Synthesis of surface-replicated ultra-thin silica hollow nanofibers using structurally different carbon nanofibers as templates

Taegon Kim, Watanabe Naoki, Jin Miyawaki, Joo Il Park, Chanmin Lee, Hoi Kyoeng Jung, Min Seok Jeon, Hyun Jong Kim, Seong Ho Yoon

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Ultra-thin silica hollow nanofibers were successfully synthesized using three kinds of well-defined carbon nanofibers (CNFs) with different surface structures as effective templates via pyrolysis of polycarbomethylsilane-coated CNFs. The prepared silica hollow nanofibers replicated the characteristic surface morphologies of the CNFs, such as herringbone, platelet, and tubular types with edge or basal planes. Especially, the unique HCNF template, with tiny fibril aggregates on the surface, was the most effective template material for synthesizing ultra-thin silica hollow nanofibers with uniform and hierarchical meso-pores and high surface areas (over than 680 m 2 /g). The chemical and physical properties of the silica nanofibers were evaluated with various analytical techniques, such as TGA, HR-TEM, FE-SEM, XRD, XPS, and N 2 adsorption/desorption, and discussed in detail.

Original languageEnglish
Pages (from-to)21-26
Number of pages6
JournalJournal of Solid State Chemistry
Volume272
DOIs
Publication statusPublished - Apr 2019

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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