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CoFe-B-P Nanoparticles:Preparation and Electrochemical Oxygen Evolution Performance
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    Abstract:

    In the present work,CoFe-B-P nanoparticles were prepared by solvothermal method and investi? gated their oxygen evolution reaction(OER)performance were investigated. The morphologic structures and composi? tion of the resultant samples were characterized by SEM,TEM,XRD,XPS,and ICP-OES. It was found when the mo? lar ratio of Co and Fe is 4,and the addition amount of NaH2PO2·H2O is 2.0 mmol,the resultant Co4Fe1-B-P catalyst exhibited the best OER performance with a low over-potential of 285 mV at a current density of 10 mA cm?2 and a small Tafel slope of 52.70 mV/dec,as well as excellent long-term stability in 1.0 M KOH after continue testing 20 h. The improved OER activity benefits from the electronic interaction between transition metal and nonmetal.

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  • Received:
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  • Online: June 23,2022
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