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Spatially Confined Corner Defects Induce Chemical Functionality of TiO 2 Nanorods
Author(s) -
Rabatic B. M.,
Dimitrijevic N. M.,
Cook R. E.,
Saponjic Z. V.,
Rajh T.
Publication year - 2006
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200500988
Subject(s) - nanorod , materials science , high resolution transmission electron microscopy , reactivity (psychology) , titanium dioxide , nanotechnology , nanoparticle , titanium , metal , atom (system on chip) , anisotropy , selectivity , optics , transmission electron microscopy , chemistry , organic chemistry , catalysis , physics , computer science , composite material , metallurgy , medicine , alternative medicine , pathology , embedded system
The atomic structure of anisotropic titanium dioxide nanoparticles is characterized by HRTEM to identify coordination defects at the tip surfaces of the nanorods (see figure). At the tip regions of the nanoparticles, the titanium metal–metal atom spacings extend between the (001) planes and demonstrate site‐specific chemical reactivity towards surface modifiers. The observed reactivity of the nanorod tip is reminiscent of selectivity found in organic and biological self‐organizing systems.