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Preparation method and usage of core-core-hull ternary composite material Co3O4/PANI/MnO2

A composite material, hexadecyltrimethylammonium bromide technology, applied in the direction of hybrid capacitor electrodes, etc., can solve the problem of low conductivity and achieve the effect of good shape, easy industrial production, and simple method

Inactive Publication Date: 2018-02-27
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

co 3 o 4 It can be used as an effective support material and as the core in the core/shell structure

Method used

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  • Preparation method and usage of core-core-hull ternary composite material Co3O4/PANI/MnO2
  • Preparation method and usage of core-core-hull ternary composite material Co3O4/PANI/MnO2

Examples

Experimental program
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Example Embodiment

[0027] Example 1

[0028] Accurately weigh 0.31g cobalt nitrate hexahydrate, 0.085g ammonium fluoride, 0.3226g urea and 0.05g cetyltrimethylammonium bromide (CTAB), dissolve them in 30mL deionized water, prepare the precursor solution, and then pour Put it into a 50mL reactor;

[0029] Use a piece of foamed nickel (1cm×1cm) with 1mol·L in advance -1 Washed with hydrochloric acid, acetone and deionized water, then put it into the reactor and immerse it in the above solution. The reactor will react at 100℃ for 8h, and the foamed nickel substrate loaded with the product will be ultrasonically dispersed in deionized water and ethanol for 1 min. , Then clean it, put it in an oven at 60℃ to dry, put the sample in a muffle furnace at 300℃ for 3h to obtain Co on the foamed nickel 3 O 4 Nanowires;

[0030] Then, with the obtained long Co 3 O 4 The foamed nickel of the nanowire is the working electrode, the platinum electrode is the auxiliary electrode, and the saturated calomel electrode is ...

Example Embodiment

[0032] Example 2

[0033] Accurately weigh 0.31g cobalt nitrate hexahydrate, 0.085g ammonium fluoride, 0.3226g urea and 0.1g cetyltrimethylammonium bromide (CTAB) and dissolve them in 30mL deionized water to prepare a precursor solution; then pour Put it into a 50mL reactor;

[0034] Use a piece of foamed nickel (1cm×1cm) with 1mol·L in advance -1 Washed with hydrochloric acid, acetone and deionized water, then put it into the reactor and immerse it in the above solution. The reactor will react at 120℃ for 10h, and the foamed nickel substrate loaded with the product will be ultrasonically dispersed in deionized water and ethanol for 1min. , Then clean it, put it in an oven at 60℃ to dry, put the sample in a muffle furnace at 350℃ for 3h to obtain Co on the foamed nickel 3 O 4 Nanowires;

[0035] Then, with the obtained long Co 3 O 4 The foamed nickel of the nanowire is the working electrode, the platinum electrode is the auxiliary electrode, and the saturated calomel electrode is th...

Example Embodiment

[0039] Example 3

[0040] Accurately weigh 0.31g of cobalt nitrate hexahydrate, 0.085g of ammonium fluoride, 0.3226g of urea and 0.1g of cetyltrimethylammonium bromide (CTAB), dissolve them in 30mL of deionized water, prepare the precursor solution, and then pour Put it into a 50mL reactor;

[0041] Use a piece of foamed nickel (1cm×1cm) with 1mol·L in advance -1 Washed with hydrochloric acid, acetone and deionized water, then put into the reactor, immersed in the above solution, the reactor was reacted at 150℃ for 12h, and the foamed nickel substrate loaded with the product was ultrasonically dispersed in deionized water and ethanol for 1 min. , Then clean it, put it in an oven at 60°C to dry, place the sample in a muffle furnace at 500°C for 3h to obtain Co on the foamed nickel 3 O 4 Nanowires;

[0042] Then, with the obtained long Co 3 O 4 The foamed nickel of the nanowire is the working electrode, the platinum electrode is the auxiliary electrode, and the saturated calomel elect...

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Abstract

The invention belongs to the technical field of composite material synthesis, and relates to a preparation method of Co3O4/PANI/MnO2 composite materials, in particular to a preparation method of a core-core-hull ternary composite material Co3O4/PANI/MnO2. According to the method, conventional materials Co3O4 and MnO2 which are low in cost, rich in resource and free of pollution are selected for use and synthesized with PANI with great conductibility, and then a core-core-hull heterostructure is designed successfully. Nickel foam serves as a current collector, a Co3O4 nanometer line array prepared according to a hydrothermal method serves as an inner core, a small part of capacitor is provided, Co3O4 serves as a framework, and a layer of PANI membrane is formed on the surface, where Co3O4 is generated, of the nickel foam through electrochemical deposition to serve as an outer core; a part of electric charges are stored for providing an effective approach for fast transmission of electronics, the conductivity of the material is improved, and finally, manganese dioxide prepared according to the hydrothermal method serves as a hull to further improve the capacitive performance of the material, so that the ternary composite material Co3O4/PANI/MnO2 which can be used for making a super capacitor electrode without binders is obtained.

Description

Technical field [0001] The invention belongs to the technical field of composite material synthesis and relates to Co 3 O 4 / PANI / MnO 2 The preparation method of composite material, in particular to a core-core-shell ternary composite material Co 3 O 4 / PANI / MnO 2 Preparation method and use. Background technique [0002] With the significant improvement of human living standards and the rapid development of the consumer electronics industry, the demand for supercapacitors (SC) is increasing, and the requirements for the performance of its electrode materials are getting higher and higher. SC electrode materials are no longer limited to a single material. Multi-element composite materials with special structures and good capacitance performance have become the focus of research. The characteristics of different materials in nanocomposites with a core / shell heterostructure are not only large active surface areas. And a shorter ion diffusion path, and there is a potential synergy be...

Claims

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Application Information

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IPC IPC(8): H01G11/26H01G11/30H01G11/46H01G11/48
CPCY02E60/13H01G11/26H01G11/30H01G11/46H01G11/48
Inventor 王莹莹王畅王义军郝臣王晓红高海文周赛赛杨滢璐
Owner JIANGSU UNIV
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