An SFG/DFG investigation of CN− adsorption at an Au electrode in 1-butyl-1-methyl-pyrrolidinium bis(trifluoromethylsulfonyl) amide ionic liquid - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Electrochemistry Communications Année : 2010

An SFG/DFG investigation of CN− adsorption at an Au electrode in 1-butyl-1-methyl-pyrrolidinium bis(trifluoromethylsulfonyl) amide ionic liquid

Benedetto Bozzini
  • Fonction : Auteur
Bertrand Busson
Christophe Humbert
Adriana Ispas
  • Fonction : Auteur
Claudio Mele
  • Fonction : Auteur
Abderrahmane Tadjeddine

Résumé

In this paper we report an SFG/DFG investigation of the adsorption of CN À-used as a probe molecule to study the electrochemical double-layer structure-at a polycrystalline Au electrode in 1-butyl-1-methyl-pyrrolidinium bis(trifluoromethylsulfonyl) amide ([BMP][TFSA]) room-temperature ionic liquid (RTIL). The adsorption of CN À yielded single SFG and DFG bands in the range from ca. 2125 to 2135 cm À1 , exhibiting a Stark tuning of ca. 3 cm À1 V À1. Vibrational resonances-corresponding to modes of the RTIL coad-sorbed with CN À , were found in the range from ca. 1200 to 1500 cm À1. The study of the double-layer structure was complemented by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) measurements, from which the differential double-layer capacity (C DL) was estimated.

Dates et versions

hal-02111101 , version 1 (13-05-2019)

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Citer

Benedetto Bozzini, Andreas Bund, Bertrand Busson, Christophe Humbert, Adriana Ispas, et al.. An SFG/DFG investigation of CN− adsorption at an Au electrode in 1-butyl-1-methyl-pyrrolidinium bis(trifluoromethylsulfonyl) amide ionic liquid. Electrochemistry Communications, 2010, 12 (1), pp.56-60. ⟨10.1016/j.elecom.2009.10.035⟩. ⟨hal-02111101⟩
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