Study on preparation and properties of Ru-FeOOH@NiFe LDH nanosheets for electrocatalytic hydrogen evolution
The development of hydrogen production technology by electrolytic water is important to promote the low-carbon development,among which the design of efficient and stable catalysts is essential.Ru-FeOOH@NiFe LDH catalyst was synthesized on nickel foam substrate by one-step hydrothermal method and characterized by SEM,TEM,XRD and XPS.The results show that the introduction of Ru can adjust the electronic structure of the catalyst,improve the interaction between metal and supports,and the catalyst shows better electrocatalytic performance.The required overpotential of Ru-FeOOH@NiFe LDH is 95 mV at the current density of 10 mA/cm2 with a low Tafel slope of 80.6 mV/dec,which indicates that the electrocatalytic performance of Ru-FeOOH@NiFe LDH is better than that of FeOOH@NiFe LDH.Ru-FeOOH@NiFe LDH can catalyze the reaction stably for 15 h under the same reaction conditions.
water electrolysishydrogen evolution reactionelectrocatalystNiFe layered double hydroxide
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