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Application of ultrasound in electrochemistry - design of experimental arrangement
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SYSNO ASEP 0338305 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Application of ultrasound in electrochemistry - design of experimental arrangement Title Využití ultrazvuku v elektrochemii - návrh experimentálního uspořádání Author(s) Klíma, Jiří (UFCH-W) RID Source Title Book of Abstracts COST Action D32 Final Meeting. - Krakow : Department of Chemistry and Technology of Polymers, Krakow University of Technology, 2009 - ISBN 978-83-928784-0-7 Pages s. 43-44 Number of pages 2 s. Action COST Action D32 Final Meeting "Chemistry in high-energy microenvironments" Event date 30.03.2009-30.03.2009 VEvent location Krakow Country PL - Poland Event type EUR Language eng - English Country PL - Poland Keywords sonoelectrochemistry ; sonication ; sonochemistry Subject RIV CG - Electrochemistry CEZ AV0Z40400503 - UFCH-W (2005-2011) Annotation Sonication can influence electrochemical processes mainly by several mechanisms. Whereas acoustic streaming can reduce the thickness of diffusion layer to several micrometers, the turbulent movement can reduce it to about 1 micro m. Only the mass transfer enhancement due to microjects can result in a decrease of diffusion layer thickness far under one micrometer up to about 1 micro m. Moreover, pressure pulses evoked by microjects can result in activation of the electrode by removing passivating films and absorbed products from the electrode surface. That is why the generation of the highest possible number of microjects is desirable when an intense sonoelectrochemical effect is wanted. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2010
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