electrocatalytic oxygen evolution reaction at a FeNi composite on a carbon nanofiber matrix in alkaline media[J]. Chinese Journal of Catalysis, 2014, 35(6): 891-895.

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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(14)60127-3

https://www.cjcatal.com/EN/Y2014/V35/I6/891

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