Ultrathin nanosheet materials with coexistence of crystal and amorphous interface and its application in electrolysis of water
A nanosheet, amorphous technology, applied in the fields of materials and energy, can solve the problems of destroying the metal center coordination of MOFs, difficult electrocatalysis of MOFs, and reducing the exposure of active sites, so as to promote fast charge/electron transfer, promote sufficient Exposure, the effect of promoting exposure
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Embodiment 1
[0038]The preparation process of Ni-ZIF / Ni-B-4@NF electrocatalyst is as follows:
[0039] 1) Cut out foamed nickel (1cm×2cm), use acetone, ethanol, and deionized water to ultrasonicate for 5 min respectively, and use it as a matrix after drying in an oven at 60°C.
[0040] 2) 10mL Ni(NO 3 ) 2 ·6H 2 O (580 mg) methanol solution was added to 20 mL of dimethylimidazole (660 mg) methanol solution, and the resulting solution was sonicated for 1 minute until the solution was uniformly mixed. The solution was transferred to a 50 mL reaction kettle, put into the treated nickel foam substrate, and hydrothermally reacted at 180° C. for 6 hours. Finally, the precursor obtained by the reaction was rinsed with deionized water and dried in an oven at 60°C for 12 hours.
[0041] 3) Dissolve 1.8915 g of sodium borohydride in 50 mL of deionized water, put in the precursor nickel foam, and control the boronation time to be 4 hours. After the reaction, the product was taken out, rinsed with...
Embodiment 2
[0053] In this example, the boronation time was controlled to be 2 hours, and the rest were the same as those in Example 1, and Ni-ZIF / Ni-B-2@NF electrocatalyst was prepared.
Embodiment 3
[0055] In this example, the boronation time was controlled to be 9 hours, and the rest were the same as those in Example 1, and Ni-ZIF / Ni-B-9@NF electrocatalyst was prepared.
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