Abstract
The spontaneous chemical evolution of H 2 gas on aluminum in an alkaline medium is established as a steady-state consecutive first order reaction. The weight loss, H 2 gas evolution rates and an assessment of the adsorbed, Al-H ad intermediate enroute to H 2 gas evolution are corroborated in the proposed mechanism. The H ad, uptake by aluminum is evaluated, while the increase in the activation energy of corroding aluminum at various stages of H 2 gas evolution suggests blistering and flaking of the Al surface.
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