Preparation method for loading copper oxide nanoparticles on surface of in-situ synthesized carbon nanotube

A carbon nanotube and nanoparticle technology, which is applied in the field of nanomaterial preparation, can solve the problems of environmental hazards, poor adhesion of metal decoration layers, and difficult removal of heavy metal elements, and achieves the effect of strong interface adhesion.

Inactive Publication Date: 2019-12-17
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the electroless plating process is relatively complicated, and the introduced heavy metal elements are not easy to be completely removed, which has potential hazards to both the environment and the body.
The other methods rely on more expensive equipment, and the bonding force between the metal modification layer or modification particles and CNTs is poor, and the coating is easy to fall off during use.

Method used

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  • Preparation method for loading copper oxide nanoparticles on surface of in-situ synthesized carbon nanotube
  • Preparation method for loading copper oxide nanoparticles on surface of in-situ synthesized carbon nanotube
  • Preparation method for loading copper oxide nanoparticles on surface of in-situ synthesized carbon nanotube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Weigh 0.8g hydroxylated CNTs (organization morphology as figure 1 Shown) and 1g copper sulfate crystal, be placed in the beaker that volume is 250ml, and add 150ml distilled water. The beaker was placed in a water bath, and magnetically stirred at room temperature for 2 hours to fully mix the hydroxylated CNTs and copper sulfate in the mixed solution. Raise the temperature of the water bath to 90°C, and add 20ml, 2mol / L sodium hydroxide solution dropwise after reaching the temperature. After the reaction is complete, the mixed solution is suction filtered, and the powder obtained by the suction filtration is washed with distilled water, and the washing and suction filtration are repeated 3 times. The obtained mixed powder was placed in a vacuum drying oven at a drying temperature of 80°C and a drying time of 12 hours. The morphology of the powder was as follows: figure 2 shown. It can be found that the copper oxide / copper hydroxide nanoparticles obtained by the prec...

Embodiment 2

[0034] Weigh 1 g of hydroxylated carbon nanotubes and 1 g of copper sulfate crystals, place them in a beaker with a volume of 250 ml, and add 200 ml of distilled water. Place the beaker in a water bath, and stir magnetically for 2 hours at room temperature to fully mix the hydroxylated carbon nanotubes and copper sulfate in the mixed solution. Raise the temperature of the water bath to 90°C, and add 20ml, 2mol / L sodium hydroxide solution dropwise after reaching the temperature. After the reaction is complete, the mixed solution is suction filtered, and the powder obtained by the suction filtration is washed with distilled water, and the washing and suction filtration are repeated 3 times. The obtained mixed powder was placed in a vacuum drying oven at a drying temperature of 80° C. and a drying time of 12 hours. The dried mixed powder was placed in a muffle furnace for annealing treatment at an annealing temperature of 300 °C and a holding time of 2 h to obtain a CuO@CNTs com...

Embodiment 3

[0036] Weigh 0.8 g of hydroxylated carbon nanotubes and 1 g of copper sulfate crystals, place them in a beaker with a volume of 250 ml, and add 200 ml of distilled water. Place the beaker in a water bath, and stir magnetically for 2 hours at room temperature to fully mix the hydroxylated carbon nanotubes and copper sulfate in the mixed solution. Raise the temperature of the water bath to 100°C, and add 20ml, 2mol / L sodium hydroxide solution dropwise after reaching the temperature. After the reaction is complete, the mixed solution is suction filtered, and the powder obtained by the suction filtration is washed with distilled water, and the washing and suction filtration are repeated 3 times. The obtained mixed powder was placed in a vacuum drying oven at a drying temperature of 80° C. and a drying time of 12 hours. The dried mixed powder was placed in a muffle furnace for annealing treatment at an annealing temperature of 350 °C and a holding time of 2 h to obtain a CuO@CNTs ...

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Abstract

The invention relates to a preparation method for loading copper oxide nanoparticles on the surface of an in-situ synthesized carbon nanotube. The preparation method comprises the following steps: (1)preparation of a mixed solution of a carbon nanotube and a copper sulfate crystal; (2) chemical precipitation on the surface of the carbon nanotube to obtain a copper oxide / copper hydroxide mixture:heating the mixed solution of carbon nanotube and copper sulfate to 90-100 DEG C, dropwise adding a sodium hydroxide solution with the concentration of 1-2 mol / L after the mixed solution is heated to90-100 DEG C, carrying out suction filtration and washing on the mixed solution after the reaction is completed, and carrying out drying treatment on mixed powder obtained after suction filtration; and (3) annealing treatment of the mixed powder: putting the dried powder in a muffle furnace for annealing treatment at a temperature of 300 DEG C to 400 DEG C, carrying out heat preservation for 2 h to 3 h, then carrying out cooling to room temperature with the furnace cooling after heat preservation is completed so as to obtain the CuO@CNTs composite material.

Description

technical field [0001] The invention relates to a method for in-situ synthesis of carbon nanotube surface loaded copper oxide nanoparticles by using a chemical precipitation method and annealing treatment, and belongs to the technical field of nanomaterial preparation. Background technique [0002] Carbon nanotubes (CNTs) are a hollow tubular one-dimensional nanomaterial formed from carbon elements. Theoretically, its elastic modulus can reach 1.8TPa, which is one of the materials with the most excellent elastic modulus and shear modulus found today. In addition, since the carbon atoms in CNTs are mostly SP 2 Hybridization, hybrid orbitals constitute more highly delocalized π-electrons, so it also has ultra-high application prospects in the fields of electricity and thermals. However, the diameter of CNTs is usually several to tens of nanometers, and the length can reach the micron level. The higher aspect ratio and the stronger intermolecular force between CNTs lead to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/168C01G3/02
CPCC01G3/02C01P2004/01C01B32/168
Inventor 赵乃勤戎旭东师春生何春年何芳刘恩佐马丽颖
Owner TIANJIN UNIV
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