Catalyst of hydrolytic perparing hydrogen by boron hydride and its preparation method

A borohydride and catalyst technology, applied in the field of catalysts, can solve the problems of uncontrollable hydrolysis reaction, increased catalyst cost, unsustainable reaction, etc., and achieves the effects of good catalytic effect, easy forming and low price.

Inactive Publication Date: 2007-07-18
ZHEJIANG UNIV OF TECH
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, metal halides, as catalysts, are easy to dissolve in the solution, and the hydrolysis reaction is uncontrollable, and the catalyst cannot continue to react wi

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
  • Catalyst of hydrolytic perparing hydrogen by boron hydride and its preparation method
  • Catalyst of hydrolytic perparing hydrogen by boron hydride and its preparation method
  • Catalyst of hydrolytic perparing hydrogen by boron hydride and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0034] Example 1

[0035] Weigh 4.30 grams of metallic magnesium powder and 5.70 grams of metallic nickel powder (atomic ratio Mg:Ni=2~2.05:1), put them into a stainless steel ball mill tank, and add an appropriate amount of steel balls (the mass ratio of metal powder and steel balls is 1:5). ~10), ball milled in an argon atmosphere for 60 hours. Every 12 hours, the ball mill is stopped, the alloy is shoveled from the wall of the ball mill, and the ball mill is continued after crushing. The obtained sample was tested by XRD (as shown in Figure 1), and it was mainly composed of Mg 2 It is composed of Ni alloy and a small amount of metallic nickel and magnesium oxide. The SEM images of the sample are shown in Figures 3 and 4, and the size of the sample particles is about 1-10 microns.

Example Embodiment

[0036] Example 2

[0037] Weigh 0.5 g of the alloy sample prepared in Example 1 and immerse it in 10 ml of 1MCoCl 2 After 5 minutes in the solution, the reaction proceeds violently, and the Mg in the alloy will replace the cobalt ion in the solution, coating the surface of the alloy particles with metallic cobalt. At the same time, the original magnesium oxide on the surface of the alloy will generate magnesium hydroxide. The XRD image and SEM image of the sample after surface treatment are shown in Figure 2 and Figure 5 and Figure 6, respectively.

[0038] Will go through CoCl 2 After the surface-treated sample is crushed, add 10ml of 1MNaBH 4 In the -1M NaOH aqueous solution, the hydrogen in the solution is quickly released in the form of hydrogen, as shown in Figure 7.

Example Embodiment

[0039] Example 3

[0040] Weigh the CoCl in Example 2 2 0.4 g of the surface-treated sample is crushed and mixed with 0.1 g of carbon black (acetylene black), 0.1 g of 60% PTFE emulsion and a small amount of water, and then add a small amount of water to stir to form a slurry, and apply to 2×2cm 2 On the foamed nickel substrate, after vacuum drying at 60°C, it can be rolled and cut to form a flake-shaped catalyst.

[0041] Put the catalyst into 10ml 1MNaBH 4 In the -1M NaOH solution, 500 ml of hydrogen can be released in 5 minutes, and the remaining 350 ml of hydrogen can be released in about 5 minutes.

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
Sizeaaaaaaaaaa
Login to view more

Abstract

A catalyst for hydrolyzing boron hydride to prepare H2 has a chemical formula Mgp-xAxNi1-yDy, where A is chosen from Al, Mn, Sn, Ca, Li, B, La and RE mixture, D is chosen from Cu, Ti, Co, Fe, Zr and V, p=1.5-2.5, x=0-1.5 and y=0-0.5. Its preparing process is also disclosed.

Description

(1) Technical field [0001] The invention relates to a catalyst for hydrolyzing borohydride to produce hydrogen. (2) Background technology [0002] Energy is the basis of production and social activities in modern society. At present, the energy consumed by people mainly comes from fossil energy, but the reserves of fossil energy are limited after all, so the development of clean new energy has always been a problem that countries are currently striving to solve. Hydrogen energy is generally considered to be a clean energy source in the future, with the advantages of high energy utilization efficiency and zero emissions. [0003] At present, because the amount of hydrogen used is still relatively small, it is mostly obtained through electrolysis of water or catalytic cracking of hydrocarbons, but this requires a lot of extra energy, and the volumetric energy density of hydrogen is very low and it is difficult to store and carry. These problems have hindered the large-scale ...

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): B01J23/78B01J23/74C01B3/06
CPCY02E60/36
Inventor 王连邦马淳安毛信表朱英红
Owner ZHEJIANG UNIV OF 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