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Preparation method of hollow carbon nanocage material

A nanocage and hollow carbon technology, applied in nanotechnology and other fields, can solve problems such as low product yield, high equipment and reagent prices, and complicated process

Active Publication Date: 2014-10-29
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above preparation methods have the disadvantages of complex process, high price of equipment and reagents, and low yield of products.

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Weigh 8g of ferric ammonium citrate and place it in a quartz boat, and then put it into a tube furnace equipped with a quartz tube. -1 Raise the temperature to 600°C and keep it for 5 hours, then take it out after cooling to room temperature. The obtained solid was dissolved in 0.5mol L -1 The HClO4 solution was neutralized at 80° C. for 24 hours, filtered, washed and dried to obtain a hollow carbon nanocage material.

Embodiment 2

[0025] Weigh 10g ferric ammonium citrate and place it in a quartz boat, then put it into a tube furnace equipped with a quartz tube, and heat it at 5°C min under a helium atmosphere. -1 Raise the temperature to 700°C and keep it for 3 hours, then take it out after cooling to room temperature. The obtained solid was dissolved in 0.1mol L -1 The H2SO4 solution was neutralized at 90° C. for 12 hours, filtered, washed and dried to obtain a hollow carbon nanocage material.

Embodiment 3

[0027] Weigh 8g of ferric ammonium citrate and place it in a quartz boat, then put it into a tube furnace equipped with a quartz tube, and heat it at 15°C min under an argon atmosphere. -1 Raise the temperature to 800°C and keep it for 1 hour, then take it out after cooling to room temperature. Dilute the obtained solid in 1mol L -1 The HCl solution was neutralized at 70° C. for 36 hours, filtered, washed and dried to obtain a hollow carbon nanocage material.

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Abstract

The invention discloses a preparation method of a hollow carbon nanomcage material. The method is as follows: putting ferric ammonium citrate in a quartz boat, and then placing into a tube furnace provided with a quartz tube; raising the temperature to 600 to 1000 DEG C under an inert atmosphere, and maintaining for 1-5 hours, cooling to room temperature; treating for 12 to 36 hours in an acid solution and at the temperature of 60-100 DEG C, filtering, washing with water and drying to obtain the hollow carbon nanomcage material. The method uses a precursor inexpensive in price, the preparation process is simple and convenient, and large-scale preparation can be realized.

Description

technical field [0001] The invention relates to a method for preparing a hollow carbon nanocage material by using ferric ammonium citrate as a precursor through heat treatment and acid treatment. Background technique [0002] Due to their high specific surface area, excellent acid and alkali resistance, and good electrical and thermal conductivity, carbon nanomaterials have broad application prospects in the fields of electronic components, biomedicine, adsorption, catalytic reactions, and electrochemical energy conversion devices. Broad interest of researchers in related fields. Among them, the hollow carbon nanocage material has a unique hollow nanostructure, which can be applied to the adsorption of biomolecules, catalytic reactions, and supercapacitors. The existing methods for preparing hollow carbon nanocages mainly include arc method, plasma polymerization method, vapor phase chemical deposition method, supercritical fluid method and laser evaporation method, etc. Ge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/02B82Y40/00
Inventor 包信和王静汪国雄谭大力
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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