Due to the increasing energy pollution and the significant consumption of non-renewable fossil fuels,it is urgent to explore new green and clean energy carriers.Two dimensional layered double hydroxides exhibit excellent electrochemical catalytic activity in water splitting,but their poor conductivity and low specific surface area hinder further performance improvement.This work successfully constructed cobalt iron layered double hy-droxides(CoFe-LDHs)with unique morphology by hydrothermal method,and investigated the electrocatalytic performance of catalysts for water splitting in 1 mol/L KOH.An electrolyzer with CoFe-LDHs-1∶1 as both cathode and anode shows a low voltage of 1.62 V to afford the current density of 10 mA/cm2.Moreover,it is no obvious degradation was detected in the water splitting stability test.
关键词
钴铁双金属层状氢氧化物/活性位点/电催化分解水/稳定性
Key words
cobalt iron layered double hydroxides/active sites/electrocatalytic water splitting/stability