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Preparation for hollow graphite carbon ball/manganese dioxide nano-fiber composite material

A nanofiber, manganese dioxide technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of poor conductivity and unsatisfactory capacitance performance of manganese dioxide, and achieve low cost, It is beneficial to the transmission of electrons, and the operation method is simple.

Inactive Publication Date: 2015-05-06
WUXI HUAZHEN NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the poor conductivity of manganese dioxide leads to unsatisfactory capacitance performance.

Method used

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  • Preparation for hollow graphite carbon ball/manganese dioxide nano-fiber composite material
  • Preparation for hollow graphite carbon ball/manganese dioxide nano-fiber composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1. Deposit carbon on the surface of spherical silica with a size of about 200nm by chemical vapor phase method, and further graphitize at 90 degrees, and then dissolve the silica with 20% HF. Obtained hollow graphite carbon spheres.

[0023] 2. Put graphite carbon spheres in potassium permanganate solutions of different concentrations (20%, 30%, 50%), reflux at 70 degrees for 2 hours, then filter, wash with ethanol three times, and dry in an oven at 90 degrees. Finally, hollow graphite carbon sphere / manganese dioxide nanofiber composites with different manganese dioxide contents (30%, 50%, 60%) were obtained.

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Abstract

The invention discloses a preparation method for hollow graphite carbon ball / manganese dioxide nano-fiber composite material suitable for super-capacitor material. The hollow graphite carbon ball / manganese dioxide nano-fiber composite material is prepared through growing manganese dioxide nano-fiber on a hollow graphite carbon ball by means of the interaction between the hollow graphite carbon ball and potassium permanganate. The preparation method for the hollow graphite carbon ball / manganese dioxide nano-fiber composite material is easy to operate, and the prepared hollow graphite carbon ball / manganese dioxide nano-fiber composite material has high ion transmission performance and is suitable for the super-capacitor material.

Description

technical field [0001] The present invention relates to a kind of preparation method of hollow graphite carbon sphere / manganese dioxide nanofiber composite material, more specifically relate to will use hollow graphite carbon sphere as template agent, react with potassium permanganate solution, in hollow graphite carbon sphere Manganese dioxide fibers are generated on the method to prepare hollow graphite carbon spheres / manganese dioxide nanofiber composites. Background technique [0002] Manganese dioxide is cheap and abundant in resources. Environmentally friendly, specific capacity zirconium (theoretical specific capacity is about 1100F.g-1), is an ideal substitute for precious metals such as ruthenium oxide. Manganese oxide, nickel oxide, tricobalt tetroxide and vanadium pentoxide are expected to replace ruthenium oxide. Due to the unique advantages of nanometer size, nano-carbon materials have a huge specific surface area and good electrical conductivity, so they have...

Claims

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Application Information

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IPC IPC(8): H01G11/36H01G11/26
CPCB82Y30/00B82Y40/00H01G11/36H01G11/46Y02E60/13
Inventor 谷涛沈绍典
Owner WUXI HUAZHEN NEW ENERGY TECH
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