Composite hydrogen storage material, its preparation method and application

A hydrogen storage material, tih1.971 technology, applied in chemical instruments and methods, hydrogen, inorganic chemistry, etc., can solve the problems of low hydrogen storage efficiency and inability to store hydrogen, and achieve low cost of raw materials, simple operation, and simple preparation. Effect

Active Publication Date: 2021-04-06
JIANGSU UNIV OF SCI & TECH
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: The purpose of the invention is to provide a composite hydrogen storage material, its preparation method and application, to solve the problem that the existing materials cannot store hydrogen at low temperature and the hydrogen storage efficiency is low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Composite hydrogen storage material, its preparation method and application
  • Composite hydrogen storage material, its preparation method and application
  • Composite hydrogen storage material, its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Study on the effect of ball milling time on TiH 1.971 Improve MgH 2 Influence of temperature rise on hydrogen desorption performance:

[0030] First prepare TiH 1.97 Particles: TiH 1.971 Powder mixed with oleic acid, oleylamine and heptane, TiH 1.971 The volume ratio of oleic acid, oleylamine and heptane is 1:0.33~1:10~1:20, continuous ball milling at 300~500rpm for 10~60h, TiH 1.971 The mass ratio to the steel ball used for ball milling is 1:45~60; the sample after ball milling is cleaned and left to stand to remove the supernatant, and the remaining solid is washed and treated and dropped into the liquid tube with oleic acid, oleylamine and heptyl Mixed solvent for cleaning, in which the volume ratio of oleic acid, oleylamine and heptane is 1:0.33~1:10~1:50, in order to prevent too much heptane, it is difficult to fully mix with the material, so it is divided into two times Drop in, shake and mix after each drop, suck out, perform the second drop, and finally dro...

Embodiment 2

[0035] Study the effect of doping ratio on TiH 1.971 Improve MgH 2 Influence of temperature rise on hydrogen desorption performance:

[0036] TiH was ball milled for 60h 1.971 The proportion is 1wt% ~ 15wt% and MgH 2 Mix ball mill. With a mass ratio of 40:1 ball to material, put 2g of sample into it, mark it well, and run the ball mill jar forward and reverse alternately for 30 minutes at a speed of 450 rpm, but stop for 6 minutes during the alternation. After ball milling for two hours, crush the agglomerated sample in the tank; then after ball milling for two hours, take out the sample and keep it sealed in a glove box.

[0037]150-250 mg of catalyst composite system samples doped with a ratio of 1-15 wt % were weighed in the kit respectively. After the sample is put into the device, it is evacuated, the leak is picked up, and the test is started, and the temperature is raised to 450°C at a rate of 2°C / min through the program.

[0038] Such as figure 2 The hydrogen d...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a TiH 1.971 doped MgH 2 Composite hydrogen storage material, its preparation method and application, the composite hydrogen storage material includes TiH 1.971 Powder and MgH 2 ,TiH 1.971 Accounting for 1wt% to 15wt% of the total mass of the composite hydrogen storage material, by changing the TiH 1.971 Powder milling time and doping ratio to study MgH 2 Hydrogen storage performance. The present invention provides MgH 2 The composite material has good low-temperature hydrogen absorption and desorption kinetics and high hydrogen absorption and desorption capacity, and the preparation method is simple, and the raw material cost is low. It can be applied to portable power devices, fuel cell hydrogen supply sources, etc., and is also suitable for large Develop applications at scale.

Description

technical field [0001] The invention relates to a hydrogen storage material, in particular to a composite hydrogen storage material, its preparation method and application. Background technique [0002] Energy is the driving force of national economic development and an important way to improve people's living standards. The society is constantly progressing and developing, and energy technology is constantly innovating and breaking through. From the exploitation and use of fossil energy to the innovation and research of new energy, every change is improving people's living standards. However, due to technical limitations, fossil energy is still the energy that society mainly relies on, accounting for 80% of the world's energy use. However, the consumption of fossil energy is increasing day by day, including when the energy is converted through the Carnot cycle of the heat engine, it has low efficiency, causes a large amount of energy loss, and also produces CO 2 , nitroge...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): C01B3/00
CPCC01B3/0078Y02E60/32
Inventor 张刘挺陆雄颜年华孙泽季亮
Owner JIANGSU UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap