Adsorption of Benzotriazole on the Surface of Copper Alloys Studied by SECM and XPS

Kirsi Mansikkamäki, Ulla Haapanen, Christoffer Johans, Kyösti Kontturi, Mika Valden

    Research output: Contribution to journalArticleScientificpeer-review

    55 Citations (Scopus)

    Abstract

    The formation of inhibitive benzotriazole films on copper and copper alloyed with silver has been studied with scanning electrochemical
    microscopy (SECM) and X-ray photoelectron spectroscopy (XPS). The SECM measurements showed that the film grows
    rapidly on oxygen-free dehydrated copper (OF-HC) and that the rate depends on the substrate potential. The benzotriazole films
    were also observed on silver alloyed copper; however, electropolishing prevents film growth by enriching the surface with silver.
    XPS results show that the film consisted of [Cu(I)–BTA] on both materials. No evidence of [Ag(I)–BTA] was found.
    Original languageEnglish
    Article number0013-4651/2006/153(8)/B311/8/
    Pages (from-to)B311-B318
    Number of pages7
    JournalJournal of the Electrochemical Society
    Volume153
    Issue number8
    DOIs
    Publication statusPublished - 13 Jun 2006
    MoE publication typeA1 Journal article-refereed

    Keywords

    • SECM
    • copper alloys
    • adsorption
    • corrosion inhibition

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