During the summer, a new paper1 appeared in ChemElectroChem in the memorial issue to Jeam-Michel Saveant. which looks at the influence the solvent has on generation of H2O2 at a liquid|liquid interface. This is the latest paper in a long series of articles in the collaboration between Opałło and Hubert Girault in Lausanne. Our former group member Wojtek was an active part in that collaboration and is a co-author of the present publication.
In this article, the main goal was to investigate what happens to H2O2 generation at the interface between a room-temperature ionic liquid (RTIL) and water with different ILs. The RTILs were characterised by their viscosity and the difference in potential between the DMFc redox potential and the two-electron oxygen reduction potential. A weak correlation was found between this difference and the H2O2 flux, measured using SECM, indicating kinetic control of the reaction rather than mass transport limitation.
- J. Kalisz, W. Nogala, W. Adamiak, M. Gocyla, H. H. Girault, M. Opallo
The Solvent Effect on H2O2 Generation at Room Temperature Ionic Liquid|Water Interface.
ChemPhysChem 22, 1352-1360. (link)