A kind of supercapacitor electrode material, preparation method and application
A technology for supercapacitors and electrode materials, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double layer capacitors. Capacitive performance, the effect of excellent specific capacitance
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Embodiment 1
[0032] The preparation method of the present embodiment 1 metal hydroxide film material comprises the following steps:
[0033] Accurately weigh 1 mmol of NiCl 2 ·6H 2 O, add 25mL of water, put in a magnet and stir at room temperature for 10min, until the NiCl 2 ·6H 2 After O was completely dissolved, 9 mmol of triethanolamine was added dropwise, and after stirring for 20 min, the obtained mixture was transferred to a 50 mL stainless steel reactor for hydrothermal reaction. The hydrothermal temperature was 180 °C and the hydrothermal time was 12 h. After the reaction, it was taken out and cooled to room temperature, washed by centrifugation, and vacuum-dried at 60° C. for 12 hours to obtain a metal hydroxide thin film material.
Embodiment 2
[0035] The preparation method of the present embodiment 2 metal hydroxide film material comprises the following steps:
[0036] Accurately weigh 1 mmol of NiCl 2 ·6H 2 O, add 25mL of water, put in a magnet and stir at room temperature for 10min, until the NiCl 2 ·6H 2 After O was completely dissolved, 12 mmol of triethanolamine was added dropwise, and after stirring for 20 min, the obtained mixture was transferred to a 50 mL stainless steel reactor for hydrothermal reaction. The hydrothermal temperature was 180 °C and the hydrothermal time was 12 h. After the reaction, it was taken out and cooled to room temperature, washed by centrifugation, and vacuum-dried at 60° C. for 12 hours to obtain a metal hydroxide thin film material.
Embodiment 3
[0038] The preparation method of the present embodiment 3 metal hydroxide film material, comprises the following steps:
[0039] Accurately weigh 1 mmol of NiCl 2 ·6H 2 O, add 25mL of water, put in a magnet and stir at room temperature for 10min, until the NiCl 2 ·6H 2 After O was completely dissolved, 9 mmol of triethanolamine was added dropwise, and after stirring for 20 min, the obtained mixture was transferred to a 50 mL stainless steel reactor for hydrothermal reaction. The hydrothermal temperature was 180 °C and the hydrothermal time was 8 h. After the reaction, it was taken out and cooled to room temperature, washed by centrifugation, and vacuum-dried at 60° C. for 12 hours to obtain a metal hydroxide thin film material.
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