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Fabrication of silica nano wires on the internal perimeter of narrow bore fused silicia tubing by non-isothermal etching
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Analytical Chemistry.
2005 (English)In: Journal of Materials Science, ISSN 0022-2461, E-ISSN 1573-4803, Vol. 40, no 3, 583-589 p.Article in journal (Refereed) Published
Abstract [en]

An method for fabrication of long silica nano wires is presented. The nano structured material is an integral part of the inner surface of narrow bore fused silica capillary tubing. The wire preparation method is based on a hydrothermal action and decomposition of 2-chloro-1,1,2-trifluoroethyl methyl ether at elevated temperature. In our previous work, reproducible nano wire outgrowth could only be accomplished in capillaries with an inner diameter less than 10 mum [1], and the centre of the capillary lumen remained free of wires. In the present article we report on nano wire outgrowth in capillaries with larger inner diameters. These wires are entangled via carbon nucleating particles and stretch across the entire lumen of the capillary. The long nano wire outgrowth was induced by a time dependent, non isothermal etching of the capillaries. Suggested mechanisms for the growth process are discussed.

Place, publisher, year, edition, pages
2005. Vol. 40, no 3, 583-589 p.
Keyword [en]
amorphous silica, gas-chromatography, capillary electrochromatography, hydrogen-fluoride, whisker growth, vapor, nanowires, surface, nanotubes, mechanism
Identifiers
URN: urn:nbn:se:kth:diva-14562ISI: 000227282100005Scopus ID: 2-s2.0-16244384240OAI: oai:DiVA.org:kth-14562DiVA: diva2:332603
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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