Shaping nanometer-scale architecture through surface chemistry

Zoran V. Saponjic*, Nada M. Dimitrijevic, David M. Tiede, Andrew J. Goshe, Xiaobing Zuo, Lin X. Chen, Amanda S. Barnard, Peter Zapol, Larry Curtiss, Tijana Rajh

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

125 Scopus citations

Abstract

The unique surface structure of Titanium surface sites, whihc controls the nanoparticle shape and the overall crystalline structure of TiO 2(titania) nanotubes, was studied. Scrolled titania nanotubes were found to contain a large fraction of uncoordinated surface sites. The scrolled titania nanotubes, axially anisotropic nano-objects, are shaped because of the formation of undercoordinated surface sites that fold layers of anatase titania into scrolled nanotubes with large curvatures. Unscrolling was found to change the crystalline structure from quasinatase in the nanotubes to quasirutile in the sheet like structures. The use of the structure of the surface sites in controlling the crystalline structure of the nanostructure were evaluated.

Original languageEnglish (US)
Pages (from-to)965-971
Number of pages7
JournalAdvanced Materials
Volume17
Issue number8
DOIs
StatePublished - Apr 18 2005

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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