Preparation method of carbon nanocage material

A carbon nanocage and weighing technology, which is applied in the direction of nano-carbon, can solve the problems of complex process, high cost, strong corrosion and toxicity of reagents, etc., and achieve high specific surface area, good conductivity, and good electrolyte ion transport performance. Effect

Active Publication Date: 2020-08-04
JINING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The preparation methods of carbon nanocages in the prior art include metal reduction method, carbon evaporation method, catalytic pyrolysis method, benzene flame combustion method, conversion of nitrogen-containing inorganic substances, etc., but these methods have high cost, complicated process or the use of Reagents are highly corrosive and toxic, etc.

Method used

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  • Preparation method of carbon nanocage material
  • Preparation method of carbon nanocage material
  • Preparation method of carbon nanocage material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh 2g of sucrose and 10g of potassium chloride into a polytetrafluoroethylene ball mill tank, and then weigh 100g of agate balls into the ball mill tank, and ball mill for 4 hours. Put the ball-milled solid powder in a quartz boat, and then put it into a tube furnace equipped with a quartz tube; pass nitrogen inert gas, the flow rate of the inert gas in the tube furnace is 50 mLmin -1 , Then at 5℃min -1 The temperature is raised to 800 ℃ at the rate of temperature increase, and the high temperature carbonization holding time is 2 hours to obtain the initial product. The obtained initial product was immersed in hot water for 8 hours, then filtered by suction, and dried in an oven at 80° C. for 24 hours to obtain a carbon nanocage material.

Embodiment 2

[0029] Weigh 1g of sucrose and 18g of potassium chloride into a polytetrafluoroethylene ball mill tank, then weigh 50g of agate balls into the ball mill tank, and ball mill for 0.5h. Put the ball-milled solid powder in a quartz boat, and then put it into a tube furnace equipped with a quartz tube; pass nitrogen inert gas, the flow rate of the inert gas in the tube furnace is 60 mLmin -1 , Then at 10℃min -1 The temperature is raised to 700 ℃ at the rate of temperature increase, and the high temperature carbonization holding time is 4 hours to obtain the initial product. The obtained initial product was immersed in hot water for 10 hours, then filtered with suction, and dried in an oven at 80° C. for 24 hours to obtain a carbon nanocage material.

Embodiment 3

[0031] Weigh 2g glucose and 1g potassium chloride into a polytetrafluoroethylene ball mill pot, then weigh 200g agate balls into the ball mill pot and ball mill for 4 hours. Put the ball-milled solid powder in a quartz boat, and then put it into a tube furnace equipped with a quartz tube; pass nitrogen inert gas, and the flow rate of the inert gas in the tube furnace is 80 mLmin -1 , Then at 5℃min -1 The temperature is raised to 600°C at the rate of temperature increase, and the high-temperature carbonization holding time is 2h to obtain the initial product. The obtained initial product was immersed in hot water for 8 hours, then filtered by suction, and dried in an oven at 80° C. for 24 hours to obtain a carbon nanocage material.

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Abstract

The present invention relates to the technical field of carbon nanomaterials, and specifically relates to a preparation method for a carbon nanocage material. The method comprises: a carbohydrate is used as a carbon source, and potassium chloride is used as a template, so that the raw materials are cheap, nontoxic, and pollution-free; the carbohydrate and potassium chloride are uniformly ball-milled and mixed in a ball milling pot; after ball milling, the carbohydrate is easily wrapped on the surface of potassium chloride, and then high-temperature carbonization is performed under an inert gas, so that an acid liquor or an alkali liquor is not required when hard template potassium chloride is removed, and only water is required to dissolve and remove potassium chloride. The whole preparation process is green and pollution-free, and is applicable for industrial large-scale preparation.

Description

Technical field [0001] The invention belongs to the technical field of carbon nano materials, and specifically relates to a method for preparing a carbon nano cage material. Background technique [0002] Carbon ranks sixth in the periodic table. It is an element widely distributed in nature and one of the most important and fascinating elements at present. There are many carbon nanomaterials, among which the important ones are zero-dimensional fullerenes, one-dimensional carbon nanotubes and two-dimensional graphene. These carbon nanomaterials can not only exist stably, but also have many surprising properties. It is widely used in energy storage, catalysis, electronics, environment and other fields. However, the three materials, fullerene, carbon nanotube, and graphene, have complex preparation processes, poor structural controllability, and low product purity, so it is difficult to have commercial-scale applications. [0003] Carbon nanocages are cage-like carbon nanomaterials...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/15
CPCC01B32/15
Inventor 王静姜靓徐香玉毛旭艳卢志华翟倩倩
Owner JINING UNIV
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