Quasi-Emulsion Confined Synthesis of Edge-Rich Ultrathin MoS2 Nanosheets/Graphene Hybrid for Enhanced Hydrogen Evolution

Xuying Yin; Ya Yan; Mao Miao; Ke Zhan; Pingwei Li; Junhe Yang; Bin Zhao; Bao Yu Xia

doi:10.1002/chem.201703493

Quasi-Emulsion Confined Synthesis of Edge-Rich Ultrathin MoS₂ Nanosheets/Graphene Hybrid for Enhanced Hydrogen Evolution

Chemistry. 2018 Jan 12;24(3):556-560. doi: 10.1002/chem.201703493. Epub 2017 Nov 2.

Authors

Xuying Yin¹, Ya Yan^{1

2}, Mao Miao³, Ke Zhan¹, Pingwei Li¹, Junhe Yang^{1

2}, Bin Zhao^{1

2}, Bao Yu Xia^{3

4}

Affiliations

¹ School of Materials Science & Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Yangpu District, Shanghai, 200093, P.R. China.
² Shanghai Innovation Institute for Materials, Shanghai, 200444, P.R. China.
³ Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, 430074, P.R. China.
⁴ Shenzhen Institute of, Huazhong University of Science and Technology, Shenzhen, 518000, P.R. China.

PMID: 28925521
DOI: 10.1002/chem.201703493

Abstract

High-purity hydrogen produced by water splitting is considered as one of the most promising fuels to replace traditional fossil fuels. Developing highly efficient electrocatalysts toward hydrogen evolution is vital for the realization of large-scale H₂ generation. Glycerol is used herein in a facile solvothermal process to synthesize edge-rich ultrathin MoS₂ /reduced graphene oxide (RGO) composites. The introduction of glycerol plays an important role in the formation of such interesting structures. The MoS₂ /RGO electrocatalyst exhibits excellent hydrogen evolution reaction (HER) activity and remarkable stability, owing to the rich active edges and improved electrical conductivity of the catalyst composites. This work provides new insights to engineer the structures of MoS_x -based composites and thus achieves more active and efficient electrocatalysts.

Keywords: edga-rich; electrocatalyst; hydrogen evolution reaction; molybdenum sulfide; quasi-emulsion.