“Ionic interactions at the liquid-solid Interface in ionogels studied by FFC NMR” - M. Bielejewski
Abstract:
Ionic interactions at the liquid-solid Interface in ionogels studied by FFC NMR
M. Bielejewski; Polish Academy of Sciences, Poznan, Poland
"Clean energy" referred to methods and materials which can be used to obtain, transport, and transform electric energy is one of the most investigated research fields in recent years. From new materials, we demand not only high performance but also a low impact on natural habitat. The ionogels are one example of solidification methods for electrolytes, which allows us to obtain a functional material with the potential to use in a wide range of electrochemical applications. Its functionality arises from the fact that used low molecular weight gelators to create the gel phase allows thermally reversible solidification of electrolytes. Our investigations [1, 2, 3] found that such materials based on the monosaccharide derivatives display superior ionic conductivity. To understand and predict these systems' properties, it is crucial to know the interactions and dynamics on the molecular level between the solid gelator matrix and the electrolyte solution. We have used the FFC NMR and PFG NMR diffusometry and optical spectroscopy methods to explain the observed aggregation enhanced ionic conductivity effect (AEIC).
[1] M. Bielejewski, A. Puszkarska, J. Tritt-Goc Electrochim. Acta 165 (2015) 122
[2] M. Bielejewski, A. Łapiński, O. Demchuk J. Coll. Interf. Sci 490 (2017) 279
[3] M. Bielejewski, A. Rachocki, J. Kaszyńska, J. Tritt-Goc Phys. Chem. Chem. Phys. 20 (2018) 5803