Ultrathin MoS 2(1– x ) Se 2 x   Alloy Nanoflakes For Electrocatalytic Hydrogen Evolution Reaction

Gong, Qiufang; Cheng, Liang; Liu, Changhai; Zhang, Mei; Feng, Qingliang; Ye, Hualin; Zeng, Min; Xie, Liming; Liu, Zhuang; Li, Yanguang

doi:10.1021/cs501970w

articleACS CatalysisMar 2, 2015Closed access

Ultrathin MoS 2(1– x ) Se 2 x Alloy Nanoflakes For Electrocatalytic Hydrogen Evolution Reaction

QGQiufang Gong LCLiang Cheng CLChanghai Liu MZMei Zhang QFQingliang Feng

Soochow University · National Center for Nanoscience and Technology

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Abstract

The development of non precious metal based electrocatalysts for the hydrogen evolution reaction (HER) holds a decisive key to a spectrum of energy conversion technologies. Previous studies have established layered molybdenum chalcogenides as promising candidates. In this work, we prepared ultrathin MoS2(1–x)Se2x alloy nanoflakes with monolayer or few-layer thickness and fully tunable chemical composition for maximum HER activity. Spectroscopic characterizations corroborate the progressive evolution of their structures and properties as x increases from 0 to 1 without any noticeable phase separation. In particular, it is evidenced that the introduction of selenium continuously modulates the d band electronic…

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530

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FWCI: 21.20
Percentile: 100%
References: 45

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Topics & keywords

Topics

Keywords

Molybdenum
Alloy
Catalysis
Materials science
Electrochemistry
Monolayer
Electrocatalyst
Hydrogen

UN Sustainable Development Goals

Affordable and clean energy

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