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Preparation method of nickel oxide loaded modified activated carbon fiber adsorbent

A technology of activated carbon fiber and nickel oxide, applied in chemical instruments and methods, alkali metal oxides/hydroxides, inorganic chemistry, etc., can solve the problem that the hydrogen storage capacity does not reach the ideal hydrogen adsorption capacity, and achieve good hydrogen adsorption capacity , uniform loading, safe and easy adsorption conditions

Inactive Publication Date: 2020-04-10
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In summary, the hydrogen storage capacity of activated carbon fibers prepared by the current process has not reached the ideal hydrogen adsorption capacity, so it is an easy-to-operate and cost-effective method to increase the hydrogen storage capacity through the surface modification of activated carbon fibers.

Method used

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  • Preparation method of nickel oxide loaded modified activated carbon fiber adsorbent
  • Preparation method of nickel oxide loaded modified activated carbon fiber adsorbent
  • Preparation method of nickel oxide loaded modified activated carbon fiber adsorbent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Example 1 (the 11th group of experimental data)

[0033] Weigh 0.6g of cleaned activated carbon fiber, place it in 80ml mass fraction of 0.5wt.% nickel nitrate solution for impregnation, ultrasonically oscillate for 30 minutes, place it in a water bath and stir for 6 hours, wash until neutral, and place it in an oven at 80°C overnight , take it out and set aside. The impregnated and dried activated carbon fibers were placed in a tube furnace and raised to 600 °C at a rate of 6 °C / min under nitrogen, and then returned to room temperature at the same rate after maintaining for 60 min to prepare activated carbon fibers loaded with nickel oxide. , nitrogen adsorption and desorption of the adsorbent, pore size distribution, SEM, XPS, hydrogen storage performance, such as figure 1 , 2 , 4, 7, and 8.

Embodiment 2

[0035] Weigh 0.6g of cleaned activated carbon fiber, place it in 80ml mass fraction of 0.5wt.% samarium nitrate solution for impregnation, ultrasonically oscillate for 30 minutes, place it in a water bath and stir for 6 hours, wash until neutral, place it in an oven at 80°C overnight , take it out and set aside. The impregnated and dried activated carbon fibers were placed in a tube furnace and raised to 600 °C at a rate of 6 °C / min under nitrogen gas, and then returned to room temperature at the same rate after maintaining for 60 min to prepare activated carbon fibers loaded with samarium oxide .

Embodiment 3

[0037] Weigh 0.6g of cleaned activated carbon fiber, place it in 80ml mass fraction of 0.5wt.% copper nitrate solution for immersion, ultrasonically oscillate for 30 minutes, place it in a water bath and stir for 6 hours, wash until neutral, and place it in an oven at 80°C overnight , take it out and set aside. The impregnated and dried activated carbon fibers were placed in a tube furnace and raised to 600 °C at a rate of 6 °C / min under nitrogen gas, and then returned to room temperature at the same rate after maintaining for 60 min to prepare activated carbon fibers loaded with samarium oxide .

[0038] 4. Embodiment 4

[0039] Weigh 0.6g of cleaned activated carbon fiber, place it in 80ml mass fraction of 0.5wt.% nickel nitrate solution for impregnation, ultrasonically oscillate for 30 minutes, place it in a water bath and stir for 6 hours, wash until neutral, and place it in an oven at 80°C overnight , take it out and set aside. Activated carbon fibers loaded with nicke...

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Abstract

The invention belongs to the technical field of carbon material adsorption and provides a preparation method of a nickel oxide loaded modified activated carbon fiber adsorbent. The method comprises the following steps: (1) pretreating activated carbon fibers; (2) dipping the activated carbon fibers; and (3) preparing the nickel oxide-loaded activated carbon fibers. The preparation method is simple, when the activated carbon fiber is impregnated, a mixture is subjected to ultrasonic oscillation, so that metal salt is fully loaded on surfaces of the activated carbon fibers, after modification, the hydrogen storage performance of the activated carbon fibers is improved by 28.4%, and a more effective treatment method and a more effective research direction are provided for adsorption separation and storage of hydrogen.

Description

technical field [0001] The invention belongs to the technical field of carbon material adsorption, in particular to a preparation method of a modified activated carbon fiber adsorbent loaded with nickel oxide, which is applied to hydrogen storage. Background technique [0002] With the development of human society, people's demand for energy is increasing day by day. The reserves of traditional fossil energy are not only gradually decreasing, but also cause huge pollution to the environment. Therefore, seeking green and renewable energy has become an important task for human beings. As a new type of renewable energy, hydrogen energy has the advantages of wide sources, high calorific value, and non-polluting products. However, the research and development of hydrogen storage materials is the main bottleneck restricting the utilization of hydrogen energy. The hydrogen storage capacity of current hydrogen storage materials is still far from the requirements of the US Department...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/32C01B3/00
CPCB01J20/06B01J20/20B01J20/28023B01J20/32C01B3/0078C01B3/0084Y02E60/32
Inventor 鲁金明张集孔乾乾杨建华刘毅张艳王金渠殷德宏
Owner DALIAN UNIV OF TECH
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