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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
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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

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