title: Synthesis of few-layered MoS₂ nanosheet-coated electrospun SnO₂ nanotube heterostructures for enhanced hydrogen evolution reaction.
abstract: In this work, we report the fabrication of low crystalline, few-layered MoS₂ nanosheet-coated electrospun SnO₂ nanotube (MoS₂/SnO₂) heterostructures with three-dimensional configurations by electrospinning combined with a one-step solvothermal approach. The morphologies and compositions of the as-prepared hybrid nanotubes were characterized by field-emission scanning electron microscopy, transmission electron microscopy, ICP-AES, BET method, X-ray diffraction and X-ray photoelectron spectroscopy. Results show that SnO₂ nanotubes are uniformly covered by sheet-like MoS₂ subunits on both outer and inner surfaces. The electrocatalytic activity of MoS₂/SnO₂ heterostructures towards a hydrogen evolution reaction was examined using linear sweep voltammetry and AC impedance measurements. It is shown that the MoS₂/SnO₂ modified electrode exhibits excellent catalytic activity for hydrogen evolution with low overpotential, a small Tafel slope and high current density.
authors.affiliation: State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, P. R. China. txliu@fudan.edu.cn.
authors.forename: Yunpeng
authors.initials: Y
authors.lastname: Huang
authors.forename: Yue-E
authors.initials: YE
authors.lastname: Miao
authors.forename: Longsheng
authors.initials: L
authors.lastname: Zhang
authors.forename: Weng Weei
authors.initials: WW
authors.lastname: Tjiu
authors.forename: Jisheng
authors.initials: J
authors.lastname: Pan
authors.forename: Tianxi
authors.initials: T
authors.lastname: Liu