Interface of Ionic Liquids and Carbon: Ultrathin [C1C1Im][Tf2N] Films on Graphite and Graphene

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autor(en): Rietzler F, Nagengast J, Steinrück HP, Maier F
Zeitschrift: Journal of Physical Chemistry C
Jahr der Veröffentlichung: 2015
Band: 119
Heftnummer: 50
Seitenbereich: 28068-28076
ISSN: 1932-7455


Abstract


We investigated the initial adsorption behavior and growth of thin films of ionic liquid (IL) [CCIm][TfN] on highly ordered pyrolytic graphite (HOPG) and on a full and a fractional graphene layer on Ni(111). We found that the initial adsorption behavior and growth strongly depended on the underlying substrate. On HOPG, the IL forms an initial wetting layer with a coverage of 0.5 ML and anions and cations next to each other in direct contact with the substrate. On a complete graphene layer on Ni(111), the wetting layer has twice the thickness with alternately oriented ion pairs next to each other. On top of these wetting layers, further IL growth occurs in 3D islands, with the island formation being less pronounced on the graphene layer. On the fractional graphene layer on Ni(111), initial IL adsorption preferentially occurs on bare Ni surface areas, with anions on top of cations, followed by 3D island growth on both the bare and the graphene-covered surface regions.



FAU-Autoren / FAU-Herausgeber

Maier, Florian Dr.
Lehrstuhl für Physikalische Chemie II
Nagengast, Jens
Lehrstuhl für Chemische Reaktionstechnik
Rietzler, Florian
Lehrstuhl für Physikalische Chemie II
Steinrück, Hans-Peter Prof. Dr.
Lehrstuhl für Physikalische Chemie II


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


Zitierweisen

APA:
Rietzler, F., Nagengast, J., Steinrück, H.-P., & Maier, F. (2015). Interface of Ionic Liquids and Carbon: Ultrathin [C1C1Im][Tf2N] Films on Graphite and Graphene. Journal of Physical Chemistry C, 119(50), 28068-28076. https://dx.doi.org/10.1021/acs.jpcc.5b09649

MLA:
Rietzler, Florian, et al. "Interface of Ionic Liquids and Carbon: Ultrathin [C1C1Im][Tf2N] Films on Graphite and Graphene." Journal of Physical Chemistry C 119.50 (2015): 28068-28076.

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Zuletzt aktualisiert 2018-10-08 um 05:24