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Toward heterostructured transition metal hybrids with highly promoted electrochemical hydrogen evolution.

ABSTRACT: It is essential to precisely develop low-cost and sustainable electrocatalysts for the hydrogen evolution reaction. Herein, we explore a robust and controllable hydrothermal approach to synthesize defect-rich MoS₂ nanoflakes on exfoliated MoS₂ and WS₂. Such well-designed hetero-structural hybrids of MoS₂/exfoliated MoS₂ and MoS₂/exfoliated WS₂ exhibit dramatically promoted electrochemical activity and high stability. The as-grown MoS₂ nanoflakes hybridized on exfoliated MoS₂ and WS₂ generate abundant active edge sites (rich in basal defects) and unsaturated sulfur atoms, resulting in highly enhanced electrocatalytic performance. This is expected to pave the way towards a significant improvement in transition metal dichalcogenide heterostructures as electrocatalysts.

SUBMITTER: Gao G

PROVIDER: S-EPMC9065390 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature

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Toward heterostructured transition metal hybrids with highly promoted electrochemical hydrogen evolution.

Gao Guanhui G Xie Xiaobin X Kang Shendong S Lei Yanhua Y Trampert Achim A Cai Lintao L

RSC advances 20190625 35

It is essential to precisely develop low-cost and sustainable electrocatalysts for the hydrogen evolution reaction. Herein, we explore a robust and controllable hydrothermal approach to synthesize defect-rich MoS2 nanoflakes on exfoliated MoS2 and WS2. Such well-designed hetero-structural hybrids of MoS2/exfoliated MoS2 and MoS2/exfoliated WS2 exhibit dramatically promoted electrochemical activity and high stability. Th ...[more]

PMID: 35514720

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