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Nanomaterials 2017, 7(12), 433; doi:10.3390/nano7120433

Self-Supported Ni(P, O)x·MoOx Nanowire Array on Nickel Foam as an Efficient and Durable Electrocatalyst for Alkaline Hydrogen Evolution

1
State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Lab of Graphene (NPU), Xi’an 710072, China
2
Department of Mechanical Engineering, University of Delaware, Newark, DE 19716, USA
*
Authors to whom correspondence should be addressed.
Received: 31 October 2017 / Revised: 24 November 2017 / Accepted: 28 November 2017 / Published: 6 December 2017
(This article belongs to the Special Issue Nanomaterials Based Fuel Cells and Supercapacitors)
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Abstract

Earth-abundant and low-cost catalysts with excellent electrocatalytic hydrogen evolution reaction (HER) activity in alkaline solution play an important role in the sustainable production of hydrogen energy. In this work, a catalyst of Ni(P, O)x·MoOx nanowire array on nickel foam has been prepared via a facile route for efficient alkaline HER. Benefiting from the collaborative advantages of Ni(P, O)x and amorphous MoOx, as well as three-dimensional porous conductive nickel scaffold, the hybrid electrocatalyst shows high catalytic activity in 1 M KOH aqueous solution, including a small overpotential of 59 mV at 10 mA cm−2, a low Tafel slope of 54 mV dec-1, and excellent cycling stability. View Full-Text
Keywords: Ni(P, O)x·MoOx nanowire array; synergistic effect; electrocatalyst; alkaline hydrogen evolution reaction Ni(P, O)x·MoOx nanowire array; synergistic effect; electrocatalyst; alkaline hydrogen evolution reaction
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Hua, W.; Liu, H.; Wang, J.-G.; Wei, B. Self-Supported Ni(P, O)x·MoOx Nanowire Array on Nickel Foam as an Efficient and Durable Electrocatalyst for Alkaline Hydrogen Evolution. Nanomaterials 2017, 7, 433.

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