CoP/Ni2P heteronanoparticles integrated with atomic Co/Ni dual sites for enhanced electrocatalytic performance toward hydrogen evolution

Transition metal phosphides (TMPs) have attracted considerable attention as an advanced electrocatalyst for hydrogen evolution reaction (HER). Nevertheless, the catalytic efficiency of single-component TMPs is still restricted that cannot endure long-term running and easy to be corroded especially under harsh conditions. In this work, a multicomponent combined with CoP/Ni2P heteronanoparticles Co/Ni single-atom active sites (denoted N–[email protected]/Ni2P) rational designed prepared. The obtained protected]/Ni2P electrode material exhibits enhanced performance overpotential 153 mV at 10 mA cm−2, small Tafel value 53.01 dec−1 in 0.5 M H2SO4, satisfied result basic media well. outstanding HER mainly benefiting from synergistic effect between CoP Ni2P, highly faction atomic dual sites. Furthermore, powerful conductive network fabricated by N-doped carbon skeleton in-situ grown CNTs improves conductivity catalyst. Such stereoscopic 3D nanostructure also facile accelerate shuttle electrons ions.