A facile strategy of “laser-direct-writing” to develop self-supported Ni30B70–Ti catalysts for boosted and durable alkaline oxygen evolution

A Ni 30 B 70 –Ti catalyst for seawater splitting was designed via ball milling and laser direct writing technology. The OER overpotential of Ni 30 B 70 –Ti was 370 mV at a current density of 50 mA cm −2 , 260 mV lower than that of the commercial Ni mesh.