Fabrication, characterization and Raman study of anatase-TiO2 nanorods by a heating-sol-gel template process

Lei Miao, Sakae Tanemura, Shoichi Toh, Kenji Kaneko, Masaki Tanemura

Research output: Contribution to journalArticle

121 Citations (Scopus)

Abstract

Densely assembled TiO2 nanorods with a diameter of 150-200nm and a length of several micrometers have been synthesized by a heating-sol-gel template process. The obtained nanorods were characterized to be single anatase-phase by X-ray diffraction. Transmission electron microscopy image revealed that the nanorods were the aggregate of many nanocrystallites with ∼10nm in diameter and indistinct polygonal shape. Selected-area electron diffraction and energy dispersive X-ray spectroscopy results confirmed that the obtained nanorods were anatase-phase with good compositional uniformity and fine crystallinity in the entire length. In addition to the fundamental phonon modes, a weak overtone scattering (B1g) at 801cm-1 was found in Raman scattering study which is usually observed in nano-sized materials. A new process named heating-sol-gel template process for fabrication oxide nanorods with large quantity, good compositional uniformity and fine crystallinity based on a template method was proposed and the above characterization results support the new process is a desirable process.

Original languageEnglish
Pages (from-to)246-252
Number of pages7
JournalJournal of Crystal Growth
Volume264
Issue number1-3
DOIs
Publication statusPublished - Mar 15 2004

Fingerprint

Nanorods
anatase
Titanium dioxide
nanorods
Sol-gels
templates
gels
Heating
Fabrication
fabrication
heating
crystallinity
Nanocrystallites
Industrial heating
Electron diffraction
Oxides
Raman scattering
micrometers
x rays
electron diffraction

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Fabrication, characterization and Raman study of anatase-TiO2 nanorods by a heating-sol-gel template process. / Miao, Lei; Tanemura, Sakae; Toh, Shoichi; Kaneko, Kenji; Tanemura, Masaki.

In: Journal of Crystal Growth, Vol. 264, No. 1-3, 15.03.2004, p. 246-252.

Research output: Contribution to journalArticle

Miao, Lei ; Tanemura, Sakae ; Toh, Shoichi ; Kaneko, Kenji ; Tanemura, Masaki. / Fabrication, characterization and Raman study of anatase-TiO2 nanorods by a heating-sol-gel template process. In: Journal of Crystal Growth. 2004 ; Vol. 264, No. 1-3. pp. 246-252.
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