Preparation method of Co(OH)<2>@CoMoO<4> composite nanosheet
A nanosheet and sheet-like technology is applied in the field of preparation of Co2@CoMoO4 composite nanosheets, which can solve the problems of complex preparation method, high preparation cost, unfavorable large-scale production, etc., and achieves simple preparation method, high specific capacity and good storage. The effect of electric charge
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Embodiment 1
[0022] Co(OH) 2 @CoMoO 4 The preparation method of composite nanosheet, comprises the steps:
[0023] S1. Treatment of foamed nickel: first, cut the foamed nickel into a sheet of 1.5cm×1cm, and ultrasonically treat the sheet-shaped nickel foam in 2.5mol / L hydrochloric acid, acetone and ethanol for 10 minutes respectively; then, use Wash with ionized water for 3 times; finally, dry the cleaned flaky nickel foam in a vacuum environment at 55°C for 10 hours, and set aside;
[0024] S2. CoMoO growth on nickel foam 4 Nanosheets: First, weigh 0.1274g of Co(NO 3 ) 2 ·6H 2 O and 0.1059g Na 2 MoO 4 2H 2 O, namely Co(NO 3 ) 2 ·6H 2 O and Na 2 MoO 4 2H 2 The ratio of the amount of O to substance is 1:1, and Co(NO 3 ) 2 ·6H 2 O and Na 2 MoO 4 2H 2 O was dissolved together in a mixed solvent of 2.5mL ethylene glycol and 15mL deionized water, and the mixed solution was obtained after stirring evenly; then, the dried flaky nickel foam was added to the mixed solution, and ...
Embodiment 2
[0027] Co(OH) 2 @CoMoO 4 The preparation method of composite nanosheet, comprises the steps:
[0028] S1. Treatment of foamed nickel: first, cut the foamed nickel into a sheet of 1.5cm×1cm, and ultrasonically treat the sheet-shaped nickel foam in 3mol / L hydrochloric acid, acetone, and ethanol for 15 minutes respectively; then, use deionized water Wash 4 times; finally, dry the cleaned flaky nickel foam in a vacuum environment at 60°C for 12 hours, and set aside;
[0029] S2. CoMoO growth on nickel foam 4 Nanosheets: First, weigh 0.2547g of Co(NO 3 ) 2 ·6H 2 O and 0.2117g Na 2 MoO 4 2H 2 O, namely Co(NO 3 ) 2 ·6H 2 O and Na 2 MoO 4 2H 2 The ratio of the amount of O to substance is 1:1, and Co(NO 3 ) 2 ·6H 2 O and Na 2 MoO 4 2H 2 Dissolve O together in a mixed solvent of 5mL ethylene glycol and 30mL deionized water, and stir to obtain a mixed solution; then, add the dried flaky nickel foam into the mixed solution, and react hydrothermally at 100°C for 4h, and c...
Embodiment 3
[0032] Co(OH) 2 @CoMoO 4 The preparation method of composite nanosheet, comprises the steps:
[0033] S1, processing foamed nickel: first, cut the foamed nickel into a sheet of 1.5cm×1cm, and respectively ultrasonically treat the sheet-shaped nickel foam in 3.5mol / L hydrochloric acid, acetone and ethanol for 15 minutes; then, use Wash with deionized water for 5 times; finally, dry the cleaned flaky nickel foam in a vacuum environment at 65°C for 14 hours, and set aside;
[0034] S2. CoMoO growth on nickel foam 4 Nanosheets: First, weigh 0.5094g of Co(NO 3 ) 2 ·6H 2 O and 0.4235g Na 2 MoO 4 2H 2 O, namely Co(NO 3 ) 2 ·6H 2 O and Na 2 MoO 4 2H 2 The ratio of the amount of O to substance is 1:1, and Co(NO 3 ) 2 ·6H 2 O and Na 2 MoO 4 2H 2 Dissolve O together in a mixed solvent of 10mL ethylene glycol and 60mL deionized water, stir evenly to obtain a mixed solution; then, add the dried flaky nickel foam into the mixed solution, and react hydrothermally at 110°C...
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