Au atoms modified CoSe2 nanobelt as well as preparation method and application thereof

The invention discloses an Au atoms modified CoSe2 nanobelt. The nanobelt has a two dimension layered structure, the interlayer spacing is 1.0nm, and average width is 40-500nm. Monodispersed Au atoms are uniformly distributed on the surface of the CoSe2 nanobelt. The invention also discloses a preparation method of the Au atoms modified CoSe2 nanobelt. The method comprises the following steps: an aqueous solution of chloroauric acid is dropwisely added into an ethanol solution of the CoSe2 nanobelt, stirring is carried out continuously in the dropping process, and a solution of Au atoms modified CoSe2 nanobelt is obtained; the solution of Au atoms modified CoSe2 nanobelt is centrifuged, washed and dried, and the Au atoms modified CoSe2 nanobelt is obtained. The invention also discloses an application of the Au atoms modified CoSe2 nanobelt to a reaction process of oxygen evolution by electrolysis of water as a catalyst. 本发明公开了种Au原子修饰的CoSe纳米带，其为二维层状结构，其层间距为1.0nm，平均宽度为40-500nm。单分散的Au原子在所述CoSe纳米带表面均匀分布。本发明还公开了上述