Pine needle-shaped nickel-cobalt-copper basic carbonate nano composite material as well as preparation method and application thereof
A nanocomposite material, carbonate technology, applied in nanotechnology, nanotechnology, hybrid/electric double layer capacitor manufacturing and other directions, can solve problems such as poor conductivity, structural instability, etc. The effect of high charge transfer rate and charge transfer efficiency
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Embodiment 1
[0039] A preparation method of pine needle-shaped nickel-cobalt-copper basic carbonate nanocomposite material activated by cyclic voltammetry, specifically comprising the following steps:
[0040] 1) Dissolve 1.8g of ammonium persulfate and 2.4g of sodium hydroxide in 40ml of deionized water and stir continuously for 20 minutes to form a uniform transparent mixed alkaline etching solution with a surface area of 4cm 2 , soak copper foam with a thickness of 1mm in the above mixture, chemically etch at 25°C for 20 minutes, wash with deionized water three times, and dry at 80°C to obtain foamed copper sheets with copper hydroxide nanorods grown;
[0041] 2) 0.58g cobalt nitrate, 0.29g nickel nitrate, 0.9g urea and 0.46g ammonium acetate were dissolved in deionized water, and stirred continuously for 20 minutes to form a uniform transparent mixed solution, and the grown copper hydroxide nanorod obtained in 1) was The foamed copper sheet was placed in the solution under hydrotherm...
Embodiment 2
[0057] A preparation method of pine needle-shaped nickel-cobalt-copper basic carbonate nanocomposite material activated by cyclic voltammetry, specifically comprising the following steps:
[0058] 1) Dissolve 1.8g of ammonium persulfate and 1.5g of sodium hydroxide in 40ml of deionized water and stir continuously for 20 minutes to form a uniform transparent mixed alkaline etching solution with a surface area of 4cm 2 , soak copper foam with a thickness of 3mm in the above mixed solution, chemically etch at 25°C for 5 minutes, wash with deionized water three times, and dry at 80°C to obtain foamed copper sheets with copper hydroxide nanorods grown;
[0059] 2) Dissolve 0.58g of cobalt nitrate, 0.29g of nickel nitrate, 1.8g of urea and 0.46g of ammonium acetate in deionized water, and stir continuously for 20 minutes to form a uniform transparent mixed solution. The grown copper hydroxide obtained by chemical etching in 1) The foamed copper sheets of nanorods were placed in th...
Embodiment 3
[0064] A preparation method of pine needle-shaped nickel-cobalt-copper basic carbonate nanocomposite material activated by cyclic voltammetry, specifically comprising the following steps:
[0065] 1) Dissolve 1.8g of ammonium persulfate and 2.8g of sodium hydroxide in 40ml of deionized water and stir continuously for 20 minutes to form a uniform transparent mixed alkaline etching solution with a surface area of 4cm 2 , foamed copper with a thickness of 1mm is immersed in the above mixture, chemically etched at 25°C for 10 minutes, washed with deionized water three times, and dried at 80°C to obtain foamed copper sheets with copper hydroxide nanorods grown;
[0066]2) Dissolve 0.29g cobalt nitrate, 0.58g nickel nitrate, 0.9g urea and 0.46g ammonium acetate in deionized water, stir continuously for 20 minutes to form a uniform and transparent mixed solution, and chemically etch the grown copper hydroxide obtained in 1) The foamed copper sheets of the nanorods are placed in the...
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