Ultrafine monolayer Co-containing layered double hydroxide nanosheets for water oxidation

Abstract For many two-dimensional (2D) materials, low coordination edges and corner sites offer greatly enhanced catalytic performance compared to basal sites, motivating the search for new synthetic approaches towards ultrathin and ultrafine 2D nanomaterials with high specific surface areas. To date, the synthesis of catalysts that are both ultrathin (monolayer) and ultrafine (lateral size O ) and unsaturated coordination sites, thereby affording outstanding electrocatalytic water oxidation performance. DFT calculations confirmed that V O on the surface of ZnCo-UF enhanced H 2 O adsorption via increasing the electropositivity of the nanosheets.