CdS nanocubes formed in phosphatidylcholin-based template phases
- The paper is focused on the characterization and use of phosphatidylcholine (PC)-based inverse microemulsions as a template phase for the CdS nanoparticle formation. The optically clear, isotropic phase in the oil corner was identified as a "classicalö water-in-oil microemulsion by means of NMR-diffusion measurements. Because of the very small dimensions of the water droplets, the isotropic phase shows a Newtonian-like flow behavior, and adequate amounts of bulk water cannot be detected by DSC. It is demonstrated that this w/o microemulsion can be used successfully as a nanoreactor for the formation of CdS nanoparticles with diameters of 4-5 nm. During the following process of solvent evaporation the individual small CdS nanoparticles aggregate to significant larger cubic nanoparticles, with an edge length of 2-40 nm, arranged in well-defined mosaic-like superstructures. In presence of SDS the nanocubes were stable up to 800 °C. It has to be stated here that polyelectrolytes prevent the formation of such well-ordered superstructures.
Author details: | Joachim KoetzORCiDGND, Nicole Jagielski, Sabine KosmellaGND, Alwin Friedrich, Erich KleinpeterORCiDGND |
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URL: | http://www.sciencedirect.com/science/journal/09277757 |
DOI: | https://doi.org/10.1016/j.colsurfa.2006.01.013 |
ISSN: | 0927-7757 |
Publication type: | Article |
Language: | English |
Date of first publication: | 2006/10/05 |
Publication year: | 2006 |
Release date: | 2017/03/25 |
Volume: | 288 |
Number of pages: | 36 |
First page: | 43 |
Last Page: | 1-3 |
Source: | Colloids and Surfaces A-Physicochemical and engineering aspects. - ISSN 0927-7757 - 288 (2006), 1-3, S. 36 - 43 |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie |
Peer review: | Referiert |