Hydrogen generation from water split reaction
AssigneeThe University of British Columbia
InventorAsok C. D. Chaklader
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Abstract
A composite material comprising a mechanical mixture of aluminum oxide(s) and/or aluminum hydroxide(s) and aluminum (Al) metal, which when submerged in water, produces hydrogen gas at or near to neutral pH. The phenomenon has been demonstrated reproducibly. The evolution of hydrogen gas is dependent on several factors, namely, temperature, pH, proportion and particle size of ingredients and mixing conditions. The water split reaction proceeds for the mass ratio of Al to the oxide or hydroxide varying in the entire range up to the 99% of additive(s). The reaction proceeds in a pH range of water, 9>pH>4, and water temperature, from about 10° C. to 90° C.
Claims9
A process of producing hydrogen, which comprises exposing water to a ceramic-metal composite, selected from the group consisting of:
- (a) aluminum oxide (and/or oxides) and aluminum;
- (b) hydrated aluminum oxide (and/or hydroxides) and aluminum;
- and
- (c) combination(s) of (a) and (b) above.
Dependencies are inferred from the claim text.