MoS2@CP纳米片制备及其电催化产氢性能的研究  

Preparation of MoS2@CP Nanosheets and Its Application as Electrocatalysts for Efficient Hydrogen Evolution

作　　者：刁金香[1] 王伟涛[2] 邱雨 DIAO Jinxiang;WANG Weitao;QIU Yu(School of Aviation Maintenance Engineering, Xi'an Aeronautical Polytechnic Institute, Xi'an 710089, China;College of Chemistry & Chemical Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China;Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), College of Chemistry &Materials Science, Northwest University, Xi'an 710069, China)

机构地区：[1]西安航空职业技术学院,航空维修工程学院,西安710089 [2]陕西科技大学,化学与化工学院,西安710021 [3]西北大学,化学与材料科学学院,合成与天然功能分子化学教育部重点实验室,西安710069

出　　处：《硅酸盐通报》2020年第3期957-961,共5页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金(21601144);陕西省自然科学基础研究基金(2019JM-080);西安航空职业技术学院科研处项目(18XHZH-019,18XHZH-016)。

摘　　要：MoS2由于其优越的电催化产氢性能而引起关注,由于团聚和电导性较差导致其催化性能被阻碍。研究了碳纸上垂直生长的MoS2纳米片。通过水热和高温碳化的方法合成了MoS2@CP纳米片。合成的MoS2@CP提高了MoS2电导率,减少了坍塌,从而提高了其电催化性能。MoS2@CP的塔菲尔斜率为73.74 mV/dec,起始电压为77.9 mV,电流密度为10 mA·cm^-2时的过电压为-118.6 mV,经过1000次循环,在0.5 mol/L H2SO4中,MoS2@CP具有优越的稳定性。MoS2 has attracted attention as a promising hydrogen evolution reaction(HER)catalyst.However,its catalyst activity is still hindered by its aggregation and poor intrinsic conductivity.MoS2@CP nanosheets aligned vertically on carbon paper.MoS2@CP nanosheet was formed through hydrothermal and carbonization method.MoS2@CP nanosheets have the advantage of significantly improved electrical conductivity and minimizing stacking of MoS2 nanosheets,which are minifested by their remarkably improved HER performance.The MoS2@CP nanosheet shows a Tafel slope of 73.74 mV/dec,an onset potential of 77.9 mV and an overpotential of-118.6 mV at current of 10 mA·cm^-2.The MoS2@CP nanosheets show superior stability and keep their catalystic activity for at least 1000 CV cycles for HER in 0.5 mol/L H2SO4.

关 键 词：MoS2@CP纳米片 析氢反应 电催化剂 稳定性 

分 类 号：O643.36[理学—物理化学] TQ116[理学—化学]