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The construction of efficient and stable non-noble metal electrocatalysts for oxygen evolution reaction (OER) is a major challenge via water splitting to make H 2 fuel. Herein, we report the hybrids of NiCo bimetallic phosphides (denoted as NixCoy-P) through a one-step phosphidation strategy derived from nanosheets NiCo metal-organic frameworks (NixCoy-BDC). The unique hierarchical porous structure, heterogeneous (Ni 2 P and Co 2 P) composition and carbon framework of the NixCoy-P hybrids were characterized by scanning electron microscope, X-ray diffraction and transmission electron microscope, which endowed handy ion diffusion path, synergistically active sites and high conductivity for OER. The as-fabricated Ni1Co1-P catalyst exhibited more excellent OER activity than other phosphides (Ni-P, Ni3Co1-P, Ni1Co3-P and Co-P). More remarkably, the Ni1Co1-P supported on Ni foam (NF) exhibits low overpotential (η 35 ) of 300 mV at a current density of 35 mA cm −2 , small Tafel slope of 71 mV dec −1 and excellent stability for OER in 1.0 M KOH solution. This work provides a general strategy to design more efficient multi-metallic component OER electrocatalysts.

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