Hydrogen storage alloys for metal hydride-high pressure composite hydrogen storage

A hydrogen storage alloy and hydride technology, applied in the field of alloys, can solve problems such as poor activation performance, low effective hydrogen storage capacity, and inability to meet the application requirements of metal hydride-high pressure composite hydrogen storage containers

Active Publication Date: 2015-10-28
ZHEJIANG UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Among the different series of hydrogen storage alloys, TiCr2 alloy has a relatively high hydrogen discharge plateau pressure, but its effective The hydrogen storage capacity is low (less than 1.2 wt%), and the activation performance is poor, which cannot meet the application requirements of metal hydride-high pressure composite hydrogen storage containers

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
  • Hydrogen storage alloys for metal hydride-high pressure composite hydrogen storage
  • Hydrogen storage alloys for metal hydride-high pressure composite hydrogen storage
  • Hydrogen storage alloys for metal hydride-high pressure composite hydrogen storage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Design a hydrogen storage alloy whose chemical formula is Ti 1.02 Cr 1.2 Fe 0.6 mn 0.2 B 0.01 , Calculate the addition amount of each raw material according to the chemical formula. The raw material purity of Ti, Cr, Fe, Mn and B all reach above 99%. The above-mentioned raw materials are weighed according to the calculated addition amount after being cleaned and dried, and an additional 3% weight of Mn is added according to the proportioning amount. Put the weighed sample in the water-cooled copper crucible of the magnetic levitation furnace. After evacuating to a vacuum degree of 1.02 Cr 1.2 Fe 0.6 mn 0.2 B 0.01 match.

[0034] The prepared hydrogen storage alloy ingot was crushed into particles with a particle size of less than 200 microns, and then loaded into a reactor to measure the hydrogen storage performance. The hydrogen storage alloy is first evacuated under the heating condition of 400°C for 30 minutes, and then filled with high-pressure hydrogen ga...

Embodiment 2

[0036] The design chemical formula is Ti 1.01 Cr 1.1 Fe 0.6 mn 0.3 B 0.01 The hydrogen storage alloy, according to the chemical formula to calculate the addition of each raw material. The raw material purity of Ti, Cr, Fe, Mn and B all reach above 99%. The above-mentioned raw materials are weighed according to the calculated addition amount after being cleaned and dried, and an additional 3% weight of Mn is added according to the proportioning amount. Put the weighed sample in the water-cooled copper crucible of the magnetic levitation furnace. After evacuating to a vacuum of 1.01 Cr 1.1 Fe 0.6 mn 0.3 B 0.01 match.

[0037] The prepared hydrogen storage alloy ingot was crushed into particles with a particle size of less than 200 microns, and then loaded into a reactor to measure the hydrogen storage performance. The hydrogen storage alloy is first evacuated at 400°C for 30 minutes, and then filled with high-pressure hydrogen. The alloy is easy to absorb hydrogen and ...

Embodiment 3

[0039] The design chemical formula is Ti 1.02 Cr 1.1 Fe 0.6 mn 0.3 B 0.01 The hydrogen storage alloy, according to the chemical formula to calculate the addition of each raw material. The raw material purity of Ti, Cr, Fe, Mn and B all reach above 99%. The above-mentioned raw materials are weighed according to the calculated addition amount after being cleaned and dried, and an additional 3% weight of Mn is added according to the proportioning amount. Put the weighed sample in the water-cooled copper crucible of the magnetic levitation furnace. After evacuating to a vacuum of 1.02 Cr 1.1 Fe 0.6 mn 0.3 B 0.01 match.

[0040] The prepared hydrogen storage alloy ingot was crushed into particles with a particle size of less than 200 microns, and then loaded into a reactor to measure the hydrogen storage performance. The hydrogen storage alloy is first evacuated under the heating condition of 400°C for 30 minutes, and then filled with high-pressure hydrogen gas. The alloy...

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 provides a hydrogen-storing alloy used for metal-hydride and high-pressure combined hydrogen storage. The alloy has a chemical formula as Ti<x>Cr<y>Fe<z>Mn<2>-y-zB<0.01>, wherein x is not smaller than 1.01 and not larger than 1.08, y is not smaller than 1 and not larger than 1.4, z is not smaller than 0.5 and not larger than 0.7, and the sum of y and z is smaller than 2. The pressure of the 318 K hydrogen-discharging platform of the hydrogen-storing alloy is over 35 MPa, hydrogen-discharging enthalpy change value is lower than 20 kJ / mol H2, and the hydrogen storage capacity is larger than 1.6 wt%. The hydrogen-storing alloy is capable of being activated when absorbing hydrogen for the first time, has the advantages of high hydrogen-discharging platform pressure, low thermal enthalpy value, higher hydrogen storage capacity and easy activation, and is especially suitable for being used as hydrogen storage materials of metal-hydride and high-pressure combined hydrogen storage devices.

Description

technical field [0001] The invention relates to an alloy, in particular to a hydrogen storage alloy used for metal hydride-high pressure composite hydrogen storage. Background technique [0002] Energy is the source of human development. Facing the dual pressures of increasing scarcity of oil resources and deterioration of the ecological environment, it has become a global consensus to use hydrogen energy, a clean energy source, to replace existing energy sources based on fossil fuels. [0003] In the process of developing various new uses of hydrogen, the storage method of hydrogen has received more and more attention. The hydrogen storage methods currently in use include metal hydride solid-state hydrogen storage, high-pressure gaseous hydrogen storage, and low-temperature liquid hydrogen storage. Among them, metal hydride solid-state hydrogen storage has a higher volume hydrogen storage density and a relatively lower gravimetric hydrogen storage density; while a high-pre...

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): C22C30/00
Inventor 陈立新陈志文肖学章范修林刘朗夏
Owner ZHEJIANG UNIV
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