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Multiple crystal phases of intermetallic tungsten borides and phase-dependent electrocatalytic property for hydrogen evolution

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Abstract

Four stoichiometric W–B intermetallic phases, including W2B, WB, WB2 and WB3, are synthesized, and their hydrogen-evolution electrocatalytic properties and electronic structures are investigated comparatively. The electrocatalytic activity for the hydrogen evolution reaction is found to first increase from W2B to WB2 and then decrease; and this activity trend can be rationalized based on their different degrees of hybridization between d orbitals of W and sp orbitals of B.

Graphical abstract: Multiple crystal phases of intermetallic tungsten borides and phase-dependent electrocatalytic property for hydrogen evolution

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Article information


Submitted
08 Sep 2020
Accepted
16 Oct 2020
First published
16 Oct 2020

Chem. Commun., 2020, Advance Article
Article type
Communication

Multiple crystal phases of intermetallic tungsten borides and phase-dependent electrocatalytic property for hydrogen evolution

Q. Li, L. Wang, X. Ai, H. Chen, J. Zou, G. Li and X. Zou, Chem. Commun., 2020, Advance Article , DOI: 10.1039/D0CC06072K

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