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2 August 2021 Electrochemical TERS for the resolution of complex reaction mechanisms
Alice Fiocco, Laure Fillaud, Emmanuel Maisonhaute, Jean-Marc Noël, Ivan T. Lucas
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Proceedings Volume 11803, Enhanced Spectroscopies and Nanoimaging 2021; 1180309 (2021) https://doi.org/10.1117/12.2599126
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States
Abstract
The reactivity of electrochemically-active molecular architectures immobilized on electrode surfaces was investigated by electrochemical-TERS, at relatively high potential sweep rate and on broad potential ranges. A complex electrochemical mechanism, involving reaction intermediates and multiple reaction paths, could be resolved on electroactive architectures based on nitrobenzene derivatives. Further EC-TERS investigations on these derivatives assembled as mono- or multilayers on the electrode surface emphasized the influence of the structure of the molecular assemblies on their reactivity. Under specific conditions, azo bonds formation between nitrobenzene derivatives observed by TERS can result from the electrochemical polarization/reaction, and not from photochemical processes.
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Alice Fiocco, Laure Fillaud, Emmanuel Maisonhaute, Jean-Marc Noël, and Ivan T. Lucas "Electrochemical TERS for the resolution of complex reaction mechanisms", Proc. SPIE 11803, Enhanced Spectroscopies and Nanoimaging 2021, 1180309 (2 August 2021); https://doi.org/10.1117/12.2599126
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KEYWORDS
Electrodes
Molecular assembly
Liquids
Plasmonics
Polarization
Raman spectroscopy
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