Preparation of hydrogen-storage material used for fuel cell

A technology of hydrogen storage materials and fuel cells, which is applied in fuel cells, circuits, electrical components, etc., can solve the problems of difficult control of reaction speed, loss of the role of hydrophilic materials in guiding fluid, and hindrance of further reaction of solid hydrides, etc., to achieve Reduce the amount of addition, easy to operate, and improve the effect of conversion rate

Inactive Publication Date: 2008-08-27
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 sol

Method used

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  • Preparation of hydrogen-storage material used for fuel cell
  • Preparation of hydrogen-storage material used for fuel cell

Examples

Experimental program
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Effect test

Embodiment 1

[0025]Hydrogen storage material: sodium borohydride 100g, sodium hydroxide 38g, hydroxyethyl cellulose superabsorbent material 22g, catalyst potassium chloroplatinate K 2 PtCl 6 4.5g;

[0026] Preparation method: Sodium borohydride, sodium hydroxide, hydroxyethyl cellulose superabsorbent material, catalyst potassium chloroplatinate K 2 PtCl 6 well mixed;

[0027] The method for preparing hydrogen using the hydrogen storage material: inject 500g of water into the hydrogen storage material, sodium borohydride and sodium hydroxide dissolve to form an alkaline solution, and the water-absorbing material absorbs the alkaline solution to form a gel-like hydrogen storage material; catalyst Potassium chloroplatinate K 2 PtCl 6 It is reduced to metal platinum by sodium borohydride and evenly distributed in the alkaline solution of sodium borohydride. Under the action of metal platinum, sodium borohydride is hydrolyzed to produce hydrogen.

Embodiment 2

[0029] Hydrogen storage material: sodium borohydride 100g, sodium hydroxide 0.01g, cellulose xanthate superabsorbent material 25g, catalyst nickel powder 30g;

[0030] Preparation method: uniformly mix sodium borohydride, sodium hydroxide, cellulose xanthate superabsorbent material, and catalyst nickel powder to obtain hydrogen storage material;

[0031] The method for preparing hydrogen using the hydrogen storage material: inject 500g of water into the hydrogen storage material, sodium borohydride and sodium hydroxide dissolve to form an alkaline solution, and the water-absorbing material absorbs the alkaline solution to form a gel-like hydrogen storage material; catalyst Evenly distributed in the alkaline solution of sodium borohydride, under the action of the catalyst, the sodium borohydride is hydrolyzed to produce hydrogen.

Embodiment 3

[0033] Hydrogen storage material: Potassium borohydride 100g, sodium hydroxide 2g, cellulose grafted acrylamide super absorbent material 0.1g, catalyst cobalt powder 45g;

[0034] Preparation method: Mix potassium borohydride, sodium hydroxide, cellulose-grafted acrylamide superabsorbent material, and catalyst cobalt powder evenly to obtain hydrogen storage material;

[0035] The method for preparing hydrogen by using the hydrogen storage material: injecting 500g of water into the hydrogen storage material, dissolving potassium borohydride and sodium hydroxide to form an alkaline solution, and the water-absorbing material absorbs the alkaline solution to form a gel-like hydrogen storage material; The catalyst is evenly distributed in the alkaline solution of potassium borohydride, and under the action of the catalyst, the potassium borohydride is hydrolyzed to generate hydrogen.

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Abstract

The invention discloses a method for preparing hydrogen storage materials for fuel cells, which belongs to the field of fuel cells. The method includes uniformly mixing borohydride, hydroxide, water absorption materials and a catalyst. Hydrogen storage materials prepared according to the method provided by the invention have the advantages of stable property, easy storage and portability, which can control hydrogen releasing speed without filtering prepared hydrogen.

Description

technical field [0001] The invention relates to a method for preparing a hydrogen storage material for a fuel cell, in particular to a method for preparing a hydrogen storage material for a fuel cell capable of controlling the release rate of hydrogen. 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 catalyzing the hydrolysis of sodium borohydride using nickel, cobalt or hydrogen storage alloy powder. The reaction equation is as follows: [0004] NaBH 4 +2H 2 O→4H 2 +NaBO 2 [0005] This hydrogen supply method has the following advantages: (1) Sodium borohydride hy...

Claims

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Application Information

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IPC IPC(8): C01B3/06H01M8/00
CPCY02E60/362Y02E60/50Y02E60/36
Inventor 刘宾虹李洲鹏侯晓峰肖钢
Owner HANERGY TECH
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