Publications

Surface-Active Ionic Liquids in Catalytic Water Splitting

Author(s)
Alice Cognigni, Adam Mark Palvoegyi, Christian Schroeder, Herwig Peterlik, Alexander Müllner, Ronald Zirbs, Matthias Weil, Katharina Bica
Abstract

We report the application of surface-active ionic liquids as ligands and optional reaction media in iridium-catalyzed water oxidations. Three novel catalysts with N, N-dialkylimidazolidin-2-ylidene ligands based on amphiphilic imidazolium ionic liquids were synthesized and characterized. Excellent turn-over frequencies of up to 0.92 s(-1) were obtained in catalytic water splitting, and activity was maintained for five consecutive catalytic cycles, with an overall turn-over number of 8967. The addition of external surface-active ionic liquid showed unexpected behaviour, because strongly enhanced initial reaction rates were observed.

Organisation(s)
Department of Computational Biological Chemistry, Dynamics of Condensed Systems, Faculty Center for Nano Structure Research
External organisation(s)
Universität für Bodenkultur Wien, Technische Universität Wien
Journal
Australian Journal of Chemistry
Volume
72
Pages
34-41
No. of pages
8
ISSN
0004-9425
DOI
https://doi.org/10.1071/CH18104
Publication date
2019
Peer reviewed
Yes
Austrian Fields of Science 2012
Physical chemistry, Surface chemistry, Surface physics
Keywords
Portal url
https://ucris.univie.ac.at/portal/en/publications/surfaceactive-ionic-liquids-in-catalytic-water-splitting(122e2737-5d3e-4c6c-a987-27bbfad427f1).html