Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-19T12:00:58.258Z Has data issue: false hasContentIssue false
  • English
  • Français

Aerosol Coating of Silica Fibers with Nanoparticles

Published online by Cambridge University Press:  15 February 2011

George P. Fotou ,
Steven J. Scott  and
Sotiris E. Pratsinis
George P. Fotou
Affiliation:
Department of Chemical Engineering, University of Cincinnati, Cincinnati, OH 45221-0171, USA.
Steven J. Scott
Affiliation:
Department of Chemical Engineering, University of Cincinnati, Cincinnati, OH 45221-0171, USA.
Sotiris E. Pratsinis
Affiliation:
Department of Chemical Engineering, University of Cincinnati, Cincinnati, OH 45221-0171, USA.
Get access

Abstract

Ultrafine silica fibers were coated with nanosized particles by an aerosol process. The fibers were introduced in a diffusion flame reactor where silica particle formation took place by oxidation of SiCl4. Coagulation of particles with fibers resulted in fractal-like structures on the latter, enhancing the specific surface area of the product fibers. Ferrocene used as an additive at a mole fraction of 6.6 × 10−5 in the flame promoted the surface area enhancement. A sol-gel coating technique was also used to produce particle coated fibers.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 344: Symposium I – Materials and Processes for Environmental Protection , 1994 , 27
Copyright
Copyright © Materials Research Society 1994

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Payatakes, A. C., Filtration and Separation, 13, 602 (1976).Google Scholar
2. King, J. K. and Pinto, N. G., J. Chromatogr., 609, 61 (1992).Google Scholar
3. Fotou, G. P. and Pratsinis, S. E. in Ceramic Transactions. Advances in Ceramic- Matrix Composites. edited by Bansal, N. P. (American Ceramic Society, Cincinnati, OH, 1993), pp. 737–747.Google Scholar
4. Fotou, G. P., Pratsinis, S. E. and Baron, P. A., Chem. Eng. Sci., in press (1994).Google Scholar
5. Covino, J. and Wilson, C. in Ultrastructure Processing of Advanced Ceramics edited by Mackenzie, J. and Ulrich, D. (Wiley, New York, 1988), p. 981.Google Scholar
6. Okada, Y., Takeuchi, K., Yamanashi, H. and Ushijima, H., Jpn. J. Appl. Phys., 31, L1255 (1992).Google Scholar
7. Ritrievi, K. E., Longwell, J. P. and Sarofim, A. F., Combust. Flame, 70, 17 (1987).Google Scholar
8. Stober, W., Fink, A. and Bohn, E., J. Colloid Interface Sci., 26, 62 (1968).Google Scholar