TiFe hydrogen storage alloy containing Co and Y and preparation method thereof

A hydrogen storage alloy and alloy technology, applied in the field of hydrogen storage materials, can solve the problems of easy oxidation, difficult activation of TiFe alloys, unsatisfactory hydrogen storage capacity, etc. The effect of improving hydrogen release time and solving activation difficulties

Active Publication Date: 2017-12-29
SHANGHAI UNIV
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the surface of TiFe alloy is easy to oxidize, the activation of TiFe

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
  • TiFe hydrogen storage alloy containing Co and Y and preparation method thereof
  • TiFe hydrogen storage alloy containing Co and Y and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example one:

[0021] In this embodiment, a TiFe hydrogen storage alloy with Co and Y added, its chemical formula is TiFe 0.86 Mn 0.1 Co 0.08 Y 0.02 .

[0022] In this embodiment, the preparation method of TiFe hydrogen storage alloy includes the following steps:

[0023] a. According to TiFe 0.86 Mn 0.1 Co 0.08 Y 0.02 The element molar ratio of, weighing Ti, Fe, Mn, Co and Y elemental metal materials with a purity of 99.9%, using Ti, Fe, Mn, Co and Y elemental elements as raw materials;

[0024] b. Using the magnetic levitation smelting process, first put all the raw materials weighed in step a into the crucible together, and pass high-purity argon with a purity of 99.9% into the melting crucible, and wash the furnace 5 times, each time When washing the furnace, fill the furnace with high-purity argon to make the atmosphere pressure 0.6atm; in the magnetic levitation smelting process, the melting power is controlled up to 15KW, and the melting power is slowly increased at a po...

Example Embodiment

[0028] Embodiment two:

[0029] This embodiment is basically the same as the first embodiment, and the special features are:

[0030] In this embodiment, a TiFe hydrogen storage alloy with Co and Y added, its chemical formula is TiFe 0.86 Mn 0.1 Co 0.06 Y 0.04 .

[0031] In this embodiment, the preparation method of TiFe hydrogen storage alloy includes the following steps:

[0032] a. According to TiFe 0.86 Mn 0.1 Co 0.06 Y 0.04 The element molar ratio of, weighing Ti, Fe, Mn, Co and Y elemental metal materials with a purity of 99.9%, using Ti, Fe, Mn, Co and Y elemental elemental materials as raw materials;

[0033] b. Using the magnetic levitation smelting process, first put all the raw materials weighed in step a into the crucible together, and pass high-purity argon with a purity of 99.9% into the melting crucible, and wash the furnace 5 times, each time Fill the furnace with high-purity argon to make the atmosphere pressure 0.6atm; in the maglev smelting process, the melting power...

Example Embodiment

[0037] Embodiment three:

[0038] This embodiment is basically the same as the previous embodiment, and the special features are:

[0039] In this embodiment, a TiFe hydrogen storage alloy with Co and Y added, its chemical formula is TiFe 0.86 Mn 0.1 Co 0.08 Y 0.02 .

[0040] In this embodiment, the preparation method of TiFe hydrogen storage alloy includes the following steps:

[0041] a. Using Ti-Fe-Mn as the master alloy, using TiFe hydrogen storage alloy according to the target TiFe 0.86 Mn 0.1 Co 0.08 Y 0.02 Add Co material and Y material to the Ti-Fe-Mn master alloy in the molar ratio of element components as raw materials;

[0042] b. This step is the same as the first embodiment.

[0043] Experimental test analysis:

[0044] The TiFe hydrogen storage alloy ingot prepared in Example 3 was polished with sandpaper to remove the surface oxide layer, and then the alloy was mechanically ground and crushed through a 200-mesh sieve to obtain hydrogen storage alloy powder and save it for u...

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

PropertyMeasurementUnit
Densityaaaaaaaaaa
Login to view more

Abstract

The invention discloses a TiFe hydrogen storage alloy containing Co and Y and a preparation method thereof. The chemical formula of the TiFe hydrogen storage alloy is TiFe0.86Mn0.1Co(0.1-x)Yx, wherein x is larger than or equal to 0.02 and smaller than or equal to 0.04. The novel TiFe0.86Mn0.1Co(0.1-x)Yx alloy is synthesized through a water-cooling copper crucible under the 99.9% high-purity argon environment. Through adding of Co and Y, the TiFe alloy is more easily activated and more easily absorbs hydrogen during first circulation. Meanwhile, the pressure of a hydrogen absorption and desorption platform of the alloy is low, and the slope of the hydrogen absorption and desorption platform is small. Under the temperature of 20 DEG C, the hydrogen storage quantity of the TiFe0.86Mn0.1Co0.06Y0.04 alloy reaches 1.95%(omega), and thus the TiFe0.86Mn0.1Co(0.1-x)Yx alloy is expected to provide efficient and practical hydrogen sources for equipment and production which take hydrogen as a raw material.

Description

technical field [0001] The invention relates to a hydrogen storage alloy and a preparation method thereof, in particular to a TiFe hydrogen storage alloy and a preparation method thereof, which will be applied in the technical field of hydrogen storage materials. Background technique [0002] With the further development of industrialization, carbon monoxide and carbon dioxide emissions have led to increased pollution and seriously affected the environment. China has ranked first in the world in terms of carbon dioxide emissions. To protect the environment from pollution and other dangerous pollutants, the move towards new energy sources is critical. Hydrogen is a potential candidate as a fuel source in various fields such as internal combustion engines and gas turbines. It has two advantages over other fuel systems: [0003] 1. No pollution and environmental protection; [0004] 2. Can be generated from other energy sources such as geothermal energy, solar energy and nuc...

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
IPC IPC(8): C22C30/00C22C1/02
CPCC22C1/02C22C30/00
Inventor 李重河瓦杰德李凯周路海王世华
Owner SHANGHAI 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