Abstract
The self passivation of aluminum in water generally prevents the generation of hydrogen from an aluminum-water reaction in conditions preferred for portable systems. However the corrosion rate of aluminum powders and thin foils is seen to greatly increase when in contact with alumina powder. This allows commercially useful amounts of hydrogen to be generated at moderate temperatures and neutral pH regions. Data is presented to support the claim that proton availability from the alumina surface is responsible for the increased hydrogen evolution rates, and hydrogen capture tests show passivation no longer stops the corrosion reaction.
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