Hydrogen storage material, preparation and use thereof

A technology of hydrogen storage materials and water-absorbing materials, applied in the field of hydrogen storage materials, can solve the problems of hydrophilic materials losing the function of guiding fluid, hindering the further reaction of solid hydrides, reducing the hydrogen production rate of solid hydrides, etc., to avoid special requirements , Simplified operation, simplified equipment

Inactive Publication Date: 2008-12-24
HANERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And because it contains a catalyst, it is not easy to control the reaction rate
And during the reaction process, borate is formed to settle at the junction of the hydrophilic material area and the solid hydride area, so that the hydrophilic material loses the role of guiding the fluid, hinders the further reaction of the solid hydride, and reduces the hydrogen production of the solid hydride Rate

Method used

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  • Hydrogen storage material, preparation and use thereof
  • Hydrogen storage material, preparation and use thereof

Examples

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Embodiment 1

[0029] Hydrogen storage material: sodium borohydride 100g, polypropylene-based water-absorbing resin material 2g;

[0030] Preparation method: uniformly mix sodium borohydride and polypropylene-based water-absorbing resin material to obtain hydrogen storage material;

[0031] The method for preparing hydrogen by using the hydrogen storage material: inject 500g of water into the hydrogen storage material, and sodium borohydride and part of the water undergo a hydrolysis reaction to generate hydrogen gas; the water-absorbing material absorbs part of the water and the hydrolyzed solution of sodium borohydride to form Gel-like material.

Embodiment 2

[0033] Hydrogen storage material: sodium borohydride 100g, cellulose xanthate superabsorbent material 25g;

[0034] Preparation method: uniformly mix sodium borohydride and cellulose xanthate superabsorbent material to obtain hydrogen storage material;

[0035] The method for preparing hydrogen by using the hydrogen storage material: inject 500g of water into the hydrogen storage material, and sodium borohydride and part of the water undergo a hydrolysis reaction to generate hydrogen gas; the water-absorbing material absorbs part of the water and the hydrolyzed solution of sodium borohydride to form Gel-like material.

Embodiment 3

[0037] Hydrogen storage material: Potassium borohydride 100g, cellulose grafted acrylamide super absorbent material 0.1g;

[0038] Preparation method: mix potassium borohydride and cellulose grafted acrylamide superabsorbent material evenly to obtain hydrogen storage material;

[0039] The method for preparing hydrogen by using the hydrogen storage material: inject 500g of water into the hydrogen storage material, and potassium borohydride reacts with part of the water to generate hydrogen gas; the water-absorbing material absorbs part of the water and the hydrolyzed solution of potassium borohydride to form Gel-like material.

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Abstract

The invention discloses a hydrogen storage material for fuel cell, a preparation method and the usage thereof. The hydrogen storage material comprises a borohydride and an absorption material and has advantages of stable performance, easy storage and carry which can control the releasing speed of the hydrogen without filtering the prepared hydrogen and belong to the field of fuel cell.

Description

technical field [0001] The invention relates to a hydrogen storage material for a fuel cell, in particular to a hydrogen storage material for a fuel cell capable of controlling the release rate of hydrogen. The present invention also relates to the preparation method and application of the above-mentioned hydrogen storage material. Background technique [0002] Sodium borohydride is a commonly used complex hydride, which was first synthesized by Schlesinger et al. in 1942. Due to its excellent reducibility and wide range of uses, it has been widely used in industrial production in the European and American markets, but in my country The scope of use is still very small, and there is still room for expansion. [0003] US Patent No. 6 358 488 reports a method for generating hydrogen by using nickel, cobalt or hydrogen storage alloy powder to catalyze the hydrolysis of sodium borohydride. The reaction equation is as follows: [0004] NaBH 4 +2H 2 O→4H 2 +NaBO 2 [0005] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/02
Inventor 肖钢侯晓峰刘宾虹李洲鹏
Owner HANERGY TECH
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