A high-efficiency oxygen evolution electrode material of a carbon material containing a NiCo bimetal.

ABSTRACT: The preparation of highly efficient, stable, and low-cost electrocatalysts for the oxygen evolution reaction (OER) and the hydrogen evolution reaction (HER) is still a challenge for the development of new energy systems. In this work, a NiCo bimetal loaded on porous carbon (NiCo-C/NF) grown on nickel foam (NF) was obtained via the pyrolysis of a NiCo bimetal MOF (NiCo-MOF/NF) under a nitrogen atmosphere at 500 °C. Compared with NiCo-MOF/NF, NiCo-C/NF had a larger specific surface and uniform mesoporous structure. As an electrocatalyst in the OER, this new type of electrode operated with better stability in an alkaline solution (1.0 mol L^-1 KOH), the overpotential when the current density reached 10 mA cm^-2 was only 260 mV, and the electrode also exhibited long-

SUBMITTER: Guan H 

PROVIDER: S-EPMC9030871 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature