title: Easy incorporation of single-walled carbon nanotubes into two-dimensional MoS₂ for high-performance hydrogen evolution.
abstract: The limited intrinsic conductivity of two-dimensional (2D) MoS₂ nanosheets compromises its high electrocatalytic performance. In this work, we develop a facile method of simply dispersing MoS₂ nanosheets into a water-isopropanol solution of high-conducting single-walled carbon nanotubes (SWCNTs) for preparation of MoS₂/SWCNT composites. The SWCNTs in the hybrid system serve as effective electron transport channels among 2D MoS₂ nanosheets and facilitate charge transfer at the catalyst-electrolyte interface. We investigated the influence of SWCNTs ratios on the catalytic activities and obtained a high-performance hybrid catalyst with a low Tafel slope of 40.82 mV/decade and prominent electrochemical durability. The demonstration of our hybrid electrocatalytic system, with its scalable capacity for facile preparation, provides a new pathway to enhance HER activity.
authors.affiliation: State Key Laboratory of Silicon Materials, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Cai
authors.forename: Xi
authors.initials: X
authors.lastname: Yang
authors.forename: Tao
authors.initials: T
authors.lastname: Liang
authors.forename: Lu
authors.initials: L
authors.lastname: Dai
authors.forename: Lin
authors.initials: L
authors.lastname: Ma
authors.forename: Guowei
authors.initials: G
authors.lastname: Huang
authors.forename: Weixiang
authors.initials: W
authors.lastname: Chen
authors.forename: Hongzheng
authors.initials: H
authors.lastname: Chen
authors.forename: Huanxing
authors.initials: H
authors.lastname: Su
authors.forename: Mingsheng
authors.initials: M
authors.lastname: Xu
mesh_terms: D002384:Catalysis; D004220:Disulfides / Q000737:chemistry*; D004563:Electrochemistry; D006801:Humans; D006859:Hydrogen / Q000737:chemistry*; D008982:Molybdenum / Q000737:chemistry*; D037742:Nanotubes, Carbon / Q000737:chemistry*
chemical_list: D004220:Disulfides; D037742:Nanotubes, Carbon; D006859:Hydrogen; D008982:Molybdenum; C082964:molybdenum disulfide