Electrochemistry in the presence of convective flow generated by acoustic streaming from a focused ultrasonic source

I. C. Stefan, Y. Mo, C. I. Zanelli, Daniel Alberto Scherson

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Limiting currents for the reduction of hexacyanoferrate-(III), i lim, in aqueous solutions have been recorded in the presence of convective flow generated by a focused acoustic source with its main axis placed normal to the surface of a circular Au electrode embedded in a coplanar Teflon shroud. The results obtained could be fitted to a formula of the type -i lim = a(U z ss) b, where U z ss is the axial velocity of the fluid along the center line of the lens evaluated at the focal point using computer simulation routines developed by Kamakura and co-workers (Kamakura, T.; Matsuda, K.; Kumamoto, Y.; Breazeale, M. A. J. Acoust. Soc. Am. 1995, 97, 2740-2746). The fit yielded a value of b ∼0.5 in agreement with that of rotating disk and impinging jet electrodes.

Original languageEnglish
Pages (from-to)4384-4387
Number of pages4
JournalAnalytical chemistry
Volume73
Issue number17
DOIs
Publication statusPublished - 2001 Sep 1
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry

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