Ni2P with phosphorus vacancy supported Pt clusters for efficiently electrocatalytic co-production of hydrogen and value-added chemicals from methanol-water at low potential br

Low loading Pt clusters are deposited on Ni2P with phosphorus vacancy which is coated at carbon cloth (Vp-Ni2PPt/CC). And Vp-Ni2P-Pt/CC is synthesized as efficient bifunctional electrocatalysts for hydrogen evolution reaction (HER) and selective methanol oxidation reaction (MOR) at methanol-water co-electrolysis. The loading of Pt is only 12.97 mu g cm-2, and the synergistic effect with the substrate material Ni2P enables efficient MOR at low potential (0.6 V vs RHE), and the mass activity of Pt can reach 9.16 A mg-1Pt. Compared with the oxygen evolution reaction (OER) in the water electrolysis, the MOR potential is negatively shifted by 931 mV during coelectrolysis, and the energy consumption of hydrogen production is saved by 40-55%. Moreover, value-added chemicals formate is simultaneously co-generated while without CO2 emission.

Automated summary

Low loading Pt clusters are deposited on Ni2P with phosphorus vacancy which is coated at carbon cloth, forming efficient bifunctional electrocatalysts for hydrogen evolution reaction (HER) and selective methanol oxidation reaction (MOR) at methanol-water co-electrolysis. The Pt loading is only 12.97 mu g cm-2, and the synergistic effect with Ni2P substrate enables efficient MOR at low potential. The MOR potential is negatively shifted by 931 mV during co-electrolysis, saving 40-55% energy consumption for hydrogen production, while simultaneously co-generating value-added chemicals formate without CO2 emission.