HYDRODYNAMIC VOLTAMMETRY WITH CHANNEL MICROBAND ELECTRODES - ALTERNATING-CURRENT IMPEDANCE MEASUREMENTS
Theoretical expressions are given for the ac impedance of channel microband electrodes operating under laminar flow conditions. The effect of electrode size and solution flow rate is examined and the relative roles of axial diffusion and convective mass transport are identified so that the electrode...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
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1995
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| _version_ | 1797094555253735424 |
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| author | Compton, R Winkler, J |
| author_facet | Compton, R Winkler, J |
| author_sort | Compton, R |
| collection | OXFORD |
| description | Theoretical expressions are given for the ac impedance of channel microband electrodes operating under laminar flow conditions. The effect of electrode size and solution flow rate is examined and the relative roles of axial diffusion and convective mass transport are identified so that the electrode impedance is quantified over the full experimental operating range of any practical electrode. Experiments employing the oxidation of ferrocene in acetonitrile solution at platinum microband channel electrodes are reported and shown to be in good agreement with theory. © 1995 American Chemical Society. |
| first_indexed | 2024-03-07T04:15:38Z |
| format | Journal article |
| id | oxford-uuid:c95192ef-470f-4e29-9300-e99989123fb0 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:15:38Z |
| publishDate | 1995 |
| record_format | dspace |
| spelling | oxford-uuid:c95192ef-470f-4e29-9300-e99989123fb02022-03-27T06:58:21ZHYDRODYNAMIC VOLTAMMETRY WITH CHANNEL MICROBAND ELECTRODES - ALTERNATING-CURRENT IMPEDANCE MEASUREMENTSJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c95192ef-470f-4e29-9300-e99989123fb0EnglishSymplectic Elements at Oxford1995Compton, RWinkler, JTheoretical expressions are given for the ac impedance of channel microband electrodes operating under laminar flow conditions. The effect of electrode size and solution flow rate is examined and the relative roles of axial diffusion and convective mass transport are identified so that the electrode impedance is quantified over the full experimental operating range of any practical electrode. Experiments employing the oxidation of ferrocene in acetonitrile solution at platinum microband channel electrodes are reported and shown to be in good agreement with theory. © 1995 American Chemical Society. |
| spellingShingle | Compton, R Winkler, J HYDRODYNAMIC VOLTAMMETRY WITH CHANNEL MICROBAND ELECTRODES - ALTERNATING-CURRENT IMPEDANCE MEASUREMENTS |
| title | HYDRODYNAMIC VOLTAMMETRY WITH CHANNEL MICROBAND ELECTRODES - ALTERNATING-CURRENT IMPEDANCE MEASUREMENTS |
| title_full | HYDRODYNAMIC VOLTAMMETRY WITH CHANNEL MICROBAND ELECTRODES - ALTERNATING-CURRENT IMPEDANCE MEASUREMENTS |
| title_fullStr | HYDRODYNAMIC VOLTAMMETRY WITH CHANNEL MICROBAND ELECTRODES - ALTERNATING-CURRENT IMPEDANCE MEASUREMENTS |
| title_full_unstemmed | HYDRODYNAMIC VOLTAMMETRY WITH CHANNEL MICROBAND ELECTRODES - ALTERNATING-CURRENT IMPEDANCE MEASUREMENTS |
| title_short | HYDRODYNAMIC VOLTAMMETRY WITH CHANNEL MICROBAND ELECTRODES - ALTERNATING-CURRENT IMPEDANCE MEASUREMENTS |
| title_sort | hydrodynamic voltammetry with channel microband electrodes alternating current impedance measurements |
| work_keys_str_mv | AT comptonr hydrodynamicvoltammetrywithchannelmicrobandelectrodesalternatingcurrentimpedancemeasurements AT winklerj hydrodynamicvoltammetrywithchannelmicrobandelectrodesalternatingcurrentimpedancemeasurements |