V-Ni3FeN/Ni-coated N-GTs full-electrolysis water electric catalyst constructed based on doping and heterojunction strategies
A technology of v-ni3fen and catalyst, applied in the direction of electrodes, electrolytic components, electrolytic process, etc., can solve the problems of high cost, low storage, hindering large-scale commercial application, etc., to improve activity, improve hydrogen evolution and oxygen evolution performance, excellent The effect of electrocatalytic performance
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[0022] The total electrocatalyst V-Ni for water splitting described in this embodiment 3 The preparation method of FeN / Ni@N-GTs comprises the following steps:
[0023] (1) Weigh 0.108mmol Na 3 VO 4 , 4 mmol NH 4 F and 8mmol CH 4 N 2 O was dissolved in 70mL of distilled water, and 2mmol of nickel nitrate and iron nitrate were weighed at a molar ratio of 5:1, dissolved in the above solution, and transferred to the reaction kettle (100ml), and the nitrogen-doped graphite grown on the graphite sheet was Immerse the graphene tube in the reactor for hydrothermal reaction, the reaction temperature is 120°C, the reaction time is 6h, then wash and dry the product to obtain the V-doped NiFe precursor supported on the nitrogen-doped graphene tube;
[0024] (2) Put the product of step (1) into a tube furnace, heat it up to 470°C at 5°C / min in an Ar atmosphere, turn off the argon gas, and at this temperature, feed ammonia gas for 2h, and cool to room temperature, Obtain the full spli...
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