Porous FeNi oxide nanosheets as advanced electrochemical catalysts for sustained water oxidation†
Abstract
Iron-nickel oxide porous nanosheets were synthesized via a controlled transformation from LDH precursors, which exhibit advanced OER performance with a low overpotential of 213 mV at 10 mA cm−2, small Tafel slope (32 mV dec−1) and long-term stability, due to their high specific surface area, abundant active sites, small charge transfer resistance, and suitable adsorption energy for intermediates.