Organic Sonoelectrochemistry on Mercury Pool Electrode

[img]PDF - Authorized users only
Language: English
217Kb
Title:Organic Sonoelectrochemistry on Mercury Pool Electrode
Creators:
Klíma, Jiří
Ludvík, Jiří
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 65, 6, pp. 941-953
Uncontrolled Keywords:Electrode activation, Mercury pool electrode, Electrolysis, Cavitation, Sonoelectrochemistry, Ultrasound, Electrochemistry

Abstract

So far, the influence of sonication on the electrolytic current was studied only at solid or rather miniaturized mercury electrodes. The presented paper reports on sonoelectrochemical experiments at a liquid mercury pool electrode. Two sonoelectrochemical cells have been developed and tested. It was shown that during sonication, the electrolytic current increases in a number of individual peaks representing short local enhancements of current density due to vigorous local mass transfer and instantaneous increase of fresh electrode surface. Both these effects are caused by microjets of solution formed during violent unsymmetric collapses of cavitation bubbles in the close vicinity of the electrode surface. The newly formed electrode surface and the decrease in the diffusion layer thickness were estimated and discussed. An example is presented where the sonication is used for destruction of a film of products formed during electrolysis of cysteine, that otherwise rapidly inhibits continuation of the electrode process. <p>

Title:Organic Sonoelectrochemistry on Mercury Pool Electrode
Creators:
Klíma, Jiří
Ludvík, Jiří
Uncontrolled Keywords:Electrode activation, Mercury pool electrode, Electrolysis, Cavitation, Sonoelectrochemistry, Ultrasound, Electrochemistry
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:65
Number:6
Page Range:pp. 941-953
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc20000941UNSPECIFIED
ID Code:1689
Item Type:Article
Deposited On:06 Feb 2009 17:11
Last Modified:06 Feb 2009 16:11

Citation

Klíma, Jiří; Ludvík, Jiří (2000) Organic Sonoelectrochemistry on Mercury Pool Electrode. Collection of Czechoslovak Chemical Communications, 65 (6). pp. 941-953. ISSN 0010-0765

Repository Staff Only: item control page