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Carbon nanotube-doped composite electrode material and preparation method thereof

A technology of carbon nanotubes and composite electrodes, which is applied in the field of porous high specific capacitance composite electrode materials and its preparation, can solve problems such as difficulty in meeting energy needs, and achieve the effects of reducing industrial application costs, process stability, and good repeatability

Inactive Publication Date: 2019-06-25
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, many studies have been carried out on carbon materials, conductive polymers, and metal oxides. To prepare composite electrodes with high specific capacitance, it is usually necessary to have a layered porous structure, moderate crystallinity, and small chloride content. , larger active oxide content, better adhesion and larger specific surface area, supercapacitors made of a single electrode material have been difficult to meet society's demand for energy

Method used

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  • Carbon nanotube-doped composite electrode material and preparation method thereof
  • Carbon nanotube-doped composite electrode material and preparation method thereof
  • Carbon nanotube-doped composite electrode material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Select industrial pure titanium plate TA 1 with a thickness of 1 mm as the base material, cut it with a wire cutting machine to obtain a titanium plate with a size of 10 mm × 10 mm × 1 mm, and engrave it in 0.2 ~ 0.8 mol / L concentrated sulfuric acid Corrosion for 1 h to 2 h, washed with water and dried, then placed in absolute ethanol for later use.

[0028] (2) Take chloroiridic acid (H 2 IrCl 6 ·6H 2 O containing iridium 35%) and manganese chloride (MnCl 2 ) was dissolved in absolute ethanol according to the molar ratio of Ir:Mn=4:6, the solution was ultrasonically oscillated for 30 min, and mixed evenly.

[0029] (3) Take 0 mg of carbon nanotubes and add 1 ml of H 2 IrCl 6 ·6H 2 O and MnCl 2 In the mixed solution, the above solution was ultrasonicated for 30 min to make a coating solution.

[0030] (4) Take an appropriate amount of coating solution to brush the titanium plate on one side. After the coating is uniform, dry the titanium plate under an infra...

Embodiment 2

[0032] (1) Select industrial pure titanium plate TA 1 with a thickness of 1 mm as the base material, cut it with a wire cutting machine to obtain a titanium plate with a size of 10mm × 10mm × 1 mm, and engrave it in 0.2 ~ 0.8 mol / L concentrated sulfuric acid Corrosion for 1 h to 2 h, washed with water and dried, then placed in absolute ethanol for later use.

[0033] (2) Take chloroiridic acid (H 2 IrCl 6 ·6H 2 O containing iridium 35%) and manganese chloride (MnCl2 ) was dissolved in absolute ethanol according to the molar ratio of Ir:Mn=4:6, the solution was ultrasonically oscillated for 30 min, and mixed evenly.

[0034] (3) Take 2 mg of carbon nanotubes and add 1 ml of H 2 IrCl 6 ·6H 2 O and MnCl 2 In the mixed solution, the above solution was ultrasonicated for 30 min to make a coating solution.

[0035] (4) Take an appropriate amount of coating solution to brush the titanium plate on one side. After the coating is uniform, dry the titanium plate under an infrared ...

Embodiment 3

[0037] (1) Select industrial pure titanium plate TA 1 with a thickness of 1 mm as the base material, cut it with a wire cutting machine to obtain a titanium plate with a size of 10 mm × 10 mm × 1 mm, and engrave it in 0.2 ~ 0.8 mol / L concentrated sulfuric acid Corrosion for 1 h to 2 h, washed with water and dried, then placed in absolute ethanol for later use.

[0038] (2) Take chloroiridic acid (H 2 IrCl 6 ·6H 2 O containing iridium 35%) and manganese chloride (MnCl 2 ) was dissolved in absolute ethanol according to the molar ratio of Ir:Mn=4:6, the solution was ultrasonically oscillated for 30 min, and mixed evenly.

[0039] (3) Take 5 mg of carbon nanotubes and add 1ml of H 2 IrCl 6 ·6H 2 O and MnCl 2 In the mixed solution, the above solution was ultrasonicated for 30 min to make a coating solution.

[0040] (4) Take an appropriate amount of coating solution to brush the titanium plate on one side. After the coating is uniform, dry the titanium plate under an infrar...

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Abstract

The invention belongs to the technical field of supercapacitor electrode materials, and particularly relates to a porous high-specific capacitance composite electrode material for a supercapacitor anda preparation method thereof. The method particularly comprises the following steps: (1) dihydrogen hexachloroiridate (H2IrCl6.6H2O containing 35 wt% of iridium) and manganese chloride (MnCl2) are taken to be dissolved in ethanol at a certain metal molar ratio; (2) an appropriate amount of carbon nanotubes is taken to be added to a mixed solution of H2IrCl6.6H2O and MnCl2; and (3) an appropriateamount of coating is taken to perform single-sided coating on a titanium plate, and an IrO2-MnO2-CNT / Ti electrode with a different carbon nanotube content is obtained. According to the composite electrode material prepared by the invention, the capacitance performance of the electrode can be effectively improved through adding an appropriate amount of carbon nanotubes, and the capacitance performance reaches the best when the amount of carbon nanotubes added is 5 mg / ml.

Description

technical field [0001] The invention belongs to the technical field of supercapacitor electrode materials, and in particular relates to a porous high specific capacitance composite electrode material for supercapacitors and a preparation method thereof. Background technique [0002] In the 21st century, energy storage is facing important technical challenges. As a practical, efficient and new type of energy storage device, supercapacitors can provide better energy density while maintaining higher power density. Because of its long service life and environmental protection, it has attracted widespread attention. Supercapacitors have many other excellent properties - continuous charge and discharge performance, better stability and larger specific capacitance, so that supercapacitors can be used to prepare energy storage devices for new electric vehicles and solve the oil depletion that plagues mankind and other energy issues. [0003] The electrode is an important part of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/30H01G11/36H01G11/46H01G11/86
Inventor 邵艳群郭洁高嘉欣马琼琼冯珂珂张燕斌陈孔发
Owner FUZHOU UNIV
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