The invention relates to a sodium borohydride matrix composite used for generating hydrogen by hydrolysis The sodium borohydride matrix composite is characterized in that an inducer (metal hydride MHx, salt or other borohydride) and a sodium borohydride mixture are taken as starting material, and a hydrogen storage composite with the particle size of micron, submicron or nanometer is obtained in a mechanical ball mill manner The sodium borohydride matrix composite provided by the invention greatly improves the dynamic performance in hydrogen generation by hydrolysis of sodium borohydride, can realize instant and on-line hydrogen generation under more moderate conditions, is high in yield and rate of hydrogen generation, and is suitable for supplying high-purity hydrogen source for fuel cells, electric motor cars and the like

Sodium borohydride matrix composite used for generating hydrogen by hydrolysis

Device for generating hydrogen through powder hydrolysis

The invention relates to a portable hydrogen generator and a method for producing hydrogen by hydroboron, which has high hydrogen producing speed and high safety. The method is characterized in that the hydrogen producing hydroboron is a mixture formed by mixing the hydrogen producing hydroboron with boron and oxygen compounds according to the B atom molar ratio of 1:(4-0.5); and the hydrogen generator is provided with an air bag and/or a mechanical stirring device which is driven by utilizing pressure change under the hydrogen producing mixture in a hydrogen producing mixture storing seal container. The invention overcomes the defects of hydrolysis hydrogen preparation by a hydroboron caustic alkali solution and hydrogen preparation by using catalyst and has high hydrogen producing speed by reaction with water and can finish the reaction in 3-10 seconds; and the hydrogen producing mixture is safe and stable at normal temperature and normal pressure without automatically discharging hydrogen, therefore, the hydrogen producing mixture can be stored for a long time. The portable hydrogen generator has the advantages of simple equipment and convenient carrying and use; and because the stirring or creeping device is arranged under the position for storing the reaction hydrogen producing mixture, the portable hydrogen generator has high safety and is more beneficial to complete and thorough reaction.

Method for producing hydrogen by hydroboron and portable hydrogen generator

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Method for producing hydrogen by hydroboron and portable hydrogen generator