An ingeniously assembled metal organic framework on the surface of FeMn co doped Ni(OH)2 as a high efficiency electrocatalyst for the oxygen evolution reaction.
To overcome the problem of the sluggish kinetics of the oxygen evolution reaction (OER) it is of great significance to develop an efficient and stable non noble metal based OER catalyst for electrocatalytic energy conversion and storage. Herein, a complex of a metal organic framework and hydroxide is synthesized by performing a ligand etching strategy on FeMn co doped Ni(OH)2 nanosheets in situ grown on nickel foam (FeMn Ni(OH)2@MOF/NF) Benefiting from the unique sheet on sheet hierarchical structure, multi metal active nodes and two active materials grown in situ, the resulting FeMn Ni(OH)2@MOF/NF demonstrated brilliant OER activity with an overpotential of 199 mV to achieve a current density of 10 mA cm 2 and long term stability. This research will provide a new strategy for the design of high performance OER electrocatalysts.
Dalton transactions