Issue 16, 2016

Semimetallic MoP2: an active and stable hydrogen evolution electrocatalyst over the whole pH range

Abstract

Developing efficient non-precious metal hydrogen evolution reaction (HER) electrocatalysts is a great challenge for sustainable hydrogen production from water. In this communication, for the first time, semimetallic MoP2 nanoparticle films on a metal Mo plate (MoP2 NPs/Mo) are fabricated through a facile two-step strategy. When used as a binder-free hydrogen evolution cathode, the as-prepared MoP2 NPs/Mo electrode exhibits superior HER catalytic activity at all pH values. At a current density of 10 mA cm−2, the catalyst displays overpotentials of 143, 211 and 194 mV in 0.5 M H2SO4, 1.0 M phosphate buffer solution and 1.0 M KOH, respectively. Furthermore, it exhibits excellent stability over a wide pH range. Thus, this in situ route opens up a new avenue for the fabrication of highly efficient, cost-effective and binder-free non-precious catalysts for water splitting and other electrochemical devices.

Graphical abstract: Semimetallic MoP2: an active and stable hydrogen evolution electrocatalyst over the whole pH range

Supplementary files

Article information

Article type
Communication
Submitted
29 Jan 2016
Accepted
29 Mar 2016
First published
30 Mar 2016

Nanoscale, 2016,8, 8500-8504

Semimetallic MoP2: an active and stable hydrogen evolution electrocatalyst over the whole pH range

Z. Pu, I. Saana Amiinu, M. Wang, Y. Yang and S. Mu, Nanoscale, 2016, 8, 8500 DOI: 10.1039/C6NR00820H

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