Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
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TY - GEN
T1 - Electrochemical study of rose bengal at the electrochemical quartz crystal microbalance
AU - Andrieux, F. P.L.
AU - Boxall, C.
PY - 2007/12/1
Y1 - 2007/12/1
N2 - We present the results of an Electrochemical Quartz Crystal Microbalance study of the dark electrochemical behavior of rose bengal on gold piezoelectrodes in phosphate buffer at pH=7. Five oxidation and two reduction peaks were identified. The first oxidation process (Epox1=0.52V) is attributed to the formation of a Charge Transfer Complex (CTC) of rose bengal. The second process (Epox2=0.76V) is due to the partial breakdown of that CTC. The third process (Epox3=1.12V) is the electrochemical formation of a rose bengal polymer. Peak four (Epox4=1.24V) is due to the electrochemistry of the underlying gold surface, whilst peak five (Ep ox5=1.45V) is attributed to a process that facilitates transpassive polymerization. The first reduction peak (Epred1=0.42V) is due to gold oxide stripping and the second (Epred2=0.36V) is the reduction of residual charge transfer complex formed in the first oxidation process.
AB - We present the results of an Electrochemical Quartz Crystal Microbalance study of the dark electrochemical behavior of rose bengal on gold piezoelectrodes in phosphate buffer at pH=7. Five oxidation and two reduction peaks were identified. The first oxidation process (Epox1=0.52V) is attributed to the formation of a Charge Transfer Complex (CTC) of rose bengal. The second process (Epox2=0.76V) is due to the partial breakdown of that CTC. The third process (Epox3=1.12V) is the electrochemical formation of a rose bengal polymer. Peak four (Epox4=1.24V) is due to the electrochemistry of the underlying gold surface, whilst peak five (Ep ox5=1.45V) is attributed to a process that facilitates transpassive polymerization. The first reduction peak (Epred1=0.42V) is due to gold oxide stripping and the second (Epred2=0.36V) is the reduction of residual charge transfer complex formed in the first oxidation process.
U2 - 10.1149/1.2790392
DO - 10.1149/1.2790392
M3 - Conference contribution/Paper
AN - SCOPUS:45549105063
SN - 9781604238822
T3 - ECS Transactions
SP - 67
EP - 77
BT - ECS Trancsactions - Organic and Biological Electrochemistry General Oral and Poster Session
PB - The Electrochemical Society
T2 - Organic and Biological Electrochemistry General Oral and Poster Session - 211th ECS Meeting
Y2 - 6 May 2007 through 11 May 2007
ER -