Chain bead-shaped Cu2O-Mn3O4/NiO composite material and preparation method thereof
A cu2o-mn3o4, composite material technology, applied in the manufacture of hybrid/electric double-layer capacitors, hybrid capacitor electrodes, etc., to achieve the effect of improving stability, large capacitance, and simplifying the synthesis process
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Embodiment 1
[0027] a Cu 2 O-Mn 3 o 4 The preparation method of / NiO composite material, comprises the following steps:
[0028] (1) Weigh 2.007g of polyvinylpyrrolidone and dissolve it in a solvent of 12.003g of N,N-dimethylformamide, and stir to obtain solution A;
[0029] (2) Weigh 1.013g nickel nitrate hexahydrate and pour it into solution A, stir at room temperature for 1h to obtain mixed solution B;
[0030] (3) Weigh 0.502g manganese acetate and pour it into solution B, and stir at room temperature for 0.5h to obtain mixed solution C;
[0031] (4) Weigh 0.504g of copper acetate and pour it into solution C, and stir at room temperature for 0.5h to obtain mixed solution D;
[0032] (5) Place the mixed solution D in the syringe, and perform electrospinning at a voltage of 17kV, a flow rate of 0.2mL / h and a height of 15cm to prepare Cu-Mn / PVP nanofibers;
[0033] (6) Place the nanofibers obtained in step (5) in a porcelain boat, gradually heat from room temperature to 500°C under ai...
Embodiment 2
[0064] a Cu 2 O-Mn 3 o 4 The preparation method of / NiO composite material, comprises the following steps:
[0065] (1) Weigh 2.002g of polyvinylpyrrolidone and dissolve it in a solvent of 12.003g of N,N-dimethylformamide, and stir to obtain solution A;
[0066] (2) Weigh 2.003g nickel nitrate hexahydrate and pour it into solution A, stir at room temperature for 1h to obtain mixed solution B;
[0067] (3) Weigh 1.002g manganese acetate and pour it into solution B, and stir at room temperature for 0.5h to obtain mixed solution C;
[0068] (4) Weigh 1.005g of copper acetate and pour it into solution C, and stir at room temperature for 0.5h to obtain mixed solution D;
[0069] (5) Place the mixed solution D in the syringe, and perform electrospinning at a voltage of 15kV, a flow rate of 0.3mL / h and a height of 15cm to prepare Cu-Mn / PVP nanofibers;
[0070] (6) Place the nanofibers obtained in step (5) in a porcelain boat, gradually heat from room temperature to 500°C under ai...
Embodiment 3
[0072] a Cu 2 O-Mn 3 o 4 The preparation method of / NiO composite material, comprises the following steps:
[0073] (1) Weigh 2.002g of polyvinylpyrrolidone and dissolve it in a solvent of 12.003g of N,N-dimethylformamide, and stir to obtain solution A;
[0074] (2) Weigh 1.503g of nickel nitrate hexahydrate and pour it into solution A, stir at room temperature for 1h to obtain mixed solution B;
[0075] (3) Weigh 0.752g manganese acetate and pour it into solution B, and stir at room temperature for 0.5h to obtain mixed solution C;
[0076] (4) Weigh 0.751g of copper acetate and pour it into solution C, and stir at room temperature for 0.5h to obtain mixed solution D;
[0077] (5) Place the mixed solution D in the syringe, and perform electrospinning at a voltage of 17kV, a flow rate of 0.2mL / h and a height of 18cm to prepare Cu-Mn / PVP nanofibers;
[0078] (6) Place the nanofibers obtained in step (5) in a porcelain boat, gradually heat from room temperature to 500°C under...
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