Publications in Scientific Journals:
M. Kronstein, K. Kriechbaum, J. Akbarzadeh, H. Peterlik, M.-A. Néouze:
"Irreversible thermochromism in copper chloride Imidazolium Nanoparticle Networks";
Physical Chemistry Chemical Physics,
15
(2013),
12717
- 12723.
English abstract:
In this work Imidazolium Nanoparticle Networks (INNs) with chloride counter-ions were used to complex copper dichloride. This complexation reaction leads to the formation of a green material. The properties of the copper INN material were compared to: first, copper imidazolium complexes, without the presence of silica nanoparticles, which are not thermochromic; second, chloride-containing INN material. The copper INN material showed irreversible thermochromic behaviour, with a clear colour change from green to yellow at 180 °C, which is due to a configuration change of the copper complex from planar to tetragonal. This structural change was studied using DSC and in situ SAXS measurements during heat treatment. The thermochromic material is stable under air up to 250 °C. This preliminary study opens the door of optical sensors for INN materials.
"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
http://dx.doi.org/10.1039/C3CP50430A
Related Projects:
Project Head Marie-Alexandra Néouze:
Ionische Verknüpfung von Nanopartikeln
Created from the Publication Database of the Vienna University of Technology.