An in situ UV-vis and IR spectroelectrochemical study of the deposition of a hydroquinone anion salt on platinum electrodes from dichloromethane solutions |
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| Authors: | Ali Babaei AJames McQuillan |
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| Institution: | Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand |
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| Abstract: | Cyclic voltammetry with a platinum electrode of hydroquinone (BQH2) solutions in dichloromethane, containing tetrabutylammonium perchlorate supporting electrolyte, shows a sharp asymmetric irreversible oxidation peak at about ?0.3 V (SCE). This feature is seen, in addition to the expected features in this system, when the cycle is extended to potentials more negative than ?0.6 V (SCE). Cyclic voltammetry, in situ UV-vis and infrared spectroelectrochemistry have shown that hydroquinone anion (BQH?) is formed at negative potentials and this appears to arise via surface decomposition of hydroquinone to p-benzosemiquinone (BQH | |
| Keywords: | Spectroelectrochemistry Hydroquinone Pt electrode Cyclic voltammetry Dichloromethane Electrodeposition |
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