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On the Volta potential measured by SKPFM - fundamental and practical pects with relevance to corrosion science
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry, Surface and Corrosion Science.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry, Surface and Corrosion Science.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry, Surface and Corrosion Science.ORCID iD: 0000-0002-4431-0671
2019 (English)In: Corrosion Engineering, Science and Technology, ISSN 1478-422X, E-ISSN 1743-2782, Vol. 54, no 3, p. 185-198Article, review/survey (Refereed) Published
Abstract [en]

The Volta potential is an electron-sensitive parameter and describes the ermodynamic propensity of a metal to take part in electrochemical actions. It has found widespread acceptance among corrosion searchers due to its connection to the corrosion potential and its sy measurability in local scale, being often used to study localised rrosion phenomena and micro-galvanic activities. The principle object this paper is to provide a comprehensive, fundamental insight into e meaning of the Volta potential and to define a polarity convention measured potentials by the scanning Kelvin probe force microscopy KPFM) in order to assess local nobilities in microstructures. nditions to relate the Volta potential with the mixed-potential theory e discussed and a possible connection to corrosion phenomena plained. The limitations of the Volta potential as well as the SKPFM chnique are also aimed to be explained, with some practical formation to maximise the output of high quality data.

Place, publisher, year, edition, pages
Taylor & Francis, 2019. Vol. 54, no 3, p. 185-198
Keywords [en]
Volta potential, scanning Kelvin probe force microscopy, Surface potential, Work function, nobility, corrosion
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-248314DOI: 10.1080/1478422X.2019.1583436ISI: 000461631700001Scopus ID: 2-s2.0-85063102596OAI: oai:DiVA.org:kth-248314DiVA, id: diva2:1302582
Note

QC 20190405

Available from: 2019-04-05 Created: 2019-04-05 Last updated: 2019-04-05Bibliographically approved

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Örnek, CemPan, Jinshan

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