A nickel-based core-shell structure nico 2 o 4 /The preparation method of polyaniline nano material
A nanomaterial, core-shell structure technology, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problem of weakening the performance of active materials, and achieve the effects of low cost, excellent performance and simple preparation
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Embodiment 1
[0022] A nickel-based core-shell structure NiCo 2 o 4 The preparation method of / polyaniline nanometer material comprises the steps:
[0023] 1) Take CoCl 2 ·6H 2 O, NiCl 2 ·6H 2 O, CO (NH 2 ) 2 , NH 4 The molar ratio of F is 2:1:3:3, and add deionized water to stir and dissolve, then add foamed nickel and the above solution into a polytetrafluoroethylene-lined reactor, heat at 100°C for 10 hours, and then put The foamed nickel is taken out, rinsed and dried, and then the foamed nickel is annealed at 300°C for 2 hours to obtain the product nickel-based NiCo 2 o 4 nanomaterials;
[0024] 2) Prepare 100ml HCl solution, add oxidizing agent (NH 4 ) 2 S 2 o 8 , after magnetic stirring at 0°C for 10 min, 1ml of aniline was added dropwise to the above solution, and magnetic stirring was continued at 0°C for 2 h; HCl, (NH 4 ) 2 S 2 o 8 The molar ratio with aniline is 1:1:1;
[0025] 3) Take the nickel-based NiCo product in step 1) 2 o 4 The nanomaterial is added to...
Embodiment 2
[0028] A nickel-based core-shell structure NiCo 2 o 4 The preparation method of / polyaniline nanometer material comprises the steps:
[0029] 1) Take CoCl 2 ·6H 2 O, NiCl 2 ·6H 2 O, CO (NH 2 ) 2 , NH 4 The molar ratio of F is 2:1:3:9, add deionized water and stir to dissolve, then add the nickel foam and the above solution into a polytetrafluoroethylene-lined reaction kettle, heat at 150°C for 6 hours, and then put The foamed nickel is taken out, rinsed and dried, and then the foamed nickel is annealed at 400°C for 2 hours to obtain the product nickel-based NiCo 2 o 4 nanomaterials;
[0030] 2) Prepare 100ml HCl solution, add oxidizing agent (NH 4 ) 2 S 2 o 8 , after magnetic stirring at 0°C for 30min, 1ml of aniline was added dropwise to the above solution, and continued magnetic stirring at 0°C for 2h; HCl, (NH 4 ) 2S 2 o 8 The molar ratio with aniline is 10:1:1;
[0031] 3) Take the nickel-based NiCo product in step 1) 2 o 4 The nanomaterial is added to ...
Embodiment 3
[0034] A nickel-based core-shell structure NiCo 2 o 4 The preparation method of / polyaniline nanometer material comprises the steps:
[0035] 1) Take CoCl 2 ·6H 2 O, NiCl 2 ·6H 2 O, CO (NH 2 ) 2 , NH 4 The molar ratio of F is 2:1:3:6, and add deionized water to stir and dissolve, then add the nickel foam and the above solution into a polytetrafluoroethylene-lined reactor, heat at 130°C for 8 hours, and then put The foamed nickel is taken out, rinsed and dried, and then the foamed nickel is annealed at 500°C for 2 hours to obtain the product nickel-based NiCo 2 o 4 nanomaterials;
[0036] 2) Prepare 100ml HCl solution, add oxidizing agent (NH 4 ) 2 S 2 o 8 , after magnetic stirring at 0°C for 30min, add 1ml of aniline dropwise to the above solution, and continue magnetic stirring at 0°C for 2h; HCl, (NH 4 ) 2 S 2 o 8 The molar ratio with aniline is 5:1:1;
[0037] 3) Take the nickel-based NiCo product in step 1) 2 o 4 The nanomaterial is added to the solutio...
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