Mg-Ni alloy particles with rare earth element Ce embedded in surface and preparation method thereof

A technology of alloy particles and rare earth metals, applied in the field of metal materials, can solve the problems of slow start of hydrolysis reaction, slow hydrolysis hydrogen production kinetics, low reaction activity, etc., to avoid activation process, improve alloy mass transfer behavior, and high hydrogen production. The effect of capacity

Active Publication Date: 2020-10-09
LUOYANG INST OF SCI & TECH
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiencies in the above-mentioned prior art, the object of the present invention is to provide a kind of Mg-Ni eutectic alloy particle that is used for hydrolyzing the surface of hydrogen production and mosaic Ce, which can improve the low surface reactivity of existing magnesium alloy materials, and the hydrolysis reaction Slow start, slow hydrolysis kinetics of hydrogen production, etc.

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
  • Mg-Ni alloy particles with rare earth element Ce embedded in surface and preparation method thereof
  • Mg-Ni alloy particles with rare earth element Ce embedded in surface and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Alloy ingredients:

[0033] Select Ni powder and Mg block, the particle size of Ni powder is 10-30nm, the purity of Ni powder is ≥99.5%, the mass of Ni powder accounts for 23.5% of the total mass of magnesium and nickel; 76.5%, the burning loss of 6% of the total weight of magnesium and nickel added by magnesium;

[0034] (2) Mg-Ni alloying:

[0035] Put the magnesium block into a dried high-purity graphite crucible, and under the protection of the covering agent RJ-2, heat the Mg block to 770°C to obtain Mg molten metal, press Ni powder into Ni sheet and put it into the Mg molten metal. Stir mechanically for 20 minutes to obtain the Mg-Ni alloy melt, raise the temperature of the alloy melt to 880°C and keep it warm for 30 minutes, stir the alloy melt during the heat preservation process, and cast it into a graphite mold preheated to 240°C after the Ni sheet is completely melted , naturally cooling to room temperature to obtain a Mg-Ni alloy ingot, grinding and re...

Embodiment 2

[0043] (1) Alloy ingredients:

[0044] Select Ni powder and Mg block, the particle size of Ni powder is 10-30nm, the purity of Ni powder is ≥99.5%, the mass of Ni powder accounts for 10% of the total mass of magnesium and nickel, the purity of Mg block is ≥99.8%, and the mass of Mg block accounts for 10% of the total mass of magnesium and nickel. 90%, the burning loss of 2% of the total weight of magnesium and nickel added to magnesium;

[0045] (2) Mg-Ni alloying:

[0046] Put the magnesium block into a dried high-purity graphite crucible, and under the protection of the covering agent RJ-2, heat the Mg block to 750°C to obtain Mg molten metal, press Ni powder into Ni sheet and put it into the Mg molten metal. Stir mechanically for 30 minutes to obtain a Mg-Ni alloy melt, raise the temperature of the alloy melt to 850°C and keep it warm for 30 minutes, stir the alloy melt during the heat preservation process, and cast it into a graphite mold preheated to 240°C after the Ni s...

Embodiment 3

[0052] (1) Alloy ingredients:

[0053] Select Ni powder and Mg block, the particle size of Ni powder is 10-30nm, the purity of Ni powder is ≥99.5%, the mass of Ni powder accounts for 55% of the total mass of magnesium and nickel, the purity of Mg block is ≥99.8%, and the mass of Mg block accounts for 10% of the total mass of magnesium and nickel. 45%, the burning loss of 8% of the total weight of magnesium and nickel added by magnesium;

[0054] (2) Mg-Ni alloying:

[0055] Put the magnesium block into a dried high-purity graphite crucible, and under the protection of the covering agent RJ-2, heat the Mg block to 790°C to obtain Mg molten metal, press Ni powder into Ni sheet and put it into the Mg molten metal. Stir mechanically for 10 minutes to obtain a Mg-Ni alloy melt, raise the temperature of the alloy melt to 900°C and keep it warm for 30 minutes, stir the alloy melt during the heat preservation process, and cast it into a graphite mold preheated to 240°C after the Ni s...

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
Granularityaaaaaaaaaa
Granularityaaaaaaaaaa
Granularityaaaaaaaaaa
Login to view more

Abstract

The invention provides high-reactivity Mg-Ni alloy particles with the rare earth element Ce embedded in the surface and a preparation method thereof. The alloy particles are used for hydrolysis hydrogen production. The expression of the alloy particles is Ce@Mg-xNi, i.e. rare earth element Ce particles are embedded in the surface of the Mg-Ni alloy particles. The preparation method of the alloy particles comprises the following steps: (1) metal Mg blocks and Ni powder are selected; (2) the Mg blocks and a Ni sheet prepared by pressing the Ni powder are evenly mixed in a high-temperature smelting status, and a Mg-Ni alloy ingot is obtained after cooling; (3) the prepared Mg-Ni alloy ingot is cut into small pieces, are pressed by a tablet press into Mg-Ni alloy debris, the debris is placed in a ball milling pot and subjected to ball milling under argon protection, and the Mg-Ni alloy particles are obtained; and (4) the rare earth element Ce is added to the Mg-Ni alloy particles, short-time high-energy ball milling is conducted under argon protection, and the Mg-Ni alloy particles with the rare earth element Ce embedded in surface are obtained. According to the alloy particles, the activation characteristics and initial hydrolysis reaction dynamic characteristics of a rich-magnesium alloy can be significantly improved, and good modification effect after organization control can bereinforced.

Description

technical field [0001] The invention relates to the technical field of metal materials, in particular to Mg-Ni alloy particles embedded with rare earth element Ce on the surface for hydrogen production by hydrolysis. Background technique [0002] Among the many new energy sources that have been discovered, such as wind energy, tidal energy, water energy, and solar energy, hydrogen energy has attracted more and more attention due to its significant advantages such as high energy storage density, recyclability, and zero emissions. Hydrogen energy is being vigorously promoted. , Establishing a "hydrogen economy" is the development trend of future energy. [0003] The premise of large-scale utilization of hydrogen energy is to solve the three aspects of hydrogen production, storage and utilization. At present, the development of hydrogen storage is lagging behind, which has become a major obstacle to the promotion and utilization of hydrogen energy. In addition, hydrogen can b...

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): B22F1/00B22F9/04C22C19/03C22C23/00C22C30/00C01B3/08
CPCB22F1/0003B22F9/04C22C19/03C22C19/007C22C23/00C22C30/00C01B3/08B22F2009/043Y02P20/133
Inventor 柳翊石磊左寒松张晶安俊超金文中曹永青
Owner LUOYANG INST 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