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Article Dans Une Revue Electrochemistry Communications Année : 2015

Spectroelectrochemistry on electroactive self-assembled monolayers: Cyclic voltammetry coupled to spectrophotometry

Olivier Alévêque
Eric Levillain
Lionel Sanguinet

Résumé

We present a spectroelectrochemical bench involving an electrochemical/spectrophotometric coupling dedicated to probe electroactive self-assembled monolayers (SAMs). This bench is validated by the study of the oxidation of a 5,5′-disubstituted-2,2′-bithiophene immobilized on Au substrate, producing a reversible dimerization of the radical cation (i.e. ECDim process) leading to a dimer. A direct comparison between thin layer spectroelectrochemistry in solution and spectroelectrochemistry on SAMs shows that a SAM could be viewed as a highly concentrated solution.
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hal-02063332 , version 1 (25-10-2019)

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Olivier Alévêque, Eric Levillain, Lionel Sanguinet. Spectroelectrochemistry on electroactive self-assembled monolayers: Cyclic voltammetry coupled to spectrophotometry. Electrochemistry Communications, 2015, 51, pp.108-112. ⟨10.1016/j.elecom.2014.12.014⟩. ⟨hal-02063332⟩
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