A gold-gold oil microtrench electrode for liquid-liquid anion transfer voltammetry.
Two flat gold electrodes are placed vis-à-vis with an epoxy spacer layer that is etched out to give a ca. 100 μm-deep electrochemically active trench. A water-insoluble oil phase, here the redox system N,N-diethyl-N'N'-didodecyl-phenylenediamine (DDPD) in 4-(3-phenylpropyl)-pyridine (PPP),...
| Main Authors: | , , , , , |
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| 格式: | Journal article |
| 语言: | English |
| 出版: |
2013
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| _version_ | 1826268780848742400 |
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| author | Dale, SE Chan, Y Bulman Page, P Barnes, E Compton, R Marken, F |
| author_facet | Dale, SE Chan, Y Bulman Page, P Barnes, E Compton, R Marken, F |
| author_sort | Dale, SE |
| collection | OXFORD |
| description | Two flat gold electrodes are placed vis-à-vis with an epoxy spacer layer that is etched out to give a ca. 100 μm-deep electrochemically active trench. A water-insoluble oil phase, here the redox system N,N-diethyl-N'N'-didodecyl-phenylenediamine (DDPD) in 4-(3-phenylpropyl)-pyridine (PPP), is immobilized into the trench to allow anion transfer upon oxidation of DDPD (oil) to DDP⁺ (oil). In "mono-potentiostatic mode" quantitative transfer/expulsion of anions into the trench oil phase occurs. However, in "bi-potentiostatic mode" feedback currents dominated by rapid plate-to-plate diffusion normal to the electrode surfaces are observed. Comparison of "normal" diffusion and "lateral" diffusion shows that the rate of diffusion-migration charge transport across the oil film is anion hydrophobicity dependent. |
| first_indexed | 2024-03-06T21:14:52Z |
| format | Journal article |
| id | oxford-uuid:3f6ec25e-8305-4343-8ed9-4fd7b0a42bdd |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T21:14:52Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | oxford-uuid:3f6ec25e-8305-4343-8ed9-4fd7b0a42bdd2022-03-26T14:32:00ZA gold-gold oil microtrench electrode for liquid-liquid anion transfer voltammetry.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:3f6ec25e-8305-4343-8ed9-4fd7b0a42bddEnglishSymplectic Elements at Oxford2013Dale, SEChan, YBulman Page, PBarnes, ECompton, RMarken, FTwo flat gold electrodes are placed vis-à-vis with an epoxy spacer layer that is etched out to give a ca. 100 μm-deep electrochemically active trench. A water-insoluble oil phase, here the redox system N,N-diethyl-N'N'-didodecyl-phenylenediamine (DDPD) in 4-(3-phenylpropyl)-pyridine (PPP), is immobilized into the trench to allow anion transfer upon oxidation of DDPD (oil) to DDP⁺ (oil). In "mono-potentiostatic mode" quantitative transfer/expulsion of anions into the trench oil phase occurs. However, in "bi-potentiostatic mode" feedback currents dominated by rapid plate-to-plate diffusion normal to the electrode surfaces are observed. Comparison of "normal" diffusion and "lateral" diffusion shows that the rate of diffusion-migration charge transport across the oil film is anion hydrophobicity dependent. |
| spellingShingle | Dale, SE Chan, Y Bulman Page, P Barnes, E Compton, R Marken, F A gold-gold oil microtrench electrode for liquid-liquid anion transfer voltammetry. |
| title | A gold-gold oil microtrench electrode for liquid-liquid anion transfer voltammetry. |
| title_full | A gold-gold oil microtrench electrode for liquid-liquid anion transfer voltammetry. |
| title_fullStr | A gold-gold oil microtrench electrode for liquid-liquid anion transfer voltammetry. |
| title_full_unstemmed | A gold-gold oil microtrench electrode for liquid-liquid anion transfer voltammetry. |
| title_short | A gold-gold oil microtrench electrode for liquid-liquid anion transfer voltammetry. |
| title_sort | gold gold oil microtrench electrode for liquid liquid anion transfer voltammetry |
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