Heating-sol-gel template process for the growth of TiO 2 nanorods with rutile and anatase structure

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

Research output: Contribution to journalConference articlepeer-review

80 Citations (Scopus)

Abstract

Densely assembled nanorods consist of the nanoparticles of rutile and those of anatase have been fabricated successfully by a heating-sol-gel template process, respectively. The size of nanorods varies as a diameter of 100-300nm and a length of several micrometers, which are controllable by the pore size of the template. The similarities and/or differences of the fabricated process and microstructure for rutile and anatase nanorods were discussed. TEM image revealed that anatase nanorods are the aggregates of many indistinct polygonal nanoparticles up to ∼10nm in diameter, while rutile nanorods are the aggregates of irregular octagon and/or hexagon nanoparticles in 10-30nm diameter. XRD, ED and HRTEM lattice image confirmed the nanorods fabricated by the heating-sol-gel process are well assembled by many individual nanoparticles. The nanoparticles in rutile nanorods were larger than those in anatase nanorods possibly due to the different heat-treatment procedure.

Original languageEnglish
Pages (from-to)175-179
Number of pages5
JournalApplied Surface Science
Volume238
Issue number1-4 SPEC. ISS.
DOIs
Publication statusPublished - 2004 Nov 15
Externally publishedYes
EventAPHYS 2003 - Badajoz, Spain
Duration: 2003 Oct 132003 Oct 18

Keywords

  • Chemical composition
  • Heating-sol-gel template process
  • Nanorods synthesis
  • TEM analysis
  • Titanium dioxide

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

Fingerprint Dive into the research topics of 'Heating-sol-gel template process for the growth of TiO <sub>2</sub> nanorods with rutile and anatase structure'. Together they form a unique fingerprint.

Cite this