Electrospun poly(vinyl alcohol) as a template of Silica hollow and solid micro-fibrous mats

Yuki Shirosaki, Hiroki Yoshihara, Song Chen, Mark Blevins, Yuri Nakamura, Nobutaka Hanagata, Satoshi Hayakawa, Artemis Stamboulis, Akiyoshi Osaka

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Silica fiber mats were fabricated by soaking electro-spun poly(vinyl alcohol) fibril mat in NH4OH-catalyzed (Stöber type) colloidal silica sol and silica oligomer solution from HCl-catalysis of the system tetraethoxysilane, ethanol, and water, followed by appropriate heat treatments. The silica fibrils from the Stöber silica sol were hollow nano-tubes (NT) consisting of nano-sized silica particles, while the silica nanofibers (NF) from the acid-catalyzed sol were solid with minimal porosity. A model was proposed for the NF and NT formation processes.

Original languageEnglish
Pages (from-to)520-524
Number of pages5
JournalJournal of the Ceramic Society of Japan
Volume120
Issue number1407
DOIs
Publication statusPublished - Nov 2012

Keywords

  • Electrospinning
  • Nanofiber
  • Nanotubes
  • Poly(vinyl alcohol)
  • Silica
  • Sol-gel

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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