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

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Details zur Publikation

Autor(en): Schernich S, Wagner V, Taccardi N, Wasserscheid P, Laurin M, Libuda J
Zeitschrift: Langmuir
Verlag: American Chemical Society
Jahr der Veröffentlichung: 2014
Band: 30
Heftnummer: 23
Seitenbereich: 6846--6851
ISSN: 0743-7463
eISSN: 1520-5827


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.



FAU-Autoren / FAU-Herausgeber

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


Zusätzliche Organisationseinheit(en)
Exzellenz-Cluster Engineering of Advanced Materials


Zitierweisen

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://dx.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.

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