| 摘要 |
A method and compositions for producing hydrogen by water split reaction, at near neutral pH conditions and without requiring preheating of the reactant materials. Metallic aluminum in particulate form is blended particulate with a water-soluble inorganic salt that causes progressive pitting of the aluminum to prevent passivation and a particulate metal oxide initiator that raises the temperature of the reactant material upon exposure to water to a level which initiates reaction of water with the metallic aluminum to generate hydrogen. The metal oxide initiator may be an oxide of a Group II metal, such as calcium oxide. The catalyst may be a water soluble inorganic salt having an aggressive anion, such as the halides, sulfites, sulfates and nitrates of Group I and Group II metals, with sodium chloride being preferred. The particles of metallic aluminum are discrete from but blended with those of the salt and oxide. Blending may be performed in a drum or other mixer, and the metal component may be combined with the catalyst and initiator previously or in a reactor just prior to reaction. The reaction initiates upon adding water, and is capable of generating hydrogen at both low and elevated pressures. The reaction products can be recycled or disposed of safely through ordinary channels.
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