Iron-optimized oxygen vacancy concentration to strengthen the electrocatalytic ability of the urea oxidation reaction.

Iron-modified Ni(OH) 2 /NiSe 2 enhances oxygen vacancies, expanding the electrochemically active surface area, which exhibiting superior selectivity and stability in urea oxidation reaction, outperforming pristine Ni(OH) 2 @NiSe 2 . It also demonstrates superior catalytic performance in the oxidation reactions of other small molecules.