Nanoparticle formation in supercritical fluids -The world's first real time in - Situ investigation
| Autor: | Jensen, H., Martin Bremholm, Nielsen, R. P., Joensen, K. D., Chen, Y. S., Almer, J., Søgaard, E. G., Birkedal, H., Iversen, B. B., Iversen, S. B. |
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| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | Jensen, H, Bremholm, M, Nielsen, R P, Joensen, K D, Chen, Y S, Almer, J, Søgaard, E G, Birkedal, H, Iversen, B B & Iversen, S B 2007, Nanoparticle formation in supercritical fluids-The world's first real time in-Situ investigation . in 2007 NSTI Nanotechnology Conference and Trade Show-NSTI Nanotech 2007, Technical Proceedings . vol. 4, pp. 13-15, 2007 NSTI Nanotechnology Conference and Trade Show-NSTI Nanotech 2007, Santa Clara, CA, United States, 20/05/2007 . Scopus-Elsevier |
| Popis: | 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 CO 2. 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. |
| Databáze: | OpenAIRE |
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