Abstract
The H2 can be generated from the aluminum water reaction. Hydrogen generation rate by using aluminum from soft drink was measured by immersing samples in H2SO4, Na2SO4, KOH, and NaOH solutions. No observable amount of hydrogen is generated in acidic or in neutral solutions. At a given concentration, the generation rate of H2 is higher in NaOH solution than in KOH solution. High generation rate of H2 is obtained in concentrated NaOH as well as in concentrated KOH solutions. The gas volume of H2 generation can be fitted into a semi-empirical equation as function of reaction time. The H2 generation rate can be divided into two stages. During the first stage, hydrogen generation rate increases as the reaction continued. It reaches a maximum then gradually reduced in the second stage of reaction.
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