Scanning electrochemical microscopy: diffusion controlled approach curves for conical AFM-SECM tips
Leonhardt, Kelly, Avdic, Amra, Lugstein, Alois, Pobelov, Ilya, Wandlowski, Thomas, Gollas, Bernhard and Denuault, Guy (2013) Scanning electrochemical microscopy: diffusion controlled approach curves for conical AFM-SECM tips. Electrochemistry Communications, 27, 29-33. (doi:10.1016/j.elecom.2012.10.034).
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Description/Abstract
The diffusion controlled response of conical AFM-SECM probes is presented. Accurate expressions are given which describe the dependence of the probe current on the tip radius and aspect ratio, insulating sheath radius and tip–substrate distance for positive feedback and hindered diffusion. A procedure is proposed to determine the tip dimensions from the experimental approach curves.
| Item Type: | Article |
|---|---|
| ISSNs: | 1388-2481 (print) |
| Related URLs: | |
| Keywords: | SECM AFM Conical electrode Approach curve Diffusion control |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Faculty of Natural and Environmental Sciences > Chemistry > Electrochemistry |
| Item ID: | 345912 |
| Date Deposited: | 05 Dec 2012 15:34 |
| Last Modified: | 26 Apr 2013 07:40 |
| Contributors: | Leonhardt, Kelly (Author) Avdic, Amra (Author) Lugstein, Alois (Author) Pobelov, Ilya (Author) Wandlowski, Thomas (Author) Gollas, Bernhard (Author) Denuault, Guy (Author) |
| Date: | February 2013 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/345912 |
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