Anthraquinone molecule-cografted carbon/conductive polymer composite material and preparation method thereof

A technology of conductive polymers and anthraquinone molecules, applied in the direction of hybrid capacitor electrodes, etc., to achieve good application prospects, good cycle stability, and the effect of maintaining cycle stability

Active Publication Date: 2017-03-15
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the research on conductive polymer / graphene composite electrode materials has a good research foundation (Kashani H, Chen LY, Ito Y, Han JH, Hirata A, Chen MW. Bicontinuous nanotubulargraphene–polypyrrole hybrid for high performance flexible supercapacitors. Nano Energy 2016;19:391-400. Lia Y, Louarnb G, Aubertc P, Alain-Rizzoa V, Galmichea L, Audeberta P, et al. Polypyrrole-modified graphene sheet nanocomposites as new efficient materials for supercapacitors. Carbon 2016;105:510- 20. WuZS, Parvez K, Li S, Yang S, Liu ZY, Liu SH, et al. Alternating stacked graphene-conducting polymer compact films with ultrahigh areal and volumetric capacitances for high-energy micro-supercapacitors. Adv Mater 2015; 27:4054- 61.) However, due to the composite process of graphene and conductive polymers, the structural defects of graphene itself and the agglomeration of graphene are still the main factors restricting its energy density

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  • Anthraquinone molecule-cografted carbon/conductive polymer composite material and preparation method thereof
  • Anthraquinone molecule-cografted carbon/conductive polymer composite material and preparation method thereof
  • Anthraquinone molecule-cografted carbon/conductive polymer composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A preparation method of anthraquinone molecule co-grafted carbon / conductive polymer composite material, characterized in that the steps are as follows:

[0033] (1) Add 1g of 1,4-diaminoanthraquinone (purchased from Shanghai Future Industry Co., Ltd.) into 100mL (10g / L) of ethanol, dissolve to form a solution, and set aside;

[0034] (2) Refer to Ogrin, D., Chattopadhyay, J, Sadana, A.K, Billups, W.E, Barron, A.R. Epoxidation and deoxygenation of single-walled carbon nanotubes for the preparation method of 0.8g graphene oxide and 0.2g epoxidized carbon nanotubes: Quantification of epoxydefects.J Am Chem Soc, 2006,128,11322-11323) was added in 100mL ethanol, stirred and ultrasonically dispersed evenly to form a graphene oxide-epoxidized carbon nanotube dispersion, which was set aside;

[0035] (3), add the graphene oxide-epoxidized carbon nanotube dispersion formed in step (2) into step (1), reflux at 90°C for 24h, wash repeatedly with ethanol and water, and centrifuge t...

Embodiment 2

[0039] A preparation method of anthraquinone molecule co-grafted carbon / conductive polymer composite material, which differs from Example 1 in that:

[0040] In step (1), 1g of 1,4-diaminoanthraquinone becomes 2g of 2,6-diaminoanthraquinone;

[0041] In step (2), the quality of graphene oxide becomes 0.01g, and the quality of epoxidized carbon nanotube becomes 0.04g;

[0042] In step (4), 0.465 g of anthraquinone molecule co-grafted carbon dispersed in 155 mL of water becomes 0.0134 g of anthraquinone molecule co-grafted carbon dispersed in 26.8 mL of water (concentration 0.5 g / L);

[0043] In step (5), 0.465g (5mmol) aniline becomes 0.268g (4mmol) pyrrole, 0.2575g sodium polystyrene sulfonate (1.25mmol) becomes 2.7878g (8mmol) sodium dodecylbenzenesulfonate, 0.81 g (5mmol) ferric chloride becomes 0.9128g (4mmol) ammonium persulfate; 24h at 0°C becomes 12h at 30°C;

[0044] In step (3), the reflux at 90°C for 24h was changed to reflux at 80°C for 36h.

Embodiment 3

[0046] A preparation method of anthraquinone molecule co-grafted carbon / conductive polymer composite material, which differs from Example 1 in that:

[0047] In step (1), 1g of 1,4-diaminoanthraquinone becomes 0.1g of 1,5-diaminoanthraquinone;

[0048] In step (2), the quality of graphene oxide becomes 0.1g, and the quality of epoxidized carbon nanotube becomes 0.1g;

[0049] In step (4), 0.465 g of anthraquinone molecule co-grafted carbon dispersed in 155 mL of water becomes 0.108 g of anthraquinone molecule co-grafted carbon dispersed in 108 mL of water (concentration 1 g / L);

[0050] In step (5), 0.465g (5mmol) aniline becomes 1.08g (10mmol) m-phenylenediamine, 0.2575g sodium polystyrene sulfonate (1.25mmol) becomes 0.83g (5mmol) terephthalic acid, 0.81g (5mmol) ferric chloride changed to 2.7032g (10mmol) potassium persulfate; 24h reaction at 0°C changed to 18h reaction at 15°C.

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Abstract

The invention relates to an anthraquinone molecule-cografted carbon/conductive polymer composite material and a preparation method thereof. The method comprises the steps of adding graphene oxide and an epoxidized carbon nanotube to an amino-anthraquinone ethanol solution and carrying out heating reflux to prepare anthraquinone molecule-cografted carbon; and adding a conductive polymer monomer, a dopant and an oxidant to an anthraquinone molecule-cografted carbon dispersion liquid, reacting at 0-30 DEG C under a stirring condition for 12-24 hours and then obtaining the anthraquinone molecule-cografted carbon/conductive polymer composite material. Amino-anthraquinone molecules are cografted with the graphene oxide and the carbon nanotube as an electroactive medium, so that the dispersity of the graphene in the composite material is improved and a potential window is expanded; a composite grafting structure of a two-dimensional graphene sheet and a one-dimensional carbon nanotube is compounded with a conductive polymer to obtain the composite material with a three-dimensional network structure; and the anthraquinone molecule-cografted carbon/conductive polymer composite material has relatively high energy density and cycle stability as a super capacitor electrode material.

Description

technical field [0001] The invention relates to a method for preparing a conductive polymer composite electrode material, which belongs to the field of supercapacitor electrode materials. Background technique [0002] Supercapacitor is a new type of energy storage element between electrostatic capacitors and chemical power sources. Compared with traditional capacitors and batteries, it has the advantages of high specific capacity, high power density, long service life and environmental protection. It is used in many fields such as industry, communication, military and electric vehicles. At present, there are mainly three kinds of electrode materials commonly used in supercapacitors: carbon materials (with high specific surface area), conductive polymer materials and metal oxide materials. [0003] Carbon materials (such as graphene, carbon nanotubes, activated carbon, etc.), as representatives of electric double layer capacitors, can obtain high cycle life, but their energy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/30H01G11/36H01G11/48
CPCY02E60/13H01G11/48H01G11/30H01G11/36
Inventor 韩永芹申明霞曾少华陆凤玲张泽洁薛逸娇
Owner HOHAI UNIV
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