Journalartikel

Jahr der Veröffentlichung: 2008

Seiten: 5761-5769

Zeitschrift: Journal of Materials Chemistry

Bandnummer: 18

Heftnummer: 47

ISSN: 0959-9428

DOI Link: https://doi.org/10.1039/b808770a

Verlag: Royal Society of Chemistry

Abstract: 
Lamellar structures of alternating sheets of crystalline V2O5 (shcherbinaite) and cations from certain imidazolium-based ionic liquids (IL) (e.g. 1-ethyl-3-methyl-imidazolium tetrafluoroborate) were obtained starting from VOCl3. Surprisingly, growth along the [100] direction of shcherbinaite is suppressed due to the intercalation of the IL cations, which can be attributed to the higher charge density perpendicular to this plane compared to other crystallographic planes. In the lamellar nanostructure, V2O5 consists of sheets with just one single unit cell in the [100] direction (i.e. perpendicular to the sheets). Owing to the strong interaction with the imidazolium rings, crystallization of vanadium oxide occurs at relatively moderate temperature of ca. 100 degrees C. Depending on the heat treatment, diverse vanadium oxide nanostructures can be obtained from the lamellar IL-V2O5 nanocomposite, namely V2O5, V2O3 and VO2. The structure of the materials was characterized by X-ray scattering, scanning (SEM) and transmission electron microscope (TEM) and X-ray photoelectron spectroscopy (XPS).

Harvard-Zitierstil: Kaper, H., Willinger, M., Djerdj, I., Gross, S., Antonietti, M. and Smarsly, B. (2008) IL-assisted synthesis of V2O5 nanocomposites and VO2 nanosheets, Journal of Materials Chemistry, 18(47), pp. 5761-5769. https://doi.org/10.1039/b808770a

APA-Zitierstil: Kaper, H., Willinger, M., Djerdj, I., Gross, S., Antonietti, M., & Smarsly, B. (2008). IL-assisted synthesis of V2O5 nanocomposites and VO2 nanosheets. Journal of Materials Chemistry. 18(47), 5761-5769. https://doi.org/10.1039/b808770a