首页|Core-shell heterostructure engineering of CoP nanowires coupled NiFe LDH nanosheets for highly efficient water/seawater oxidation
Core-shell heterostructure engineering of CoP nanowires coupled NiFe LDH nanosheets for highly efficient water/seawater oxidation
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维普
Searching for efficient nonprecious metal-based catalysts toward oxygen evolution reaction(OER)are of significance for seawater electrolysis.Herein,a core-shell-structured hybrid of cobalt phosphide nanowires@NiFe layered double hydroxide nanosheets grown on conductive nickel foam(CoP@NiFe LDH/NF)is prepared by a feasible approach at low temperature.The charming structure can provide numerous phosphide/hydroxide heterogenous interfaces,expose abundant active sites,and boost elec-tron/mass transfer,synergistically enhancing catalytic OER activity.When employed as an electrocatalyst toward the OER,the resultant CoP@NiFe LDH/NF only requires a small overpotential of 287 mV to pro-vide 300mA/cm2 current density as well as long-time durability in 1.0mol/L KOH seawater.The regula-tion of electronic states and surface reconstruction synergistically contribute to highly efficient seawater oxidation.This work provides an opportunity to construct efficient and inexpensive electrocatalysts for hydrogen production.
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