Activating FeMoO nanosheet arrays by partial nickel substitution for efficient electrocatalytic seawater oxidation.

Nickel-substituted FeMoO nanosheet arrays assembled on a nickel foam skeleton are fabricated by a spontaneous redox reaction. Due to the synergistic effect of the increase of exposed active sites and improvement of electron transfer, the targeted catalyst exhibits excellent electrocatalytic performance for seawater oxidation.