Hostname: page-component-76fb5796d-2lccl Total loading time: 0 Render date: 2024-04-26T02:49:58.927Z Has data issue: false hasContentIssue false
  • English
  • Français

Silica Nanofiber Mats containing Vanadium Pentoxide for Gas Sensing

Published online by Cambridge University Press:  15 February 2011

Jeanne E. Panels  and
Yong L. Joo
Jeanne E. Panels
Affiliation:
School of Chemical & Biomolecular Engineering, Cornell University Ithaca, NY 14853, U.S.A
Yong L. Joo
Affiliation:
School of Chemical & Biomolecular Engineering, Cornell University Ithaca, NY 14853, U.S.A
Get access

Abstract

For the first time, silica nanofiber mats containing vanadium pentoxide crystals have been made via a sol-gel/electrospinning technique without using any polymer binder. XRD analysis after calcination of the fibers indicates the presence of vanadium pentoxide crystals. The average diameter of 20mol%V fibers after calcination at 800°C is 420nm. SEM and TEM images demonstrate crystal growth on the surface of the fibers after calcination at 800°C. XPS analysis also indicates the growth of V2O5 crystals at high enough temperatures. Physisorption of 20mol%V fibers after calcination at 800°C gave a BET surface area of 1.9 m2/g and an average pore diameter of 6 nm.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 876: Symposium A – Nanoporous and Nanostructured Materials for Catalysis, Sensor and Gas Separation Applications , 2005 , R8.62
Copyright
Copyright © Materials Research Society 2005

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. Fong, H. and Reneker, D.H., “6. Electrospinning and the Formation of Nanofibers.” Structure Formation in Polymeric Fibers. 2001, D.R., Salem, Hanser Gardner Publications.Google Scholar
2. Choi, S. et al. , “Silica nanofibers from electrospinning/sol-gel process.” J. Mat. Sci. Letters 22, 891 (2003).Google Scholar
3. Huang, Z.M., Zhang, Y.Z., Kotaki, M., Ramakrishna, S., “A review on polymer nanofibers by electrospinning and their applications in nanocomposites.” Compos. Sci. Technol. 63, 2223 (2003).Google Scholar
4. Viswanathamurthi, P. et al. “Vanadium pentoxide nanofibers by electrospinning.” Scripta Materialia 49, 577 (2003).Google Scholar
5. Klein, L.C., “Part III Continuous, Discontinuous, and Woven Fibers.” Sol-Gel technology for thin films, fibers, performs, electronics, and specialty shapes. 1988.Google Scholar
6. Carotta, M.C. et al. , “Thick-film gas sensors based on vanadium-titanium oxide powders prepared by sol-gel synthesis.” Journal of the European Ceramic Society 24, 1409 (2004).Google Scholar
7. Zhuiykov, S., Wlodarski, W., Li, Y., “Nanocrystalline V205-TiO2 thin-films for oxygen sensing prepared by sol-gel process.” Sensors and Actuators B 77, 484 (2001).Google Scholar
8. Losito, I, Sabbatini, L. and Gardella, J.A. Jr, “Electron, Ion, and Mass Spectroscopy,” Comprehensive Desk Reference of Polymer Characterization and Analysis, 2003, Brady, R.F. Jr, Oxford University Press.Google Scholar
9. Trudeau, M.L., “8. Nanostructured materials for gas reactive applications”, Nanostructured Materials - Processing, Properties and Potential Applications. 2002, Koch, C.C., Noyes Publications.Google Scholar
10. Chase, G.G. and Reneker, D.H., “Nanofibers in Filter Media”, Fluid/Particle Separation Journal, 16, 105 (2004).Google Scholar