caa a22 4500 477050905 CHVBK 20180405111340.0 cr unu---uuuuu 170330e19960801xx s 000 0 eng 10.1007/BF00683739 doi (NATIONALLICENCE)springer-10.1007/BF00683739 Voltammetry in the presence of ultrasound: mass transport effects [Elektronische Daten] [R. Compton, J. Eklund, S. Page, T. Mason, D. Walton] The voltammetry of various well-defined systems in acetonitrile solution has been studied using both micro and macroelectrodes in the presence of power ultrasound. A simple model is established which quantifies the mass transport observed under these conditions; this assumes that the effect of ultrasound is to promote mixing within the bulk of the solution up to within a certain distance of the electrode surface. Thus the ultrasound serves to thin the diffusion layer which would exist at the corresponding electrode under silent conditions. The relative enhancement of transport limited currents by ultrasound is dependent on the size of the electrode; for micrometre-sized electrodes the steady state limiting current observed tends to that predicted under silent conditions whereas for large electrodes a thin, steady-state diffusion layer is seen with a thickness which is power dependent. In addition to steady-state experiments, a.c. impedance measurements and potentials steps are used to verify the model proposed. Chapman & Hall, 1996 Compton R. Physical Chemistry Laboratory, Oxford University, South Parks Road, OXI 3QZ, Oxford, Great Britain aut Eklund J. Physical Chemistry Laboratory, Oxford University, South Parks Road, OXI 3QZ, Oxford, Great Britain aut Page S. Physical Chemistry Laboratory, Oxford University, South Parks Road, OXI 3QZ, Oxford, Great Britain aut Mason T. School of Natural and Environmental Sciences, Coventry University, Priory Street, CV1 5FB, Coventry, Great Britain aut Walton D. School of Natural and Environmental Sciences, Coventry University, Priory Street, CV1 5FB, Coventry, Great Britain aut Journal of Applied Electrochemistry Kluwer Academic Publishers 26/8(1996-08-01), 775-784 0021-891X 26:8<775 1996 26 10800 https://doi.org/10.1007/BF00683739 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00683739 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Compton R. Physical Chemistry Laboratory, Oxford University, South Parks Road, OXI 3QZ, Oxford, Great Britain aut NATIONALLICENCE 700 1- Eklund J. Physical Chemistry Laboratory, Oxford University, South Parks Road, OXI 3QZ, Oxford, Great Britain aut NATIONALLICENCE 700 1- Page S. Physical Chemistry Laboratory, Oxford University, South Parks Road, OXI 3QZ, Oxford, Great Britain aut NATIONALLICENCE 700 1- Mason T. School of Natural and Environmental Sciences, Coventry University, Priory Street, CV1 5FB, Coventry, Great Britain aut NATIONALLICENCE 700 1- Walton D. School of Natural and Environmental Sciences, Coventry University, Priory Street, CV1 5FB, Coventry, Great Britain aut NATIONALLICENCE 773 0- Journal of Applied Electrochemistry Kluwer Academic Publishers 26/8(1996-08-01), 775-784 0021-891X 26:8<775 1996 26 10800 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer