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Transition metal phosphide serving as hydrogen preparation catalyst of hydrolysis reaction of borohydride

A borohydride and transition metal technology, applied in the field of transition metal phosphides as borohydride hydrolysis reaction hydrogen production catalysts, to achieve excellent catalytic efficiency, cycle and thermal stability, broad application prospects, and efficient hydrolysis hydrogen production effect

Active Publication Date: 2017-09-22
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, the transition metal catalysts used to catalyze the hydrolysis of sodium borohydride are mainly borides, alloys, etc., and there is no special report on the use of phosphide transition metals to catalyze the hydrolysis of sodium borohydride. In terms of electrochemical catalytic hydrogen production, phosphorus Transition metals have been shown to have excellent catalytic properties

Method used

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  • Transition metal phosphide serving as hydrogen preparation catalyst of hydrolysis reaction of borohydride
  • Transition metal phosphide serving as hydrogen preparation catalyst of hydrolysis reaction of borohydride
  • Transition metal phosphide serving as hydrogen preparation catalyst of hydrolysis reaction of borohydride

Examples

Experimental program
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Effect test

example 1

[0041] Step 1: Add 20mL of distilled water to the polytetrafluoroethylene lining, control the addition of 0.0146g of hexahydrate and cobalt nitrate, 0.00046g of ammonium fluoride, and 0.015g of urea per milliliter of water, that is, add 0.291g of hexahydrate and cobalt nitrate, 0.093 g ammonium fluoride and 0.30 g urea and stirred until the solids were completely dissolved to form a clear solution.

[0042] Step 2: Put the catalyst substrate titanium mesh into the reaction kettle lining of step 1, and seal the polytetrafluoroethylene lining into a stainless steel mold, place it in a constant temperature drying oven under closed conditions and heat it at 120°C for reaction 6h.

[0043] Step 3: After the reaction is completed, cool down to room temperature with the furnace, then take out the titanium mesh, wash it with distilled water and absolute ethanol in sequence, and place the washed titanium mesh in a vacuum drying oven and dry it in vacuum at 40°C for 24 hours , to obtai...

example 2

[0047] Step 1: Add 36mL of distilled water to the PTFE lining, that is, add 1.45395g of nickel nitrate and 1.4019g of hexamethylenetetramine, and stir until the solids are completely dissolved to form a transparent solution.

[0048] Step 2: Put the catalyst-based carbon fiber cloth into the reactor lining of step 1, seal the polytetrafluoroethylene lining into a stainless steel mold, place it in a constant temperature drying oven under closed conditions, and heat it at 100°C for reaction 10h.

[0049] Step 3: After the reaction is completed, cool down to room temperature with the furnace, then take out the carbon fiber cloth, wash it with distilled water and absolute ethanol in sequence, and place the washed carbon fiber in a vacuum drying oven and dry it in vacuum at 40°C for 24 hours. An array structure of nickel hydroxide is obtained.

[0050] Step 4: Put the precursor prepared in Step 3 in a tube furnace, add phosphorus source sodium hypophosphite, and react at 300°C for...

example 3

[0053] Step 1: Add 90mL of distilled water to the PTFE liner, add 1.21g of ferric nitrate, 1.873g of cobalt nitrate, 10.6g of ammonium fluoride and 1.6g of urea in each milliliter of water and stir until the solids are completely dissolved and form a transparent solution.

[0054] Step 2: Put the catalyst substrate titanium sheet into the reaction kettle lining of step 1, seal the polytetrafluoroethylene lining into a stainless steel mold, place it in a constant temperature drying oven under closed conditions, and heat it at 120°C for reaction 6h.

[0055] Step 3: After the reaction is completed, cool down to room temperature with the furnace, then take out the titanium sheet, wash it with distilled water and absolute ethanol in sequence, and place the washed titanium mesh in a vacuum drying oven and vacuum dry it at 40°C for 24 hours , to obtain the array structure of iron-cobalt hydroxide.

[0056] Step 4: Put the precursor prepared in Step 3 in a tube furnace and add phos...

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Abstract

The invention discloses a transition metal phosphide serving as a hydrogen preparation catalyst of the hydrolysis reaction of borohydride. Compared with the prior art, the transition metal phosphide is applied to the technical field of hydrogen preparation through hydrolysis of sodium borohydride for the first time and to hydrogen preparation through catalytic hydrolysis, and the transition metal phosphide exhibits excellent catalytic efficiency, cycle performance and thermal stability and has broad application prospects.

Description

technical field [0001] The invention belongs to the technical field of hydrogen production by hydrolysis, and more specifically relates to the application of transition metal phosphides as catalysts for hydrogen production by hydrolysis of borohydrides. Background technique [0002] In the 21st century, the increase in energy consumption and the rapid use of fossil fuels have made human beings face the serious problem of developing efficient and sustainable energy. Therefore, in order to realize the sustainable development of human society, it is imminent to develop clean and renewable energy. Hydrogen is a new energy source with high combustion value, high efficiency and cleanness that can replace traditional fossils. However, the current production of hydrogen energy is mainly obtained by reforming coal and natural gas, which will inevitably increase the consumption of non-renewable energy and bring about environmental pollution problems. It is a simple, efficient and sa...

Claims

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Application Information

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IPC IPC(8): C01B3/06B01J27/185
CPCB01J27/1853C01B3/065C01B2203/1005C01B2203/1047C01B2203/1052C01B2203/1058C01P2004/03Y02E60/36
Inventor 孙旭平崔亮
Owner SICHUAN UNIV
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