Funky inorganic fibers

Research output: ThesisPhD Thesis - Research UT, graduation UT

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Abstract

Inorganic porous hollow fibers (IPHF) are interesting for various applications that can benefit from a high surface-area-to-volume ratio. Examples include membranes, catalysts, electrodes, and combinations of these.
The thesis starts with providing an overview of conceivable materials of which IPHF can consist, methods for their production, and their applications. In the subsequent chapter the fabrication of silicon carbide hollow fibers by non-solvent induced phase separation is discussed. After this, a novel production method is introduced for the fabrication of IPHF without the use of organic solvents, such as N-methylpyrrolidone or dimethyl sulfoxide. The method is based on ionic cross-linking of a sodium alginate polymer in order to arrest the inorganic particles. The next part of the thesis is dedicated to the effect of different measurement methods on the measured mechanical strength of alumina porous hollow fibers and the associated statistics of failure.
Finally, the application of the fibers is discussed, starting with the use of electrically conductive silicon carbide-carbon IPHF as a support for a thermally responsive membrane, and the use of IPHF as support material for thin films prepared by interfacial polymerization is discussed.
The thesis finishes with reflections on the main findings and attempts to put the results in perspective. Also, suggestions are given for possible routes for further research, focusing on functional fibers and the application thereof.
Original languageEnglish
Awarding Institution
  • University of Twente
Supervisors/Advisors
  • Benes, N.E., Supervisor
  • Nijmeijer, A., Supervisor
Thesis sponsors
Award date30 Jun 2017
Place of PublicationEnschede
Publisher
Print ISBNs978-90-365-4327-9
DOIs
Publication statusPublished - 30 Jun 2017

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