Self-Supported Co-VS2@MoS2 Heterostructure for Boosting Overall Water Splitting

IF 5.4 3区材料科学 Q2 CHEMISTRY, PHYSICAL

ACS Applied Energy Materials Pub Date : 2024-12-05 DOI:10.1021/acsaem.4c0246410.1021/acsaem.4c02464

Ping Yin, Ting Feng, Ting Lei* and Wen Fu,

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Abstract

It is highly desirable to develop highly effective and cost-efficient non-noble-metal electrocatalysts for water splitting. Herein, Co-doped VS₂@MoS₂ heterostructure with nanorod arrays morphology on nickel foam (Co-VS₂@MoS₂/NF) were synthesized by a facile hydrothermal method. The as-obtained Co-VS₂@MoS₂/NF heterostructure catalyst exhibits remarkably electrocatalytic activity as a bifunctional catalyst for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in 1.0 M KOH, benefiting from largely exposed edge active sites, fast electron transport, and strong electronic interactions between MoS₂ and Co-VS₂. Co-VS₂@MoS₂/NF catalyst requires an overpotential of 73.4 and 161.3 mV at a current density of 10 mA cm^–2 for HER and OER, respectively. Furthermore, the electrolyzer with Co-VS₂@MoS₂/NF as both the cathode and the anode shows a low cell voltage of 1.53 V at 10 mA cm^–2 and excellent long-term durability.

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来源期刊

ACS Applied Energy Materials Materials Science-Materials Chemistry

CiteScore

10.30

自引率

6.20%

发文量

1368

期刊介绍： ACS Applied Energy Materials is an interdisciplinary journal publishing original research covering all aspects of materials, engineering, chemistry, physics and biology relevant to energy conversion and storage. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important energy applications.