Abstract
Zero/two-dimension MXene/CoP2 was fabricated by hydrothermal and chemical vapor deposition phosphate. MXene nanosheets were employed as substrate to increase dispersion and stability of the multicomponent catalyst. The morphology of CoP2 was regulated by the addtion of Co precursor in hydrothermal process. The catalyst prepared by 40 mg MXene with 0.5 mmol Co precursor (MXene/CoP2-0.5) showed a uniform growth of CoP2 and formed aboundant reaction sites. The interfacial electron transfer between MXene and CoP2 modulated the electron structure of CoP2 and stimulated the oxygen evolution reaction (OER) activity. The optimized MXene/CoP2-0.5 exhibited the OER overpotential of 263 mV and a long-term stability over 16 h. Modulating the interfacial electron transfer of multicomponent catalysts provided a guidance for electrocatalyst design and synthesis.
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