Interface Controls Spontaneous Crystallization in Thin Films of the Ionic Liquid [C2C1Im][OTf] on Atomically Clean Pd(111)

Schernich S, Wagner V, Taccardi N, Wasserscheid P, Laurin M, Libuda J (2014)

Publication Type: Journal article

Publication year: 2014

Journal

Langmuir American Chemical Society

Publisher: American Chemical Society

Book Volume: 30

Pages Range: 6846--6851

Volume: 30

Issue: 23

Journal Issue: 23

DOI: 10.1021/la500842c

Abstract

A total of 5$-$30 monolayer thick films of the ionic liquid (IL) [C2C1Im][OTf] were vaporized in vacuo onto an atomically clean Pd(111) single crystal surface at 220 K. Time- and temperature-resolved infrared reflection$-$absorption spectroscopy reveals growth, interactions with the metallic support, and the macroscopic phase behavior of the layer. At 220 K, the IL layer first grows in the form of a glassy phase. Crystallization of the IL was witnessed above a critical thickness of about 10 monolayers. On the basis of the known bulk crystal structure of the IL, we suggest the formation of well-oriented checkerboard-like crystalline film structures on the surface. The preferential orientation manifested by the crystal phase with regard to the macroscopic metallic surface is attributed to strong interactions between anionic headgroups and the metal.

Authors with CRIS profile

Stefan Schernich Professur für Physikalische Chemie Valentin Wagner Lehrstuhl für Chemische Reaktionstechnik Nicola Taccardi Lehrstuhl für Chemische Reaktionstechnik Peter Wasserscheid Lehrstuhl für Chemische Reaktionstechnik Mathias Laurin Lehrstuhl für Physikalische Chemie II Jörg Libuda Professur für Physikalische Chemie

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials

How to cite

APA:

Schernich, S., Wagner, V., Taccardi, N., Wasserscheid, P., Laurin, M., & Libuda, J. (2014). Interface Controls Spontaneous Crystallization in Thin Films of the Ionic Liquid [C2C1Im][OTf] on Atomically Clean Pd(111). Langmuir, 30(23), 6846--6851. https://doi.org/10.1021/la500842c

MLA:

Schernich, Stefan, et al. "Interface Controls Spontaneous Crystallization in Thin Films of the Ionic Liquid [C2C1Im][OTf] on Atomically Clean Pd(111)." Langmuir 30.23 (2014): 6846--6851.

BibTeX: Download