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Carbon-coated carbon nitride nanotube and preparation method and application thereof

A nanotube and carbon nitride technology is applied in the field of carbon-coated carbon nitride nanotubes and its preparation, which can solve the problems of high price of conductive polymers, high preparation cost, complicated preparation process of supercapacitors, etc. Simple preparation process and low cost effect

Active Publication Date: 2018-12-28
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Nevertheless, its disadvantage is that the preparation process of the supercapacitor is relatively complicated, the price of the conductive polymer added is relatively expensive, and the preparation cost is relatively high.

Method used

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  • Carbon-coated carbon nitride nanotube and preparation method and application thereof
  • Carbon-coated carbon nitride nanotube and preparation method and application thereof
  • Carbon-coated carbon nitride nanotube and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A carbon-coated carbon nitride nanotube material, which is prepared from a graphite-like phase carbon nitride precursor and a carbon source as a precursor through one-step baking; the graphite-like phase carbon nitride The precursor is urea; the carbon source is glucose.

[0029] The preparation method includes the following steps:

[0030] (1) Weigh 6g of urea and 200mg of glucose into a 50mL crucible, inject 15mL of deionized water to completely dissolve the solids to obtain the corresponding mixed solution, transfer the crucible with the mixed solution to an oven at 80℃ and heat for 2h to remove part of the solution. Ionized water, take out the crucible and place it at room temperature to cool down naturally, the urea and glucose in the solution are recrystallized to form needle-like crystals.

[0031] (2) Transfer the needle-shaped crystals prepared in step (1) to a crucible, double-wrap the crucible with aluminum foil and put it into a tube furnace. The tube furnace is f...

Embodiment 2

[0033] A carbon-coated carbon nitride nanotube material, which is prepared from a graphite-like phase carbon nitride precursor and a carbon source through recrystallization and baking processes; the graphite-like phase carbon nitride The precursor is urea; the carbon source is glucose.

[0034] The preparation method includes the following steps:

[0035] (1) Weigh 6g of urea and 100mg of glucose into a 50mL crucible, inject 15mL of deionized water to completely dissolve the solids to obtain the corresponding mixed solution, transfer the crucible with the mixed solution to an oven at 80℃ and heat for 2h to remove part of the solution. Ionized water, take out the crucible and place it at room temperature for natural cooling, the urea and glucose in the solution will be recrystallized to form needle-like crystals;

[0036] (2) Transfer the needle-shaped crystals prepared in step (1) to a crucible, double-wrap the crucible with aluminum foil and put it into a tube furnace. The tube fur...

Embodiment 3

[0038] A carbon-coated carbon nitride nanotube material, which is prepared from a graphite-like phase carbon nitride precursor and a carbon source as a precursor through one-step baking; the graphite-like phase carbon nitride The precursor is urea; the carbon source is glucose.

[0039] The preparation method includes the following steps:

[0040] (1) Weigh 6g of urea and 300mg of glucose into a 50mL crucible, inject 15mL of deionized water to completely dissolve the solids to obtain the corresponding mixed solution, transfer the crucible with the mixed solution to an oven at 80℃ and heat for 2h to remove part of the solution. Ionized water, take out the crucible and place it at room temperature to cool down naturally, the urea and glucose in the solution are recrystallized to form needle-like crystals.

[0041] (2) Transfer the needle-shaped crystals prepared in step (1) to a crucible, double-wrap the crucible with aluminum foil and put it into a tube furnace. The tube furnace is f...

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Abstract

The invention relates to a carbon-coated carbon nitride nanotube and a preparation method thereof. Specifically, a carbon-coated carbon nitride nanotube material is prepared by a one-step calcinationmethod using a mixture of a graphite-like phase carbon nitride precursor and a carbon source as a product precursor, and is used as a supercapacitor electrode material for capacitance performance testing. The carbon nitride prepared by the method has a nano-tubular structure, can obviously increase the specific surface area of the material and improve the capacitance performance of the material, and the carbon material coated on the surface overcomes the defect of poor conductivity of the carbon nitride itself. Compared with bulk carbon nitride capacitor, the material has obvious improvement in capacitance, excellent cycling stability in the process of 1000 cycles charge and discharge, simple preparation and low cost, and has good application prospects in the fields of electric power storage, smart grid and new energy vehicles and so on.

Description

Technical field [0001] The invention belongs to the technical field of material preparation and supercapacitors, and specifically relates to a carbon-coated carbon nitride nanotube and a preparation method and application thereof. technical background [0002] As a new type of energy storage element, supercapacitors have the advantages of green and high efficiency. It has the advantages of traditional batteries and capacitors, and has the advantages of faster charging rate, higher power and energy density, good stability and long service life. As an electrical storage component with broad development prospects, supercapacitors are widely used in energy storage, power transmission, aerospace, national defense and other fields. They are also one of the ideal energy storage devices to overcome the energy crisis in the world today. [0003] As a kind of compound that people first studied, carbon nitride material has the characteristics of simple preparation and rich content of earth e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/32H01G11/36H01G11/86
CPCH01G11/32H01G11/36H01G11/86Y02E60/13
Inventor 徐慎刚林治王柯王雪兆刘应良曹少魁
Owner ZHENGZHOU UNIV
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