Composite material of ionic liquid functionalized carbon nanotubes and preparation method of composite material

A carbon nanotube and ionic liquid technology, which is applied to the preparation of ionic liquid functionalized carbon nanotube materials, and the field of ionic liquid functionalized carbon nanotube composite materials, can solve complex synthesis conditions, large energy consumption, and no obvious catalytic performance. Questions such as questions are raised to achieve the effect of simple and fast process and lower cost of use

Active Publication Date: 2019-06-14
SOUTHWEST UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Compared with precious metals such as Pt, this type of electrode reduces the cost while maintaining a low overvoltage, but this type of electrode still uses "rare metals" such as Mo, and its synthesis process still consumes a lot of energy. and corrosion resistance are limited
Recently, conductive polymer materials (polyaniline, polypyrrole, polyaniline-polypyrrole) have been used as non-metallic electrocatalysts in the electrolysis of water

Method used

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  • Composite material of ionic liquid functionalized carbon nanotubes and preparation method of composite material
  • Composite material of ionic liquid functionalized carbon nanotubes and preparation method of composite material
  • Composite material of ionic liquid functionalized carbon nanotubes and preparation method of composite material

Examples

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Embodiment 1

[0019] Example 1 Preparation of Ionic Liquid Functionalized Carbon Nanotubes

[0020] Schematic diagram of the preparation steps of methylimidazolium-based ionic liquid functionalized carbon nanotubes as figure 1 As shown, the specific steps are as follows:

[0021] 1) The formaldehyde and glyoxal solution were ultrasonically mixed according to the molar ratio of 1:1, and then ammonium acetate and amine-functionalized carbon nanotubes were added. o C methanol for 6 hours. The initial product was washed with (0.1 M) sodium hydroxide solution to obtain imidazole functionalized carbon nanotubes; wherein the molar ratio of ammonium acetate to formaldehyde was 1:2;

[0022] 2) Add the above-mentioned imidazole functionalized carbon nanotubes into the methyl iodide solution, at 80 o C methanol reacted for 6 hours, and finally obtained methylimidazolium iodide salt ionic liquid functionalized carbon nanotubes MIM-I-CNTs; wherein the mass ratio of imidazole functionalized carbon na...

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Abstract

The invention discloses a composite material of ionic liquid functionalized carbon nanotubes. Ionic liquid imidazolyl is cation; iodine ions, boron tetrafluoride, phosphorus hexafluoride and bis(trifluoromethanesulfonyl)imine are used as anions respectively; ionic liquid is directly connected onto surfaces of the carbon nanotubes through a covalent bond and no other atoms are used for connecting the ionic liquid and the carbon nanotubes. The invention further discloses a preparation method of the composite material; amino functionalized carbon nanotubes, formaldehyde, glyoxal and ammonium acetate are mixed in methanol to react. Then iodomethane is added into a product to finally obtain methylimidazole iodine salt functionalized carbon nanotubes. Then other ionic liquid functionalized carbon nanotubes are obtained through anion exchange. The composite material disclosed by the invention is used as a hydrogen evolution catalyst and is applied to electrolytic water; the ionic liquid modified carbon nanotubes have excellent hydrogen evolution catalytic activity and ionic liquid also can have the effect of a bonding agent.

Description

technical field [0001] The invention belongs to the technical field of carbon nanotube composite materials, in particular to an ionic liquid functionalized carbon nanotube composite material, and more specifically to a preparation method of an ionic liquid functionalized carbon nanotube material and its application as a hydrogen evolution catalyst. Background technique [0002] At present, the energy crisis and environmental pollution problems faced by the whole world have become increasingly severe, threatening the survival and development of human beings; at the same time, non-renewable energy sources such as coal, natural gas and oil are nearly exhausted, and the pollution produced by such energy sources very serious. Therefore, the development of renewable energy and the path of sustainable development have become the focus of research by scholars from all over the world. Among all kinds of new renewable energy, solar energy and wind energy are easily affected by enviro...

Claims

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Application Information

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IPC IPC(8): B01J31/02C25B11/06C25B1/04
CPCY02E60/36
Inventor 李天浩
Owner SOUTHWEST UNIVERSITY
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