The role of alumina in aluminum corrosion and passivation

J. Skrovan, T. Troczynski, A. Alfantazi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

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.

Original languageBritish English
Title of host publicationCorrosion (General) - 217th ECS Meeting
Pages157-169
Number of pages13
Edition24
ISBN (Electronic)9781566778503
DOIs
StatePublished - 2010

Publication series

NameECS Transactions
Number24
Volume28
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

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