Wert, Stefan and Fussstetter, Alexander and Iffelsberger, Christian and Matysik, Frank-Michael (2020) Scanning Electrochemical Microscopy of Electrically Heated Wire Substrates. MOLECULES, 25 (5): 1169. ISSN , 1420-3049
Full text not available from this repository. (Request a copy)Abstract
We report a new configuration for enhancing the performance of scanning electrochemical microscopy (SECM) via heating of the substrate electrode. A flattened Pt microwire was employed as the substrate electrode. The substrate was heated by an alternating current (AC), resulting in an increased mass transfer between the wire surface and the bulk solution. The electrochemical response of the Pt wire during heating was investigated by means of cyclic voltammetry (CV). The open circuit potential (OCP) of the wire was recorded over time, while varied heating currents were applied to investigate the time needed for establishing steady-state conditions. Diffusion layer studies were carried out by performing probe approach curves (PACs) for various measuring modes of SECM. Finally, imaging studies of a heated substrate electrode surface, applying feedback, substrate generation/tip collection (SG/TC), and the competition mode of SECM, were performed and compared with room temperature results.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | HYBRIDIZATION DETECTION; DNA HYBRIDIZATION; ELECTRODE; CORROSION; SECM; MICROELECTRODES; VOLTAMMETRY; DEPOSITION; SURFACE; hot-wire electrochemistry; scanning electrochemical microscopy; SECM; heated electrodes |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik > Instrumentelle Analytik (Prof. Frank-Michael Matysik) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 29 Mar 2021 12:29 |
| Last Modified: | 29 Mar 2021 12:29 |
| URI: | https://pred.uni-regensburg.de/id/eprint/44990 |
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