A smart strategy of “laser-direct-writing” to achieve scalable fabrication of self-supported MoNi 4 /Ni catalysts for efficient and durable hydrogen evolution reaction

A novel and simple “laser-direct-writing” strategy was pioneered to synthesize high-purity MoNi 4 /Ni catalysts. The laser with high energy enables a site-specific phase transition from Ni and Mo powder mixture to MoNi 4 alloys without size limitation.