▎ 摘　　要

Rationally designing highly efficient, stable and earth-abundant electrocatalysts plays a leading role for hydrogen evolution reaction (HER) from water splitting but is still challenging. The development of well-defined transition metal-based nanostructures for enhancing the HER activity and stability has sparked great interests in electrocatalysis. Herein, we report the in-situ synthesis of novel hybrid nanoarchitectures of Ni-doped MoP/reduced graphene oxide (NM/rGO) for high-performance electrocatalysis toward HER. Under the dual regulation on the composition and the interfacial interactions, the well-organized 0D/2D nanohybrids exhibited better electrocatalytic activity and enhanced stability for HER than those of Ni-doped MoP nanoparticles. The optimal hybrid electrocatalyst (NM/rGO-2:1) showed an overpotential of 122 mV at current density of 10 mA cm(-2) and its corresponding Tafel slope was 71.4 mV dec(-1) in alkaline electrolyte. The synergy of well-dispersed Ni-MoP nanoparticles with smaller sizes and highly conductive rGO nanosheets resulted in rich active catalytic sites that remarkably boosted electrocatalytic HER performance. This work may broaden the possibility of exploiting a new family of non-precious metal-based electrocatalysts toward HER.