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Thermodynamic aspects of the electron transfer across the interface between water and a hydrophobic redox-active ionic liquid
- 1.0367631 - ÚFCH JH 2012 RIV GB eng J - Journal Article
Langmaier, Jan - Samec, Zdeněk
Thermodynamic aspects of the electron transfer across the interface between water and a hydrophobic redox-active ionic liquid.
Electrochimica acta. Roč. 58, - (2011), s. 606-613. ISSN 0013-4686. E-ISSN 1873-3859
R&D Projects: GA ČR GAP206/11/0707; GA ČR GAP206/10/1231
Institutional research plan: CEZ:AV0Z40400503
Keywords : redox-active ionic liquid * membrane * cyclic voltammetry
Subject RIV: CG - Electrochemistry
Impact factor: 3.832, year: 2011
Ion and electron transfer reactions at the interface between a redox-active ionic liquid (IL), (ferrocenylmethyl)dodecyldimethylammonium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate (FcMDDATFPB), and water were investigated by cyclic voltammetry (CV) using the FcMDDATFPB membrane cell. The redox-active IL was shown to exhibit the same ion selectivity as the structurally similar but redox-inactive tridodecylmethylammonium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate. Ion transfer potentials evaluated from CV measurements allowed establishing the scale of absolute potential differences for the interfacial oxidation of FcMDDA+ with the aqueous redox species including IrCl62−, Fe(CN)63−, Mo(CN)83−, ICl2− or IBr2−. In order to rationalize experimental data, the theory of CV was developed for an electron transfer at one membrane interface that is coupled with the ion transfer at the other membrane interface.
Permanent Link: http://hdl.handle.net/11104/0202232
Number of the records: 1