Carbon-incorporated porous honeycomb NiCoFe phosphide nanospheres derived from a MOF precursor for overall water splitting
Developing non-noble metal-based electrocatalysts with high catalytic activity is an urgent task for overall electrocatalytic water decomposition. In this study, carbon-incorporated porous honeycomb NiCoFe phosphide (marked as NiCoFeP/C) was successfully developed from a metal-organic framework (MOF) precursor at first time. Benefitting from the unique structure and the compositional merits, the NiCoFeP/C exhibits excellent bifunctional electrocatalytic activity for oxygen evolution reaction/hydrogen evolution reaction (OER/HER) in alkaline solution, showing low OER and HER overpotentials of 270 and 149 mV at 10 mA cm-2, respectively. This work successfully developed a MOF-derived novel multi-component transition metal phosphide with unique structure, which shed some light on the development of promising catalysts for OER/HER.