摘要
Rational design of highly efficient and durable electrocatalysts with low cost to replace noblemetal based catalysts for seawater electrolysis is extremely desirable,but challenging.In this work,we demonstrate a rapid electrodeposition method by growing P-Ni_(4)Mo on the surface of the copper foam(CF)substrate to synthesize an efficient seawater electrolysis catalyst(P-Ni_(4)Mo/CF).The catalyst exhibited considerable HER performance and stability in alkaline seawater,with the overpotential as low as 260 mV at a current density of 100 mA cm^(-2).The P-Ni_(4)Mo/CF is capable of achieving 1.0 A cm^(-2) with an overpotential of 551 mV,which is slightly worse than that of the Pt/C catalyst(453 mV).Moreover,P-Ni_(4)Mo/CF demonstrates robust durability,with almost no activity loss after the durability test for more than 200 h.This work not only reports a new catalyst for seawater electrolysis,but also presents a strategy for the performance enhancement of seawater electrolysis.
基金
supported by the Natural Science Foundation of Hainan Province (221RC1018)
the National Natural Science Foundation of China (22109034, 22109035, 52164028, 62105083)
the Opening Project of Key Laboratory of Electrochemical Energy Storage and Energy Conversion of Hainan Province (KFKT2021007)
the Foundation of State Key Laboratory of Marine Resource Utilization in South China Sea (Hainan University, Grant No. MRUKF2021029)。
