Preparation method of graphene loaded ordered polyaniline nanorod array electrode material

A technology of nanorod arrays and electrode materials, applied in circuits, capacitors, electrical components, etc., can solve the problems of polyaniline chemical structure damage, complex process, and affecting the overall performance of composite materials, and achieve excellent electrochemical performance. The effect of simple process and easy operation

Inactive Publication Date: 2012-05-02
EAST CHINA UNIV OF SCI & TECH
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Problems solved by technology

However, the technical process is more complicated, and the chemical structure of polyaniline is greatly damaged during the reduction process, which will affect the overall performance of the composite material.

Method used

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  • Preparation method of graphene loaded ordered polyaniline nanorod array electrode material
  • Preparation method of graphene loaded ordered polyaniline nanorod array electrode material
  • Preparation method of graphene loaded ordered polyaniline nanorod array electrode material

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[0032] (1) Sulfonated graphene is carried out according to the following steps: put graphite oxide into an aqueous solution of pH = 9 to 10, and after ultrasonic dispersion for 2 hours, make it fully peeled off; pre-reduce graphite oxide with sodium borohydride, and control boron Sodium hydride: the mass ratio of graphite oxide is 3: 1, reacts 1 hour at 80 ℃, to remove most of oxygen-containing groups in graphite oxide, obtains the graphite oxide of part reduction; Use p-aminobenzenesulfonic acid diazonium salt and The above-mentioned partly reduced graphite oxide was reacted in an ice-water bath for 3 hours, and the mass ratio of the controlled p-aminobenzenesulfonic acid diazonium salt: partly reduced graphite oxide was 1.3: 1 to introduce sulfonic acid groups; the above-mentioned sulfonated product was React with hydrazine hydrate at 100°C for 24 hours, fully reduce to remove residual oxygen-containing groups, wash with deionized water until neutral, and dry to obtain sulfon...

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Abstract

The invention relates to a method for preparing a graphene loaded ordered polyaniline nanorod array electrode material by low temperature interface polymerization, comprising the following steps: using sulfonated graphene as a carrier, dispersing the sulfonated graphene uniformly in an acidic aqueous solution containing dissolved oxidizing agent, dissolving aniline in an organic solvent, then transferring one phase into the other phase, standing for reaction at a low temperature. The prepared graphene loaded polyaniline composite material has an array of polyaniline nanorods vertically orderly arranged on the surface of the graphene base layer. The composite material has high specific capacitance, multiplying power characteristic and electrochemistry circularity and other excellent characteristics, and can be applied in high energy storage density super capacitor materials.

Description

technical field [0001] The invention belongs to the field of new energy materials, and relates to a preparation method of a supercapacitor electrode material, in particular to a preparation method of a graphene-loaded ordered polyaniline nanorod array electrode material. Background technique [0002] Polyaniline is one of the most representative conductive polymers. It has the characteristics of cheap raw materials, easy preparation, excellent environmental stability, high theoretical specific capacitance, and non-toxicity. It is widely used as an electrode material for supercapacitors. However, during the charge-discharge cycle, the volume of polyaniline repeatedly expands / shrinks, causing damage to the polymer chains, resulting in unsatisfactory electrochemical stability. At the same time, the conductivity of polyaniline is greatly affected by the pH of the system and the working potential. This restricts its application in electrode materials. [0003] Graphene presents...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/02C08K9/04C08K3/04H01G9/042
CPCY02E60/13
Inventor 王庚超马彪李星玮周晓
Owner EAST CHINA UNIV OF SCI & TECH
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