Hollow silkworm cocoon-shaped porous nickel oxide nano material and preparation method thereof
A nanomaterial, nickel oxide technology, applied in nickel oxide/nickel hydroxide, nanotechnology, chemical industry and other directions, can solve the problem of no hollow cocoon-shaped nickel oxide nanostructure, etc., and achieve easy availability of raw materials, uniform size, Simple to use effects
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Embodiment 1
[0026] The hollow silkworm cocoon-like porous nickel oxide nanomaterial of the present invention is prepared by a microwave synthesis-thermal decomposition two-step method, and its specific process flow is as follows:
[0027] (1) Weigh 1mmol nickel chloride hexahydrate (NiCl 2 ·6H 2 O) In a 100 ml beaker, add 50 ml of deionized water, after stirring and dissolving, add 0.15 mL of hydrazine hydrate (N 2 h 4 ·H 2 O, 85%);
[0028] (2) Weigh 2mmol oxalamine (NH 4 ) 2 C 2 o 4 added to the above solution;
[0029] (3) Continue to stir the reaction mixture for 10 minutes, cover the mouth of the cup with a polyethylene film, place it in a microwave oven, and heat it for 10 minutes on a low heat;
[0030] (4) Naturally cool to room temperature, let stand overnight, filter the precipitate, wash with deionized water and absolute ethanol for 3 to 5 times respectively, place the precipitate in a vacuum drying oven and heat for 6 hours at 60°C;
[0031] (5) Put the dried blue pr...
Embodiment 2
[0036] The hollow silkworm cocoon-like porous nickel oxide nanomaterial of the present invention is prepared by a microwave synthesis-thermal decomposition two-step method, and its specific process flow is as follows:
[0037] (1) Weigh 1mmol nickel chloride hexahydrate (NiCl 2 ·6H 2 O) In a 100 ml beaker, add 50 ml of deionized water, after stirring and dissolving, add 0.10 mL of hydrazine hydrate (N 2 h 4 ·H 2 O, 85%);
[0038] (2) Weigh 2mmol oxalamine (NH 4 ) 2 C 2 o 4 added to the above solution;
[0039](3) Continue to stir the reaction mixture for 15 minutes, cover the mouth of the cup with a polyethylene film, place it in a microwave oven, and heat it for 8 minutes on a low heat;
[0040] (4) Naturally cool to room temperature, let stand overnight, filter the precipitate, wash with deionized water and absolute ethanol 3 to 5 times respectively, place the precipitate in a vacuum drying oven and heat for 8 hours at a temperature of 50°C;
[0041] (5) Put the dr...
Embodiment 3
[0044] The hollow silkworm cocoon-like porous nickel oxide nanomaterial of the present invention is prepared by a microwave synthesis-thermal decomposition two-step method, and its specific process flow is as follows:
[0045] (1) Weigh 1mmol nickel chloride hexahydrate (NiCl 2 ·6H 2 O) into a 100 ml beaker, add 50 ml of deionized water, after stirring and dissolving, add 0.20 ml of hydrazine hydrate (N 2 h 4 ·H 2 O, 85%);
[0046] (2) Weigh 2mmol oxalamine (NH 4 ) 2 C 2 o 4 added to the above solution;
[0047] (3) Continue to stir the reaction mixture for 10 minutes, cover the mouth of the cup with a polyethylene film, place it in a microwave oven, and heat it for 8 minutes on a low heat;
[0048] (4) Naturally cool to room temperature, let stand overnight, filter the precipitate, wash with deionized water and absolute ethanol for 3 to 5 times respectively, place the precipitate in a vacuum drying oven and heat for 10 hours at a temperature of 50°C;
[0049] (5) Pu...
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