Preparation method of Ru/C catalyst for preparing hydrogen by sodium borohydride hydrolysis

A technology of sodium borohydride and hydrogen production by hydrolysis, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc. The problem of short active life of the catalyst can achieve the effect of long active life, low cost and high mechanical strength.
CN101829564AInactive Publication Date: 2010-09-15EAST CHINA UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
EAST CHINA UNIV OF SCI & TECH
Publication Date
2010-09-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of an Ru / C catalyst for preparing hydrogen by sodium borohydride hydrolysis, belonging to the technical field of portable hydrogen preparation. The preparation method comprises the following step of preparing the Ru / C catalyst by mainly using porous carbon materials as a carrier and using impregnation reduction. The supported Ru / C catalyst with small metal particle sizes and even dispersion is prepared by adding an addition agent in steeping fluid, selecting a proper reducing agent and reducing a pH value. The Ru / C catalyst has large specific area and higher mechanical strength, does not have a breaking phenomenon in a reaction process basically, and displays relatively high reaction activity in the catalytic hydrolysis reaction of a sodium borohydride alkaline solution, meanwhile, the service life (in particular refer to the time of the conversion rate which is larger than 40 percent for catalyzing sodium borohydride to prepare hydrogen) of the catalyst exceeds 150 hours, and the Ru / C catalyst has a better application prospect in the field of portable hydrogen preparation. The preparation method has mild condition, low cost and high productive rate, is beneficial to industrial production, and can not cause environment pollution.
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Description

technical field

[0001] The invention belongs to the technical field of portable hydrogen production, and in particular relates to a preparation method of an efficient and long-lived sodium borohydride hydrolysis Ru / C catalyst for hydrogen production. Background technique

[0002] As an energy source, hydrogen has attracted attention due to its high efficiency and environmental protection, and finding a suitable hydrogen storage method is the key to the effective use of hydrogen energy. At present, there are two main hydrogen storage methods that people study: physical method and chemical method.

[0003] The physical methods mainly include: high-pressure steel cylinder storage and supply method, low-temperature liquefied hydrogen method, glass microsphere storage, activated carbon adsorption storage and transition metal hydride adsorption storage, etc. Compared with physical hydrogen storage, chemical method is an irreversible hydrogen storage method. At present, the main ...

Claims

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