The micro-optical ring electrode: Development of a novel electrode for photoelectrochemistry

School of Engineering

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review

Published

Standard

The micro-optical ring electrode: Development of a novel electrode for photoelectrochemistry. / Pennarun, G I ; Boxall, C ; OHare, D .
Proceedings of the Symposium on Chemical and Biological Sensors and Analytical Electrochemical Methods. ed. / AJ Ricco; P Vanyek; G Horvai; AF Silva. PENNINGTON: ELECTROCHEMICAL SOCIETY INC, 1997. p. 1039-1051.

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review

Harvard

Pennarun, GI, Boxall, C & OHare, D 1997, The micro-optical ring electrode: Development of a novel electrode for photoelectrochemistry. in AJ Ricco, P Vanyek, G Horvai & AF Silva (eds), Proceedings of the Symposium on Chemical and Biological Sensors and Analytical Electrochemical Methods. ELECTROCHEMICAL SOCIETY INC, PENNINGTON, pp. 1039-1051.

APA

Pennarun, G. I., Boxall, C., & OHare, D. (1997). The micro-optical ring electrode: Development of a novel electrode for photoelectrochemistry. In AJ. Ricco, P. Vanyek, G. Horvai, & AF. Silva (Eds.), Proceedings of the Symposium on Chemical and Biological Sensors and Analytical Electrochemical Methods (pp. 1039-1051). ELECTROCHEMICAL SOCIETY INC.

Vancouver

Pennarun GI, Boxall C, OHare D. The micro-optical ring electrode: Development of a novel electrode for photoelectrochemistry. In Ricco AJ, Vanyek P, Horvai G, Silva AF, editors, Proceedings of the Symposium on Chemical and Biological Sensors and Analytical Electrochemical Methods. PENNINGTON: ELECTROCHEMICAL SOCIETY INC. 1997. p. 1039-1051

Author

Pennarun, G I ; Boxall, C ; OHare, D . / The micro-optical ring electrode: Development of a novel electrode for photoelectrochemistry. Proceedings of the Symposium on Chemical and Biological Sensors and Analytical Electrochemical Methods. editor / AJ Ricco ; P Vanyek ; G Horvai ; AF Silva. PENNINGTON : ELECTROCHEMICAL SOCIETY INC, 1997. pp. 1039-1051

Bibtex

@inproceedings{dcc080bc82a74cb186971934e52e837a,

title = "The micro-optical ring electrode: Development of a novel electrode for photoelectrochemistry",

abstract = "The Micro-Optical Ring Electrode (MORE), a novel photoelectrochemical device capable of delivering light via a fibre optic light guide directly to the region of electrochemical measurement. Based on a ring microelectrode and using the insulating material interior to the ring electrode as a light guide, the MORE can therefore be used to conduct microelectrochemical studies of systems with complex photochemistry. Most recently, the MORE has been used in a preliminary study of the photoelectrochemical behaviour of tris(2,2'-bipyridine)ruthenium(II) (Ru(bipy)(3)(2+)) in the presence of the oxidising quenching agent, Fe3+. Chronoamperograms have been recorded at the MORE using increasing concentrations of Fe3+. A direct correlation has been established between the recorded photocurrent and [Fe3+]. A value of the Stern-Volmer constant (k(st)) for the homogeneous quenching of photoexcited Ru(bipy)(3)(2t) by Fe3+ has been obtained from electrochemical measurements conducted using the MORE. The value of k(st) so obtained (0.4 m(3) mol(-1)) compares favourably with the value of the Stern-Volmer constant for the same reaction obtained from fluorescence measurements (0.9 m(3) mol(-1)).",

author = "Pennarun, {G I} and C Boxall and D OHare",

year = "1997",

language = "English",

isbn = "1-56677-147-1",

pages = "1039--1051",

editor = "AJ Ricco and P Vanyek and G Horvai and AF Silva",

booktitle = "Proceedings of the Symposium on Chemical and Biological Sensors and Analytical Electrochemical Methods",

publisher = "ELECTROCHEMICAL SOCIETY INC",

}

RIS

TY - GEN

T1 - The micro-optical ring electrode: Development of a novel electrode for photoelectrochemistry

AU - Pennarun, G I

AU - Boxall, C

AU - OHare, D

PY - 1997

Y1 - 1997

N2 - The Micro-Optical Ring Electrode (MORE), a novel photoelectrochemical device capable of delivering light via a fibre optic light guide directly to the region of electrochemical measurement. Based on a ring microelectrode and using the insulating material interior to the ring electrode as a light guide, the MORE can therefore be used to conduct microelectrochemical studies of systems with complex photochemistry. Most recently, the MORE has been used in a preliminary study of the photoelectrochemical behaviour of tris(2,2'-bipyridine)ruthenium(II) (Ru(bipy)(3)(2+)) in the presence of the oxidising quenching agent, Fe3+. Chronoamperograms have been recorded at the MORE using increasing concentrations of Fe3+. A direct correlation has been established between the recorded photocurrent and [Fe3+]. A value of the Stern-Volmer constant (k(st)) for the homogeneous quenching of photoexcited Ru(bipy)(3)(2t) by Fe3+ has been obtained from electrochemical measurements conducted using the MORE. The value of k(st) so obtained (0.4 m(3) mol(-1)) compares favourably with the value of the Stern-Volmer constant for the same reaction obtained from fluorescence measurements (0.9 m(3) mol(-1)).

AB - The Micro-Optical Ring Electrode (MORE), a novel photoelectrochemical device capable of delivering light via a fibre optic light guide directly to the region of electrochemical measurement. Based on a ring microelectrode and using the insulating material interior to the ring electrode as a light guide, the MORE can therefore be used to conduct microelectrochemical studies of systems with complex photochemistry. Most recently, the MORE has been used in a preliminary study of the photoelectrochemical behaviour of tris(2,2'-bipyridine)ruthenium(II) (Ru(bipy)(3)(2+)) in the presence of the oxidising quenching agent, Fe3+. Chronoamperograms have been recorded at the MORE using increasing concentrations of Fe3+. A direct correlation has been established between the recorded photocurrent and [Fe3+]. A value of the Stern-Volmer constant (k(st)) for the homogeneous quenching of photoexcited Ru(bipy)(3)(2t) by Fe3+ has been obtained from electrochemical measurements conducted using the MORE. The value of k(st) so obtained (0.4 m(3) mol(-1)) compares favourably with the value of the Stern-Volmer constant for the same reaction obtained from fluorescence measurements (0.9 m(3) mol(-1)).

M3 - Conference contribution/Paper

SN - 1-56677-147-1

SP - 1039

EP - 1051

BT - Proceedings of the Symposium on Chemical and Biological Sensors and Analytical Electrochemical Methods

A2 - Ricco, AJ

A2 - Vanyek, P

A2 - Horvai, G

A2 - Silva, AF

PB - ELECTROCHEMICAL SOCIETY INC

CY - PENNINGTON

ER -

Research