摘要
Seawater electrolysis holds great promise for hydrogen production in the future,while the development of anodic catalysts has been severely hampered by the side-reaction,chloride evolution reaction.In this work,nano-flower-cluster structured Coo@FeSe_(2)/CF catalysts are synthesized via a scalable electrodeposition technique,and the performance is systematically studied.The oxygen evolution reaction(OER)overpotential of Co0@FeSe_(2)/CF is 267 mV at 100 mA.cm^(-2),which is significantly lower than that of the IrO_(2) catalyst(435 mV).Additionally,the catalyst shows high selectivity for OER(97.9%)and almost no loss of activity after a durability test for 1100 h.The impressive performance is attributed to the dense rod-like structure with abundant active centers after electrochemical activation and the in-situ generated CoOOH and FeOOH that improve the catalytic activity of the catalyst.The synergistic effect induced bythenon-uniform structureendows the catalyst with excellent stability.
基金
supported by the Hainan Provincial Natural Science Foundation(222RC548,222RC554)
the National Natural Science Foundation of China(22109034,22109035,52164028,62105083)
the specific research fund of the Innovation Platform for Academicians of Hainan Province,the Start-up Research Foundation of Hainan University(KYQD(ZR)-20008,20082,20083,20084,21065,21124,21125)
the Innovative Research Projects for Graduate Students of Hainan Province(Qhyb2022-86).
