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203. Synthesis of few-layer MoS2 nanosheet-coated electrospun SnO2 nanotube heterostructures for enhanced hydrogen evolution reaction.
作者:Y. P. Huang, Y. E. Miao, L. S. Zhang, W. W. Tjiu, J. S. Pan, T. X. Liu*
关键字:MoS2 nanosheets, electrospinning, SnO2 nanotubes, heterostructures, hydrogen evolution reaction
论文来源:期刊
具体来源:Nanoscale, 2014, 6(18), 10673-10679.
发表时间:2014年
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 asprepared 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.