Quantitative characterisation of current-induced diffusion layers at cation-exchange membranes. II. Determinination of diffusion-layer thickness and concentration polarisation in dependence on current density

1975 ◽  
Vol 2 (4) ◽  
pp. 304-313 ◽  
Author(s):  
D. Lerche
Keyword(s):  
Cation Exchange ◽  
Layer Thickness ◽  
Diffusion Layer ◽  
Current Density ◽  
Diffusion Layer Thickness ◽  
Diffusion Layers ◽  
Quantitative Characterisation ◽  
Concentration Polarisation

Organic Sonoelectrochemistry on Mercury Pool Electrode

2000 ◽  
Vol 65 (6) ◽  
pp. 941-953 ◽  
Author(s):  
Jiří Klíma ◽  
Jiří Ludvík
Keyword(s):  
Mass Transfer ◽  
Layer Thickness ◽  
Diffusion Layer ◽  
Current Density ◽  
Electrode Surface ◽  
Diffusion Layer Thickness ◽  
Local Mass Transfer ◽  
Electrolytic Current ◽  
Mercury Electrodes ◽  
Instantaneous Increase

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.

Exchange Current Density and Diffusion Layer Thickness in Molten LiCl-KCl Eutectic: A Modeling Perspective for Pyroprocessing of Metal Fuels

2016 ◽  
Vol 195 (3) ◽  
pp. 253-272 ◽  
Author(s):  
Suddhasattwa Ghosh ◽  
Krishan Kumar ◽  
Aligati Venkatesh ◽  
P. Venkatesh ◽  
Bandi Prabhakara Reddy
Keyword(s):  
Layer Thickness ◽  
Diffusion Layer ◽  
Current Density ◽  
Exchange Current ◽  
Exchange Current Density ◽  
Diffusion Layer Thickness ◽  
And Diffusion
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