Electroreduction of Chlorine Gas at Platinum Electrodes in Several Room Temperature Ionic Liquids: Evidence of Strong Adsorption on the Electrode Surface Revealed by Unusual Voltammetry in Which Currents Decrease with Increasing Voltage Scan Rates

X.J. Huang; D.S. Silvester; I. Streeter; Leigh Aldous; Christopher Hardacre; R.G. Compton

doi:10.1021/jp8082437

Electroreduction of Chlorine Gas at Platinum Electrodes in Several Room Temperature Ionic Liquids: Evidence of Strong Adsorption on the Electrode Surface Revealed by Unusual Voltammetry in Which Currents Decrease with Increasing Voltage Scan Rates

X.J. Huang, D.S. Silvester, I. Streeter, Leigh Aldous, Christopher Hardacre, R.G. Compton

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

Voltammetry is reported for chlorine, Cl-2, dissolved in various room temperature ionic liquids using platinum microdisk electrodes. A single reductive voltammetric wave is seen and attributed to the two-electron reduction of chlorine to chloride. Studies of the effect of voltage scan rate reveal uniquely unusual behavior in which the magnitude of the currents decrease with increasing scan rates. A model for this is proposed and shown to indicate the presence of strongly adsorbed species in the electrode reaction mechanism, most likely chlorine atoms, Cl*((ads)).

Original language	English
Pages (from-to)	19477-19483
Number of pages	7
Journal	Journal of Physical Chemistry C
Volume	112
Issue number	49
DOIs	https://doi.org/10.1021/jp8082437
Publication status	Published - 11 Dec 2008

ASJC Scopus subject areas

Physical and Theoretical Chemistry
General Energy
Electronic, Optical and Magnetic Materials
Surfaces, Coatings and Films

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Huang, X. J., Silvester, D. S., Streeter, I., Aldous, L., Hardacre, C., & Compton, R. G. (2008). Electroreduction of Chlorine Gas at Platinum Electrodes in Several Room Temperature Ionic Liquids: Evidence of Strong Adsorption on the Electrode Surface Revealed by Unusual Voltammetry in Which Currents Decrease with Increasing Voltage Scan Rates. Journal of Physical Chemistry C, 112(49), 19477-19483. https://doi.org/10.1021/jp8082437

Huang, X.J. ; Silvester, D.S. ; Streeter, I. et al. / Electroreduction of Chlorine Gas at Platinum Electrodes in Several Room Temperature Ionic Liquids: Evidence of Strong Adsorption on the Electrode Surface Revealed by Unusual Voltammetry in Which Currents Decrease with Increasing Voltage Scan Rates. In: Journal of Physical Chemistry C. 2008 ; Vol. 112, No. 49. pp. 19477-19483.

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abstract = "Voltammetry is reported for chlorine, Cl-2, dissolved in various room temperature ionic liquids using platinum microdisk electrodes. A single reductive voltammetric wave is seen and attributed to the two-electron reduction of chlorine to chloride. Studies of the effect of voltage scan rate reveal uniquely unusual behavior in which the magnitude of the currents decrease with increasing scan rates. A model for this is proposed and shown to indicate the presence of strongly adsorbed species in the electrode reaction mechanism, most likely chlorine atoms, Cl*((ads)).",

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Huang, XJ, Silvester, DS, Streeter, I, Aldous, L, Hardacre, C & Compton, RG 2008, 'Electroreduction of Chlorine Gas at Platinum Electrodes in Several Room Temperature Ionic Liquids: Evidence of Strong Adsorption on the Electrode Surface Revealed by Unusual Voltammetry in Which Currents Decrease with Increasing Voltage Scan Rates', Journal of Physical Chemistry C, vol. 112, no. 49, pp. 19477-19483. https://doi.org/10.1021/jp8082437

Electroreduction of Chlorine Gas at Platinum Electrodes in Several Room Temperature Ionic Liquids: Evidence of Strong Adsorption on the Electrode Surface Revealed by Unusual Voltammetry in Which Currents Decrease with Increasing Voltage Scan Rates. / Huang, X.J.; Silvester, D.S.; Streeter, I. et al.
In: Journal of Physical Chemistry C, Vol. 112, No. 49, 11.12.2008, p. 19477-19483.

Research output: Contribution to journal › Article › peer-review

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N2 - Voltammetry is reported for chlorine, Cl-2, dissolved in various room temperature ionic liquids using platinum microdisk electrodes. A single reductive voltammetric wave is seen and attributed to the two-electron reduction of chlorine to chloride. Studies of the effect of voltage scan rate reveal uniquely unusual behavior in which the magnitude of the currents decrease with increasing scan rates. A model for this is proposed and shown to indicate the presence of strongly adsorbed species in the electrode reaction mechanism, most likely chlorine atoms, Cl*((ads)).

AB - Voltammetry is reported for chlorine, Cl-2, dissolved in various room temperature ionic liquids using platinum microdisk electrodes. A single reductive voltammetric wave is seen and attributed to the two-electron reduction of chlorine to chloride. Studies of the effect of voltage scan rate reveal uniquely unusual behavior in which the magnitude of the currents decrease with increasing scan rates. A model for this is proposed and shown to indicate the presence of strongly adsorbed species in the electrode reaction mechanism, most likely chlorine atoms, Cl*((ads)).

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Huang XJ, Silvester DS, Streeter I, Aldous L, Hardacre C, Compton RG. Electroreduction of Chlorine Gas at Platinum Electrodes in Several Room Temperature Ionic Liquids: Evidence of Strong Adsorption on the Electrode Surface Revealed by Unusual Voltammetry in Which Currents Decrease with Increasing Voltage Scan Rates. Journal of Physical Chemistry C. 2008 Dec 11;112(49):19477-19483. doi: 10.1021/jp8082437

Electroreduction of Chlorine Gas at Platinum Electrodes in Several Room Temperature Ionic Liquids: Evidence of Strong Adsorption on the Electrode Surface Revealed by Unusual Voltammetry in Which Currents Decrease with Increasing Voltage Scan Rates

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