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Polyaniline nanometer tube array/graphene composite material electrode and manufacturing method and application thereof

A technology of nanotube arrays and composite materials, applied in the field of new energy products, can solve the problems of limited use conditions, safety problems, unsafe behaviors, etc. Effect

Active Publication Date: 2015-12-30
南京绿索电子科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In addition, the traditional water-based supercapacitors are greatly restricted due to their low voltage defects. Compared with water-based supercapacitors, supercapacitors using organic electrolytes have higher operating voltages and are widely accepted. attention, but the application of organic electrolytes in this type of supercapacitor also brings about related safety issues, that is, in abnormal conditions (such as impact, extrusion, abnormal discharge and other extreme environments), unsafe conditions such as combustion may occur. safe behavior

Method used

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  • Polyaniline nanometer tube array/graphene composite material electrode and manufacturing method and application thereof

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preparation example Construction

[0030] A preparation method of a polyaniline nanotube array / graphene composite electrode, comprising the following steps:

[0031] Step 1, preparing graphene oxide-doped polyaniline nanotube arrays: uniformly disperse graphene oxide in aniline sulfuric acid solution, then immerse the AAO template in the above solution, vacuumize under reduced pressure, and ultrasonically vibrate; The solution is slowly added dropwise into the sulfuric acid solution of aniline, reacted in a constant temperature water bath at -20-20°C for 1-24h, and the graphene oxide-doped polyaniline / AAO nanocomposite structure is obtained; the graphene oxide-doped polyaniline / AAO nanocomposite structure is invaded In sodium hydroxide solution, heat at 50-70° C. for 10-60 minutes, take it out, wash it with deionized water, and dry it to prepare a graphene oxide-doped polyaniline nanotube array. Wherein, the mass ratio of graphene oxide to aniline is 1:4-19; the molar ratio of the aniline to ammonium persulfate...

Embodiment 1

[0037] (1) Preparation of graphene oxide doped polyaniline nanotube arrays:

[0038] Disperse 0.025g of graphene oxide evenly in 50ml of aniline (0.1mol / L) sulfuric acid (0.5mol / L) solution, and then immerse the AAO (pore diameter 200nm, pore spacing 400nm) template into the above solution, vacuumize under reduced pressure, and ultrasonically Shaking; 50ml of ammonium persulfate (0.1mol / L) sulfuric acid (0.5mol / L) solution was slowly added dropwise into the sulfuric acid solution of aniline, and reacted in an ice-water bath for 6h to obtain a graphene oxide-doped polyaniline / AAO nanocomposite structure; Immerse the graphene oxide-doped polyaniline / AAO nanocomposite structure in 2mol / L sodium hydroxide solution, heat at 50°C for 60min, take it out, wash it with deionized water, and dry it to prepare the graphene oxide-doped polyaniline nanotube array .

[0039] (2) Preparation of polyaniline nanotube array / graphene composite material:

[0040] Add the graphene oxide-doped pol...

Embodiment 2

[0044] Graphene oxide quality in step 1 is 0.052g, other is the same as embodiment 1. In the prepared graphene / polyaniline composite electrode, the graphene content is 10 wt%, and the polyaniline nanotube array content is 90 wt%.

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Abstract

The invention provides a polyaniline nanometer tube array / graphene composite material electrode and a manufacturing method and application thereof, and belongs to the field of new energy products. The composite material electrode comprises a polyaniline nanometer tube array / graphene composite material and a conductive substrate. Graphene is doped in a polyaniline nanometer tube array to form a fiber-slice coexisting structure, the diameter of polyaniline nanometer tubes ranges from 150 nm to 300 nm, and the pipe spacing of the polyaniline nanometer tubes ranges from 300 nm to 400 nm. The conductive substrate is coated with the composite material to form the polyaniline nanometer tube array / graphene composite material electrode. The composite material electrode is high in conductivity and excellent in circulating performance and capacitance performance; the method for preparing the composite material electrode is easy to operate and friendly to the environment; a super capacitor with the composite material electrode is high in capacitance and good in circulating performance.

Description

technical field [0001] The invention belongs to the field of new energy products, and specifically relates to a polyaniline nanotube array / graphene composite electrode, a preparation method of the composite electrode, and an application of the composite electrode in supercapacitors. Background technique [0002] With the aggravation of environmental pollution and the increasingly serious energy crisis, people's demand for the development of new mobile power sources has become more and more urgent. The characteristics of supercapacitors with high power, fast rechargeability and long cycle life meet human needs for new energy sources. A supercapacitor is a new type of energy storage device that has both the high power density of a traditional capacitor and the energy density similar to a chemical power source. According to its energy storage principle, it is usually divided into pseudocapacitor supercapacitors, electric double layer capacitor. Pseudocapacitive supercapacitors...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/24H01G11/36H01G11/48H01G11/62H01G11/86
CPCY02E60/13
Inventor 熊廷玉葛东阳张金春邹雪峰赵楠凌付冬
Owner 南京绿索电子科技有限公司
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