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Portable all-solid hydrogen production material as well as preparation method and application thereof

A portable, hydrogen material technology, applied in the production of hydrogen and other directions, can solve the problems of reducing the hydrogen production per unit mass of materials, inconvenient carrying, storage, transportation, and inability to use existing systems, and achieve the reduction of actual water consumption, Hydrogen source and the effect of miniaturization, portability and ease of operation

Active Publication Date: 2015-05-27
苏州清德氢能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Among them, the water used to prepare hydrogen by hydrolysis is liquid water. When using liquid water for hydrolysis to produce hydrogen, it is necessary to allow water to fully soak the hydrogen-producing solid. Therefore, the actual amount of water used is much higher than the amount of water consumed by the hydrogen production reaction. The amount of hydrogen produced per unit mass of material is reduced; at the same time, it is necessary to mix liquid water with hydrogen-producing substances during hydrogen production, which is inconvenient to operate
[0005] There is no disclosure in the prior art that the raw materials used to prepare hydrogen are all solid raw materials. At the same time, the hydrogen production per unit mass of material is relatively low, and the hydrogen production operation is troublesome, and no matter what method is used to prepare hydrogen, it also brings carrying, Inconvenience in storage and transportation, let alone ready-to-use

Method used

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  • Portable all-solid hydrogen production material as well as preparation method and application thereof
  • Portable all-solid hydrogen production material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Mix 1g Al with 8.5g Na 2 B 4 o 7 10H 2O (the molar ratio is 5:3) was added into the mortar and ground into a uniform powder, and then the two were mixed evenly, and dichloromethane was added, and the composite material was obtained by ultrasonic vibration. Put the composite material into a flask, heat it to 55°C, and collect the hydrogen gas generated by the drainage and gas collection method. 1.2L hydrogen gas can be released within 25 minutes, which is 98% of the theoretical hydrogen production.

Embodiment 2

[0041] Mix 1g Mg with 3.4g AlCl 3 ·6H 2 O (3:1 molar ratio) was added into a mortar and ground into a uniform powder, and then the two were mixed evenly, and the composite material was obtained by ball milling under a hydrogen atmosphere. The composite material was heated to 150°C, and the generated hydrogen was collected by the drainage and gas collection method, and 0.78L (0.066L / g) of hydrogen was generated within 10 minutes, which was equivalent to 84% of the theoretical hydrogen production.

[0042] In the same way, calcium Ca, lithium Li, sodium Na, and potassium K can also be used as solid matter that reacts with water to emit hydrogen, and the method for the molar ratio of solid matter and water-containing solid matter that reacts with water to emit hydrogen is according to the method described in the summary of the invention The method is determined.

Embodiment 3

[0044] 1g CaH 2 with 2.2g Na 4 P 2 o 7 10H 2 O (molar ratio 5:1) was added into a mortar and ground into a uniform powder, and then the two were mixed evenly, and cyclohexane was added to assist stirring evenly, and the composite material was obtained after removing the solvent. The composite material was put into a flask, heated to 40°C, and the generated hydrogen was collected by the drainage and gas collection method. 0.922L of hydrogen was generated within 30 minutes, which was 88% of the theoretical hydrogen production.

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Abstract

The invention belongs to the field of hydrogen production materials, and particularly relates to a portable all-solid hydrogen production material as well as a preparation method and application thereof. The all-solid hydrogen production material comprises a solid matter reacting with water to release hydrogen and a water-containing solid matter in a molar ratio of (1-12): (1-3). Water required for hydrolysis is provided by the water-containing solid for the first time; and the two solids are sufficiently mixed at a hydrogen desorption temperature, so that the hydrogen production matters comes into contact with water molecules more uniformly, then the actual water consumption for hydrolysis is greatly reduced and the hydrogen production quantity of a unit mass material is improved. Meanwhile, the hydrogen production material is all-solid, so additional water is not needed; and the temperature in the hydrogen production process can be controlled, so that the hydrogen production material is more convenient to carry and operate, and the hydrogen source of a hydrogen fuel battery is more compact and smaller.

Description

technical field [0001] The invention belongs to the field of hydrogen production materials, and in particular relates to a portable all-solid hydrogen production material and its preparation method and application. Background technique [0002] As a new type of energy, the development of hydrogen has attracted great attention from everyone, especially the application of hydrogen in fuel cells, which has brought great convenience to everyone's life. [0003] There are many methods for preparing hydrogen in the prior art, among which hydrolysis, photocatalysis, reaction of active metals or their compounds with liquid water, etc. are commonly used. For example, the Chinese patent with application number 201110116872.0, the Chinese patent with application number 201310316276.6, and the Chinese patent with application number 201310453486.X all use photocatalytic method to prepare hydrogen; the Chinese patent with application number 201110273730.5 has application number 2013107177...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/06C01B3/08
CPCY02E60/36
Inventor 郑捷李星国陈均熊义富
Owner 苏州清德氢能源科技有限公司
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