Two-dimensional black phosphorous nanosheets (BP) were prepared by liquid phase stripping method,and were further reacted with modified MoS2 to synthesize NH2-MoS2@BP by hydrothermal method.The morphology and structure of the materials were characterized by XRD,SEM and TEM,and the hydrogen evolution performance was tested by three-electrode system.The results showed that the morphology of NH2-MoS2@BP presented a lamellar structure,and the particles of BP in the catalyst were very small and evenly distributed on the surface.In 0.5mol/L H2SO4 solution,when the current density was 10 mA·cm-2,the addition of amino group reduced the hydrogen evolution overpotential of the catalyst by 20mV.The addition of BP reduced the hydrogen evolution overpotential of the catalyst by 90mV,and the Tafel slope was 95mV·dec-1,indicating that BP was beneficial to improve the catalytic performance of the modified MoS2.In addition,continuous cyclic voltammetry test exhibited that NH2-MoS2@BP had good electrocatalytic stability.
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基金资助
国家自然科学基金(21862005);贵州省科技厅计划(黔科合LH字、黔合基础、黔科合支撑、黔科合平台人才,[2017]7336、[2019]1457、[2019]2835、[2018]5769);贵州省教育厅青年科技人才成长(黔科合KY字[2018]126);中低品位磷矿及其共伴生资源高效利用国家重点实验室开发课题(WFKF2017-03)
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