Porous N, P co-doped carbon-coated ultrafine Co2P nanoparticles derived from DNA: An electrocatalyst for highly efficient hydrogen evolution reaction

A novel freeze-drying accompanied by direct pyrolysis method was conducted to fabricate porous N, P co-doped carbon-coated ultrafine Co2P nanoparticles (Co2[email protected]) using deoxyribonucleic acid (DNA). DNA, for the first time, is used as a precursor of carbon substrate, well an in-situ source preparation Co2P. Benefiting from and carbon, Co2[email protected] shows excellent performance toward hydrogen evolution reaction (HER). Moreover, shell can successfully prevent corrosion or decomposition, it ensures good interface stability. These results may provide strategy design synthesis encapsulated metal phosphides electrocatalysts.