Tailoring the electrocatalytic activity of bimetallic nickel-iron diselenide hollow nanochains for water oxidation

A novel Ni-Fe diselenide architecture of hollow nanochains is fabricated with a two-step hydrothermal method based on the nanoscale Kirkendall effect. When serving as an electrocatalyst for water oxidation, outstanding OER performance is achieved, being associated to the Fe/Ni active site as unveiled by theoretial calculations.257