Carried catalyst electroplating method for hydrolyzing hydroborates to produce hydrogen

A technology for producing hydrogen and borohydride by hydrolysis, which is applied in the direction of physical/chemical process catalysts, chemical instruments and methods, catalyst activation/preparation, etc. The effect of small size, large active surface and simple preparation method

Inactive Publication Date: 2007-04-18
CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its preparation is through dissolution, adsorption, exchange and other processes, the steps are cumbersome and the process is complicated.
Chinese patent (CN 1565958A) discloses a method of depositing catalysts on porous substrates. The catalysts made in this way will block the pores of the porous carrier. When the reaction occurs, the gas pressure in the pores will increase and the catalysts will fall off easily.

Method used

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  • Carried catalyst electroplating method for hydrolyzing hydroborates to produce hydrogen
  • Carried catalyst electroplating method for hydrolyzing hydroborates to produce hydrogen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] With reference to accompanying drawing 1 and accompanying drawing 2.

[0031] 4gRhSO 4 Dissolve 2g of sulfuric acid in 1 liter of distilled water, heat to 45°C, turn on the stirrer, and place the inert anode and the 5×5cm 2 The nickel mesh is inserted into the solution, the electronic load is adjusted to keep the current constant at 0.5A, the electroplating time is 30 minutes, it is taken out, rinsed with distilled water, and dried naturally to obtain a rhodium catalyst.

Embodiment 2

[0033] 80gPdCl 2 and 2gNH 4 Dissolve Cl in 1L of distilled water, keep the temperature constant at 42°C, turn on the stirrer, and place the inert anode and the 5×5cm plate to be plated 2 The iron grid is inserted into the solution, the electronic load is adjusted to keep the current constant at 0.5A, the electroplating time is 50 minutes, it is taken out, rinsed with distilled water, and dried naturally to obtain a palladium catalyst.

Embodiment 3

[0035] Weigh 2.5g NaOH dissolved in 15mL distilled water, add 3.5gNaBH 4 , and then add the above-mentioned plated catalyst, 8.2 liters of hydrogen can be obtained within 6 minutes, and the average rate of hydrogen generation is 1.37L / min. After the reaction is completed, there are no catalyst particles falling off in the solution. The hydrogen gas generation rate curve is shown in Figure 2. Series 3 is a powder catalyst generated by direct reduction. It can be seen from the figure that the electroplated catalyst has good activity.

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Abstract

An electroplated catalyst for preparing H2 from boron hydride by hydrolysis is characterized by that its active component is carried through electroplating. Its preparing process includes such steps as preparing electroplating solution through dissolving metal salt in distilled water, adding additive, regulating pH value and heating, electroplating the carrier, washing with distilled water, and drying.

Description

technical field [0001] The invention belongs to the technical field of hydrogen energy catalysis, and in particular relates to a method for hydrolyzing borohydride to produce hydrogen, electroplating and carrying a catalyst. Background technique [0002] In recent years, many scholars at home and abroad have been competing to study the hydrogen production by the hydrolysis reaction of metal borohydrides, and have applied for some patents. The hydrogen production process of borohydride hydrolysis is simple, low cost, high hydrogen yield, and the gas generated by the reaction is pure and contains a small amount of water. Its principle is to dissolve metal borohydride in alkaline solution to facilitate preservation, and add metal Catalysts speed up reactions. Amendola loaded Ru onto IRA-400 cationic resin as a catalyst to catalyze hydrogen production from metal borohydrides. Its preparation is through dissolution, adsorption, exchange and other processes, with tedious steps a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J37/02B01J37/34C01B3/04
CPCY02E60/364Y02E60/36
Inventor 金静任丽彬虞靖李勇辉刘浩杰张遥
Owner CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
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