Fe-doped Ni-MOF nanosheet as well as preparation method and application thereof
A nanosheet, soluble technology, applied in electrodes, electrical components, electrolysis process, etc., can solve the problems of hindering electrocatalytic performance and poor electrical conductivity of MOFs, and achieve the effect of excellent electrocatalytic performance, improved oxygen evolution performance, and simple method.
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Embodiment 1
[0042] A preparation method of Fe-doped Ni-MOF nanosheets, comprising the following steps:
[0043] S1. Precursor NiCo-LDH nanosheets prepared by hydrothermal method
[0044] S1.1, the Co(NO 3 ) 2 ·6H2 O (0.08g, 0.275mmol), Ni (NO 3 ) 2 ·6H 2 O (0.04g, 0.1375mmol), hexamethylenetetramine (HMT, 0.234g) were dissolved in 12mL of ethylene glycol aqueous solution (the volume ratio of ethylene glycol to deionized water was 1:5), and stirred until a uniform solution to obtain solution A;
[0045] S1.2. Place nickel foam in hydrochloric acid solution and ultrasonically clean it for 20 minutes; then ultrasonically clean it with water for 4 times, each cleaning time is 5 minutes; finally use ethanol to ultrasonically clean it for 5 minutes to obtain pretreated nickel foam; among them, hydrochloric acid solution It is obtained by mixing hydrochloric acid with a mass concentration of 37% and water at a volume ratio of 1:3;
[0046] S1.3. Put a piece of S1.2 pretreated foamed nicke...
Embodiment 2
[0052] A preparation method of Fe-doped Ni-MOF nanosheets, comprising the following steps:
[0053] S1. Precursor NiCo-LDH nanosheets prepared by hydrothermal method
[0054] S1.1, the Co(NO 3 ) 2 ·6H 2 O (0.08g, 0.275mmol), Ni (NO 3 ) 2 ·6H 2 O (0.04g, 0.1375mmol), hexamethylenetetramine (HMT, 0.234g) were dissolved in 12mL of ethylene glycol aqueous solution (the volume ratio of ethylene glycol to deionized water was 1:5), and stirred until a uniform solution to obtain solution A;
[0055] S1.2. Place nickel foam in hydrochloric acid solution and ultrasonically clean it for 20 minutes; then ultrasonically clean it with water for 4 times, each cleaning time is 5 minutes; finally use ethanol to ultrasonically clean it for 5 minutes to obtain pretreated nickel foam; among them, hydrochloric acid solution It is obtained by mixing hydrochloric acid with a mass concentration of 37% and water at a volume ratio of 1:3;
[0056] S1.3. Put a piece of S1.2 pretreated foamed nic...
Embodiment 3
[0062] A preparation method of Fe-doped Ni-MOF nanosheets, comprising the following steps:
[0063] S1. Precursor NiCo-LDH nanosheets prepared by hydrothermal method
[0064] S1.1, the Co(NO 3 ) 2 ·6H 2 O (0.08g, 0.275mmol), Ni (NO 3 ) 2 ·6H 2 O (0.04g, 0.1375mmol), hexamethylenetetramine (HMT, 0.24g) were dissolved in 12mL of ethylene glycol aqueous solution (the volume ratio of ethylene glycol to deionized water was 1:5), and stirred until a uniform solution to obtain solution A;
[0065] S1.2. Place nickel foam in hydrochloric acid solution and ultrasonically clean it for 20 minutes; then ultrasonically clean it with water for 4 times, each cleaning time is 5 minutes; finally use ethanol to ultrasonically clean it for 5 minutes to obtain pretreated nickel foam; among them, hydrochloric acid solution It is obtained by mixing hydrochloric acid with a mass concentration of 37% and water at a volume ratio of 1:3;
[0066] S1.3. Put a piece of S1.2 pretreated foamed nick...
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