用于高效析氢反应的边缘富集MoSe₂/MoO₃混合电催化剂
Edge-Riched MoSe /MoO Hybrid Electrocatalyst for Efficient Hydrogen Evolution Reaction.
作者信息
Jian Chuanyong, Cai Qian, Hong Wenting, Li Jing, Liu Wei
机构信息
CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China.
University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
出版信息
Small. 2018 Mar;14(13):e1703798. doi: 10.1002/smll.201703798. Epub 2018 Feb 5.
Molybdenum diselenide (MoSe ) is widely considered as one of the most promising catalysts for the hydrogen evolution reaction (HER). However, the absence of active sites and poor conductivity of MoSe severely restrict its HER performance. By introducing a layer of MoO on Mo foil, MoSe /MoO hybrid nanosheets with an abundant edge and high electrical conductivity can be synthesized on the surface of Mo foil. Metallic MoO can improve the charge transport efficiency of MoSe /MoO , thereby enhancing the overall HER performance. MoSe /MoO exhibits fast hydrogen evolution kinetics with a small overpotential of 142 mV versus RHE at a current density of 10 mA cm and Tafel slope of 48.9 mV dec .
二硒化钼（MoSe₂）被广泛认为是析氢反应（HER）最有前景的催化剂之一。然而，MoSe₂活性位点的缺乏和导电性差严重限制了其析氢性能。通过在钼箔上引入一层MoO₃，可以在钼箔表面合成具有丰富边缘和高电导率的MoSe₂/MoO₃混合纳米片。金属性的MoO₃可以提高MoSe₂/MoO₃的电荷传输效率，从而提升整体析氢性能。MoSe₂/MoO₃在电流密度为10 mA cm⁻²时相对于可逆氢电极（RHE）具有142 mV的小过电位和48.9 mV dec⁻¹的塔菲尔斜率，展现出快速的析氢动力学。
Zotero 插件