Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Method for producing hydrogen based on hydrolysis of Mg-Ni-Y alloy containing LPSO second phase

A hydrolysis hydrogen production and alloy technology, applied in the field of hydrogen production, can solve the problems of increasing the cost of hydrogen production, reducing the hydrogen production of magnesium alloys, and environmental pollution of metal ions, so as to reduce the cost of hydrogen production, obtain seawater easily, and simplify hydrogen production The effect of craft

Pending Publication Date: 2022-03-25
CHONGQING UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the solutions to this problem include adding catalysts, replacing the hydrolyzate, etc., but there are generally problems such as reducing the overall hydrogen production and metal ions in the hydrolyzate are likely to cause environmental pollution, which increases the complexity of hydrolysis hydrogen production and increase the cost of hydrogen production
Studies have shown that adding some transition elements or rare earth elements to alloy magnesium can form magnesium alloys such as Mg 2 The second phase such as Cu is used as the cathode to promote the galvanic corrosion of the anode magnesium matrix, thereby improving its hydrolysis hydrogen production performance, but the magnesium content of the second phase is low (less than 50wt.%), which reduces the hydrogen production of magnesium alloys

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
  • Method for producing hydrogen based on hydrolysis of Mg-Ni-Y alloy containing LPSO second phase
  • Method for producing hydrogen based on hydrolysis of Mg-Ni-Y alloy containing LPSO second phase
  • Method for producing hydrogen based on hydrolysis of Mg-Ni-Y alloy containing LPSO second phase

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: A method for hydrogen production based on the hydrolysis of Mg-Ni-Y alloy containing LPSO second phase, the specific steps are as follows:

[0023] At room temperature, 30 mg of Mg-Ni-Y alloy powder containing LPSO second phase was added to 10 mL of simulated seawater (that is, the solid-liquid ratio g:L of Mg-Ni-Y alloy powder containing LPSO second phase to seawater was 3 : 1) The hydrolysis reaction produces hydrogen, and the hydrogen is collected by the drainage method; the chemical composition of the Mg-Ni-Y alloy containing the second phase of LPSO is Mg 96.5 Ni 1.3 Y 2.1 , the phase of Mg-Ni-Y alloy containing LPSO second phase includes Mg phase and long-period stacking structure phase, that is, LPSO phase, and the volume ratio of LPSO phase is 16.8%; the mass concentration of NaCl in simulated seawater is 3.5%;

[0024] The preparation method of the Mg-Ni-Y alloy powder containing LPSO second phase comprises the following specific steps:

[0025...

Embodiment 2

[0030] Embodiment 2: A method for hydrogen production based on the hydrolysis of Mg-Ni-Y alloy containing LPSO second phase, the specific steps are as follows:

[0031] At room temperature, 30 mg of Mg-Ni-Y alloy powder containing LPSO second phase was added to 10 mL of simulated seawater (that is, the solid-liquid ratio g:L of Mg-Ni-Y alloy powder containing LPSO second phase to seawater was 3 : 1) The hydrolysis reaction produces hydrogen, and the hydrogen is collected by the drainage method; the chemical composition of the Mg-Ni-Y alloy containing the second phase of LPSO is Mg 99.25 Ni 0.25 Y0.5 , the phase of the Mg-Ni-Y alloy containing the second LPSO phase includes the Mg phase and the long-period stacking structure phase, that is, the LPSO phase, and the volume ratio of the LPSO phase is 4.9%; the mass concentration of NaCl in the simulated seawater is 3.5%;

[0032] The preparation method of the Mg-Ni-Y alloy powder containing LPSO second phase comprises the followi...

Embodiment 3

[0037] Embodiment 3: A method for hydrogen production based on the hydrolysis of Mg-Ni-Y alloy containing LPSO second phase, the specific steps are as follows:

[0038] At room temperature, 30 mg of Mg-Ni-Y alloy powder containing LPSO second phase was added to 10 mL of simulated seawater (that is, the solid-liquid ratio g:L of Mg-Ni-Y alloy powder containing LPSO second phase to seawater was 3 : 1) The hydrolysis reaction produces hydrogen, and the hydrogen is collected by the drainage method; the chemical composition of the Mg-Ni-Y alloy containing the second phase of LPSO is Mg 95.5 Ni 1.8 Y 2.7 , the phase of the Mg-Ni-Y alloy containing the LPSO second phase includes the Mg phase and the long-period stacking structure phase, that is, the LPSO phase, and the volume ratio of the LPSO phase is 26%; the mass concentration of NaCl in the simulated seawater is 3.5%;

[0039] The preparation method of the Mg-Ni-Y alloy powder containing LPSO second phase comprises the followin...

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 relates to a hydrogen production method based on hydrolysis of an Mg-Ni-Y alloy containing an LPSO second phase, and belongs to the technical field of hydrogen production. According to the method, the Mg-Ni-Y alloy powder containing the LPSO second phase is added into seawater for hydrolysis reaction, and the conversion rate of hydrolysis hydrogen production within 5 min can reach 90% or above; the chemical composition of the Mg-Ni-Y alloy containing the LPSO second phase is Mg100-(2x-3x) NixYx-2x, x is larger than or equal to 0.2 and smaller than or equal to 5, the phase of the Mg-Ni-Y alloy containing the LPSO phase comprises an Mg phase and a long-period stacking structure phase, namely the LPSO phase, and the volume ratio of the LPSO phase is 5%-26%. The LPSO phase in the Mg-Ni-Y alloy serves as the cathode of the micro primary battery, galvanic corrosion of an anode Mg matrix can be accelerated, and therefore hydrolysis of the magnesium alloy is accelerated; the LPSO phase as the magnesium-rich phase can ensure that the magnesium alloy has high hydrogen yield, so that rapid and efficient hydrogen production is realized under mild conditions.

Description

technical field [0001] The invention relates to a method for producing hydrogen based on the hydrolysis of Mg-Ni-Y alloy containing LPSO second phase, belonging to the technical field of hydrogen production. Background technique [0002] The hydrolysis reaction of magnesium can produce high-yield hydrogen (8.2wt%) and occurs under mild conditions, eliminating the need for complex hydrogen storage steps, and the hydrolyzate obtained after the reaction has no pollution to the environment. However, as the hydrolysis reaction proceeds, the generated Mg(OH) 2 will rapidly deposit on densely structured Mg / MgH 2 Passivation of the particle surface results in slow hydrogen desorption kinetics and even stops the hydrolysis reaction. At present, the solutions to this problem include adding catalysts, replacing the hydrolyzate, etc., but there are generally problems such as reducing the overall hydrogen production and metal ions in the hydrolyzate are likely to cause environmental po...

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 Applications(China)
IPC IPC(8): C01B3/08
CPCC01B3/08Y02E60/36
Inventor 李谦谭军鲁杨帆陈玉安潘复生
Owner CHONGQING 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
Eureka Blog
Learn More
PatSnap group products