A NiCo-MOF nanosheet array based electrocatalyst for the oxygen evolution reaction.

ABSTRACT: Metal organic frameworks (MOFs) are excellent materials for energy storage and conversion. This report describes 2D metal-organic framework nanosheets as an electrocatalyst for the oxygen evolution reaction (OER) under alkaline conditions. An ultrathin nanosheet array of a NiCo-metal-organic framework was grown on nickel foam (NiCo-MOF/NF) by a one-step solvothermal method. The catalytic OER of the NiCO-MOF/NF electrode was analysed by electrochemical methods. The resulting NiCO-MOF/NF exhibited a high current density (50 mA cm^-2) with an overpotential of 270 mV, a Tafel slope of 35.4 mV dec^-1 and a high turnover frequency (TOF) of 0.68 s^-1 (η = 0.27 V) towards the OER. The excellent catalytic activity of the MOF towards the OER was due to the two-di

SUBMITTER: Thangasamy P 

PROVIDER: S-EPMC9417630 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature