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Dispersion of silver particles in aqueous solutions visualized by polarography/voltammetry
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SYSNO ASEP 0329257 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Dispersion of silver particles in aqueous solutions visualized by polarography/voltammetry Title Disperze stříbrných částic ve vodných roztocích sledované polarograficky/voltametricky Author(s) Korshunov, A. (RU)
Heyrovský, Michael (UFCH-W) RIDSource Title Electrochimica acta. - : Elsevier - ISSN 0013-4686
Roč. 54, č. 26 (2009), s. 6264-6268Number of pages 5 s. Language eng - English Country GB - United Kingdom Keywords silver ions ; silver particles ; dropping mercury electrode ; hanging mercury drop electrode Subject RIV CG - Electrochemistry R&D Projects IAA400400806 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000270646600020 DOI 10.1016/j.electacta.2009.05.084 Annotation The State of silver particles in aqueous dispersions and the course of their coagulation can be followed on voltammetric curves recorded with hanging mercury drop electrode. Sharp irregular cathodic current peaks produced by partial electroreduction of the species adsorbed on the surface of silver particles during their fortuitous impingements upon the electrode surface appear in time sequence on the curves. A change in the electrochemical behavior of silver sols in the time course of particles aggregation and growth was interpreted in agreement with the data of UV–vis spectroscopy and electron microscopy observations. 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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