Abstract
Increasing environmental pollution and shortage of conventional fossil fuels have made it urgent to de-velop renewable and clean energy sources.Electrocatalytic water splitting,with its abundant raw mate-rials,simple process,and zero carbon emission,is considered one of the most promising processes for producing carbon-neutral hydrogen which has excellent energy conversion efficiency and high gravimet-ric energy density.Among them,oxygen evolution reaction(OER)electrocatalysts and hydrogen evolution reaction(HER)electrocatalysts are critical to decreasing the intrinsic reaction energy barrier and boost-ing the hydrogen evolution efficiency.Therefore,it is imperative to develop and design low-cost,highly active,and stable OER and HER electrocatalysts to lower the overpotential and drive the electrocatalytic reactions.Transition metal sulfides,especially iron-based sulfides,have attracted extensive exploration by researchers as a result of its high abundance in the Earth's crust and near-metallic conductivity.Conse-quently,in this review,we systematically and comprehensively summarize the progress in the application of iron-based sulfides and their composites as OER and HER electrocatalysts in electrocatalysis.Detailed descriptions and illustrations of the special relationships among their composition,structure,and electro-catalytic performance are presented.Finally,this review points out the challenges and future prospects of iron-based sulfides in practical applications for designing and fabricating more promising iron-based sulfide OER and HER electrocatalysts.We believe that iron-based sulfide materials will have a wide range of application prospects as OER and HER electrocatalysts in the future.
NETL
NSTL
维普
万方数据