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Straightforward fabrication of robust Fe-doped Ni3Se2 supported nickel foam as a highly efficient electrocatalyst for the oxygen evolution reaction

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Abstract

Sluggish kinetics is the major obstruction in the reaction of water splitting. Design and development of noble metal-free, active and bifunctional electrocatalysts are crucial for the oxygen evolution reaction (OER). Transition-metal selenides have been applied as OER catalyst alternatives to noble metal-based catalysts. Herein, we report that a Fe-doped Ni3Se2 film electrodeposited on a conductive three dimensional macro-porous Ni foam (NF) substrate behaves as a robust electrocatalyst for the OER in a strongly basic medium (1 M, KOH), showing good activity compared to its un-doped counterpart. This catalyst showed excellent performance, exhibiting a current density of 10 mA cm−2 at an overpotential of 225 mV and a low Tafel slope (35.3 mV dec−1), indicating an enticing prospect in the OER.

Graphical abstract: Straightforward fabrication of robust Fe-doped Ni3Se2 supported nickel foam as a highly efficient electrocatalyst for the oxygen evolution reaction

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Article information


Submitted
05 Oct 2019
Accepted
01 Dec 2019
First published
02 Dec 2019

Sustainable Energy Fuels, 2020, Advance Article
Article type
Paper

Straightforward fabrication of robust Fe-doped Ni3Se2 supported nickel foam as a highly efficient electrocatalyst for the oxygen evolution reaction

M. Ghaemmaghami, Y. Yamini, E. Saievar-Iranizad and A. Bayat, Sustainable Energy Fuels, 2020, Advance Article , DOI: 10.1039/C9SE00896A

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