Iridium monatomic modified cobalt hydroxide nanosheet as well as preparation method and application thereof

The invention belongs to the technical field of catalyst materials, and particularly relates to an iridium monatomic modified cobalt hydroxide nanosheet and a preparation method and application thereof.The method comprises the steps that an amorphous cobalt hydroxide nanosheet serves as a precursor and is evenly dispersed in a water solvent A, and a solution A is obtained; adding an iridium source into the solution A, and uniformly mixing to obtain a solution B; the solution B is subjected to ultraviolet irradiation treatment, metal iridium is loaded on the amorphous cobalt hydroxide nanosheets in a monatomic form, and a mixture A is obtained; carrying out solid-liquid separation on the mixture A to obtain a solid component A, and sequentially carrying out washing treatment and freeze drying treatment on the solid component A to obtain the cobalt hydroxide nanosheet modified by the iridium monatomic. The method is simple to operate, mild in reaction condition, capable of realizing mass synthesis, energy-savin