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 | Nanotech 2007 Vol. 4
Technical Proceedings of the 2007 NSTI Nanotechnology Conference and Trade Show, Volume 4
Chapter 1: Nanoscale Characterization |
| | Nanoparticle Formation in Supercritical Fluids – The World’s First Real Time In-situ Investigation | | Authors: | H. Jensen, M. Bremholm, R.P. Nielsen, K.D. Joensen, Y-S Chen, J. Almer, E.G. Søgaard, B.B. Iversen and S.B. Iversen | | Affilation: | SCF-Technologies, DK | | Pages: | 13 - 15 | | Keywords: | nanoparticles, supercritical, in-situ, WAXS, SAXS | | Abstract: | In this study the world’s first real time in-situ simultaneous small angle x-ray scattering (SAXS) and wide angle x-ray scattering (WAXS) characterization of supercritical nanoparticle formation was performed. In previous supercritical studies the reaction is treated as a ‘black box’ and the final product has been used to understand the process. In this study we open up the black box and directly reveal the mechanism behind sol-gel reactions in supercritical CO2. The brilliance of the APS source and the design of the supercritical reaction chambers played a critical role in successfully exploring the key parameters in the formation of high quality nanoparticles in supercritical fluids. By the current set-up the supercritical sol-gel nanoparticle formation can be controlled and altered by changing the process parameters. This means that the particle properties can be tailor-made by fine-tuning the process parameters. |  | View paper | | ISBN: | 1-4200-6376-6 |
| Pages: | 768 |
| Hardcopy: | $199.99 |
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