SALBECK, J (1992) AN ELECTROCHEMICAL-CELL FOR SIMULTANEOUS ELECTROCHEMICAL AND SPECTROELECTROCHEMICAL MEASUREMENTS UNDER SEMIINFINITE DIFFUSION CONDITIONS AND THIN-LAYER CONDITIONS. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 340 (1-2). pp. 169-195. ISSN 0022-0728,
Full text not available from this repository.Abstract
A combination cell to accomplish simultaneous electrochemical and spectroelectrochemical measurements under both thin-layer and semi-infinite diffusion conditions is described and characterized. Fibre optics and a reflective electrode are used to couple the cell to the spectrophotometer. This allows different electrode materials to be used. Moreover, the cell is thermostatically controlled and equipped with a magnetic stirrer, and can be used for temperatures down to -40-degrees-C. The application of electrochemical pulse and sweep techniques are demonstrated. Dynamic spectroelectrochemical techniques such as linear sweep and cyclic voltabsorptometry (LSVA and CVA) as well as the corresponding derivative voltabsorptometric techniques derivative linear voltabsorptometry (DLSVA) and derivative cyclic voltabsorptometry (DCVA) are also applicable under thin-layer conditions. DLSVA and DCVA are the optical analogues of linear sweep and cyclic voltammetry. No epoxy cement or other sealing compounds are required and the solution comes in contact with only quartz, Teflon and the electrodes. Under aprotic conditions the cell response is in accordance with theory down to a solution thickness of 15 mum, where rapid exhaustive electrolysis intrinsic to thin-layer electrochemistry can be achieved in less than 1 s.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | OPTICALLY TRANSPARENT ELECTRODES; UV/VIS-SPECTROELECTROCHEMISTRY; FLUORESCENT DYES; BEHAVIOR; PERYLENEBISDICARBOXIMIDES; CYCLOVOLTAMMETRY; OXIDATION; SYSTEM; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:44 |
| URI: | https://pred.uni-regensburg.de/id/eprint/54279 |
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