Surfactant-assisted elimination of a high energy facet as a means of controlling the shapes of TiO2 nanocrystals.
The surfactant-mediated shape evolution of titanium dioxide anatase nanocrystals in nonaqueous media was studied. The shape evolves from bullet and diamond structures to rods and branched rods. The modulation of surface energies of the different crystallographic faces through the use of a surface selective surfactant is the key parameter for the shape control.
Jun
Young-Wook
YW
Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, , USA.
Casula
Maria F
MF
Sim
Jae-Hwan
JH
Kim
Sang Youl
SY
Cheon
Jinwoo
J
Alivisatos
A Paul
AP