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Issue 5, 2018
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Interface engineering of a CeO2–Cu3P nanoarray for efficient alkaline hydrogen evolution

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Abstract

It is of great importance to design and develop highly active electrocatalysts for the hydrogen evolution reaction (HER) under alkaline conditions. In this work, we report the development of a CeO2–Cu3P nanoarray supported on nickel foam (CeO2–Cu3P/NF) as an excellent HER catalyst with the demand of an overpotential of only 148 mV to deliver a geometrical catalytic current density of 20 mA cm−2 in 1.0 M KOH. Remarkably, this catalyst also shows strong long-term electrochemical durability for at least 100 h with nearly 100% Faradaic efficiency. Density functional theory calculations reveal that the CeO2–Cu3P/NF hybrid has a lower water dissociation energy and a more thermo-neutral hydrogen adsorption free energy.

Graphical abstract: Interface engineering of a CeO2–Cu3P nanoarray for efficient alkaline hydrogen evolution

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Supplementary files

Article information


Submitted
14 Nov 2017
Accepted
26 Dec 2017
First published
27 Dec 2017

Nanoscale, 2018,10, 2213-2217
Article type
Communication

Interface engineering of a CeO2–Cu3P nanoarray for efficient alkaline hydrogen evolution

Z. Wang, H. Du, Z. Liu, H. Wang, A. M. Asiri and X. Sun, Nanoscale, 2018, 10, 2213
DOI: 10.1039/C7NR08472B

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