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A kind of preparation method of hydrogen elimination material

A technology of hydrogen elimination and nanomaterials, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of low hydrogen absorption capacity and poor hydrogen elimination effect, increase contact probability, reduce agglomeration, and increase hydrogen elimination reaction rate Effect

Active Publication Date: 2021-05-28
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hydrogen absorbing materials prepared in the prior art have low hydrogen absorbing capacity and poor hydrogen elimination effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A preparation method of hydrogen elimination material, comprising the following steps:

[0023] Step 1. In parts by weight, take 1 part of carbon nanotubes and add them to 200 parts of fuming nitric acid, stir and react at a temperature of 50°C for 3 hours, then add 30 parts of 4-ethynyl aniline, 50 parts of barium nitrite and 2 parts of azo Diisobutylcyanide, stirred at 150°C, condensed and refluxed for 5 hours, then diluted with distilled water, purified by centrifugal separation, washed 5 times with an organic solvent, and vacuum-dried to obtain alkynylated carbon nanotubes; the centrifugal separation and purification The rotating speed is 10000r / min, the temperature is 15°C, and the time is 10min; the organic solvent used for washing the organic solvent is toluene; the vacuum drying conditions are: temperature 120°C, vacuum degree -0.05MPa, drying time 24 hours;

[0024] Step 2. Disperse 1 part of alkynylated carbon nanotubes in 20 parts of N,N-dimethylformamide in ...

Embodiment 2

[0027] A preparation method of hydrogen elimination material, comprising the following steps:

[0028] Step 1. In parts by weight, take 1 part of carbon nanotubes and add 500 parts of fuming nitric acid, stir and react at a temperature of 50°C for 3 hours, then add 50 parts of dimethyl propargylamine, 30 parts of sodium nitrite and 3 parts of iso Propylbenzene hydrogen peroxide, stirred at 150°C, condensed and refluxed for 5 hours, then diluted with distilled water, purified by centrifugal separation, washed 5 times with an organic solvent, and vacuum-dried to obtain alkynylated carbon nanotubes; the centrifugal separation The speed of purification is 12000r / min, the temperature is 15°C, and the time is 10min; the organic solvent used for washing the organic solvent is xylene; the vacuum drying conditions are: temperature 120°C, vacuum degree -0.05MPa, drying time 24 Hour;

[0029] Step 2. Disperse 1 part of alkynylated carbon nanotubes in 30 parts of toluene in parts by weig...

Embodiment 3

[0032] A preparation method of hydrogen elimination material, comprising the following steps:

[0033] Step 1. In parts by weight, take 1 part of fullerene and add it to 300 parts of fuming sulfuric acid, stir and react for 5 hours at a temperature of 60° C., then add 50 parts of dimethyl propargylamine, 30 parts of magnesium nitrite and 3 parts of even Azodiisoheptanonitrile, stirred at 150°C, condensed and refluxed for 5 hours, then diluted with distilled water, purified by centrifugal separation, washed 5 times with an organic solvent, and dried in vacuum to obtain an alkynylated fullerene; the centrifugal separation The speed of purification is 12000r / min, the temperature is 25°C, and the time is 10min; the organic solvent used for washing the organic solvent is xylene; the vacuum drying conditions are: temperature 100°C, vacuum degree -0.05MPa, drying time 24 Hour;

[0034] Step 2. Disperse 1 part of alkynylated fullerene in 50 parts of tetrahydrofuran in parts by weight...

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PUM

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Abstract

The invention discloses a method for preparing a hydrogen elimination material, which comprises the following steps: step 1, oxidizing carbon nanomaterials, and then activating and alkynyling them to prepare alkynylated carbon nanomaterials with a hydrogen storage function; step 2. Dispersing the alkynylated carbon nanomaterials in a solvent, adding a noble metal salt solution, heating, and stirring; then adding a reducing agent solution, and continuing to stir, to obtain an alkynylated carbon nanomaterial-loaded nano-noble metal hydrogen elimination material. The invention first oxidizes the carbon nanomaterials with hydrogen storage function, and then prepares the alkynylated carbon nanomaterials with hydrogen storage function through activation and alkynylation, and then prepares the alkynylated carbon nanomaterials through the in-situ reduction method. Loaded nano noble metal hydrogen elimination material. Alkynylated carbon nanomaterials supported nano-noble metal hydrogen elimination materials, carbon nanomaterials have the function of hydrogen storage, and nano-noble metals are used as catalysts, which can make unsaturated alkyne groups react with hydrogen at room temperature to achieve the hydrogen elimination function.

Description

technical field [0001] The invention belongs to the technical field of preparation of hydrogen-absorbing materials, and in particular relates to a preparation method of an alkynylated carbon nano-material loaded nano-noble metal hydrogen-absorbing material. Background technique [0002] With the increasing shortage of fossil fuels and the continuous deterioration of the ecological environment, the search and development of a clean and renewable new energy source has attracted worldwide attention. Under the dual requirements of environmental pressure and energy crisis, hydrogen energy is emerging as a green energy and energy carrier with abundant reserves, wide sources and high energy density. However, the lack of economical, efficient and safe hydrogen storage technology has become the main bottleneck restricting the large-scale application of hydrogen energy. For the research on hydrogen storage technology at the present stage, the existing hydrogen storage materials have ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/20B01J20/30
CPCB01J20/20
Inventor 杨文彬丁泽何方方邓浩范敬辉张凯
Owner SOUTHWEAT UNIV OF SCI & TECH
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