129Xe NMR Spectroscopy of Supported Ionic Liquids

Tavera Méndez CL, Aguero Gamboa P, Zhai Z, Hantal G, Wisser FM, Smith AS, Koller TM, Hartmann M, Wisser D (2026)

Publication Type: Journal article

Publication year: 2026

Journal

Journal of Physical Chemistry C American Chemical Society

Book Volume: 130

Pages Range: 5151-5161

Journal Issue: 14

DOI: 10.1021/acs.jpcc.5c07975

Abstract

In ¹²⁹Xe NMR spectroscopy, gaseous xenon is used as a sensitive probe for the structural and textural investigation of porous materials. The chemical shift is responsive to the pore sizes and surface chemistry in a wide range of industrially relevant materials. However, many applications of porous materials necessitate the interaction of a liquid with the pore surface. Little is known about the behavior of xenon in such systems. Supported ionic liquid phase (SILP) catalysts are a promising class of new catalysts, achieved by impregnating a suitable porous solid support with a combination of an ionic liquid (IL) and a catalytically active metal complex. In general, a thin, homogeneous film covering the surface is advantageous for many applications. Using ¹²⁹Xe as a probe nucleus detected by ¹²⁹Xe NMR spectroscopy, combined with quantitative xenon physisorption isotherms, different environments can be discerned in the SILP, namely, xenon adsorbed on the bare silica surface and xenon adsorbed on an immobilized IL phase. Moreover, we found that the behavior of xenon and its mobility depend intricately on the nature of the IL and its interactions with the support.

Authors with CRIS profile

Cindy Ly Tavera Méndez Interface Research and Catalysis (ECRC) Ziwen Zhai Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP) György Hantal Physics Underlying Life Science (PULS) Florian Wisser Sonderforschungsbereich 1411/2 Produktgestaltung disperser Systeme (SFB 1411) Ana-Suncana Smith Physics Underlying Life Science (PULS) Thomas Manfred Koller Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP) Martin Hartmann Lehrstuhl für Katalyse und nachhaltige Verfahren Dorothea Wisser Professur für Katalyse

How to cite

APA:

Tavera Méndez, C.L., Aguero Gamboa, P., Zhai, Z., Hantal, G., Wisser, F.M., Smith, A.-S.,... Wisser, D. (2026). 129Xe NMR Spectroscopy of Supported Ionic Liquids. Journal of Physical Chemistry C, 130(14), 5151-5161. https://doi.org/10.1021/acs.jpcc.5c07975

MLA:

Tavera Méndez, Cindy Ly, et al. "129Xe NMR Spectroscopy of Supported Ionic Liquids." Journal of Physical Chemistry C 130.14 (2026): 5151-5161.

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