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Corrosion of copper by water
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Corrosion Science.
2007 (English)In: Electrochemical and solid-state letters, ISSN 1099-0062, E-ISSN 1944-8775, Vol. 10, no 11, C63-C67 p.Article in journal (Refereed) Published
Abstract [en]

We have studied copper corrosion in a system comprised of deionized water, absolute pressure gauges, and a palladium membrane. A transition from O-2-consuming to H-2-evolving copper corrosion is observed, which indicates that copper can corrode by water itself. The equilibrium hydrogen pressure in corrosion of copper by water at 73 degrees C exceeds the steady-state atmospheric hydrogen pressure (5 x 10(-7) bar) by a factor of about 2000. The growth of a hydrogen-containing corrosion product in O-2-free water is controlled by the hydrogen removal from the corroding surface. The results are discussed in the perspective of conventional potential-pH diagram for copper.

Place, publisher, year, edition, pages
2007. Vol. 10, no 11, C63-C67 p.
Keyword [en]
gas-mixtures, pure water, hydrogen, surface, iron, sims
Identifiers
URN: urn:nbn:se:kth:diva-16943DOI: 10.1149/1.2772085ISI: 000249323200009Scopus ID: 2-s2.0-34548509172OAI: oai:DiVA.org:kth-16943DiVA: diva2:334986
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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