Wireless Light-Emitting Electrochemical Rotors

Abstract : Bipolar electrochemistry has been shown to enable and control various kinds of propulsion of nonwired conducting objects: translation, rotation, and levitation. There is a very rapid development in the field of controlled motion combined with other functionalities. Here we integrate two different concepts in one system to generate wireless electrochemical motion of a specifically designed rotor and track its polarization simultaneously by electrochemical light emission. Locally produced hydrogen bubbles at the cathodic pole of the bipolar rotor are the driving force of the motion, whereas [Ru(bpy)3]Cl2 and tripropylamine react at the anodic extremity, thus generating an electrochemiluminescence signal with an intensity directly correlated with the orientation of the rotor arms. This allows in a straightforward way the qualitative visualization of the changing interfacial potential differences during rotation and shows for the first time that light emission can be coupled to autonomously rotating bipolar electrodes.
Type de document :
Article dans une revue
Journal of Physical Chemistry Letters, American Chemical Society, 2017, 8, pp.4930-4934. 〈10.1021/acs.jpclett.7b01899〉
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01617952
Contributeur : Laurent Jonchère <>
Soumis le : mardi 17 octobre 2017 - 11:49:35
Dernière modification le : vendredi 25 mai 2018 - 01:26:45

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Vera Eßmann, Silvia Voci, Gabriel Loget, Neso Sojic, Wolfgang Schuhmann, et al.. Wireless Light-Emitting Electrochemical Rotors. Journal of Physical Chemistry Letters, American Chemical Society, 2017, 8, pp.4930-4934. 〈10.1021/acs.jpclett.7b01899〉. 〈hal-01617952〉

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