Journal article
Voltammetry in gas phase environments
Journal of electroanalytical chemistry (Lausanne, Switzerland), Vol.384(1), pp.5-17
1995
DOI: 10.1016/0022-0728(94)03728-L
Abstract
Cyclic voltammetric studies of solvent vapors were performed to investigate the possibilities and limitations of electrochemistry in a gas phase environment. No electrochemical response occurs unless the solvent adsorbs across the insulator between the electrodes. Ionic contact is maintained by autoprotolytic and acid-base reactions of the adsorbed solvent and trace impurities (e.g. water). In autoprotolytic solvents, ion concentration is not substantially enhanced by acid-base reactions. The electrochemical signal in ion-generating solvents corresponds to faradaic processes; inert solvents generate simple capacitive responses. Electrolysis signals increase with autoprotolysis constant; a minimum dielectric constant of 5–10 is needed to allow electrolysis. Based on the Frumkin correction, the electrolysis of solvent ions as well as solvent molecules may contribute to the current.
Details
- Title: Subtitle
- Voltammetry in gas phase environments
- Creators
- Yun FangJohna Leddy
- Resource Type
- Journal article
- Publication Details
- Journal of electroanalytical chemistry (Lausanne, Switzerland), Vol.384(1), pp.5-17
- Publisher
- Elsevier B.V
- DOI
- 10.1016/0022-0728(94)03728-L
- ISSN
- 1572-6657
- eISSN
- 1873-2569
- Language
- English
- Date published
- 1995
- Academic Unit
- Chemistry
- Record Identifier
- 9984216688302771
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