Fine tuning of the sizes and phases of ZrO2 nanocrystals
Nanocrystals, polymorphism, phase stability
Monodisperse and pure phase zirconia (tetragonal: T-ZrO2; monoclinic: M-ZrO2) nanocrystals with fi nely tuned sizes as well as ultrathin T-ZrO2 nanowires have been selectively synthesized by a facile solvothermal method. For the fi rst time, a diagram of the size to effective strain was mapped for both T-ZrO2 and M-ZrO2, which gives a good explanation for the size- and cation doping-dependent stability of the two phases on the sub-10 nm scale. This work may expand our understanding of the phase properties of not only zirconia, but also various other polymorphic nanocrystals.
Tsinghua University Press
Xiangxing Xu,Xun Wang, Fine tuning of the sizes and phases of ZrO2 nanocrystals. NanoRes.2009, 2: 891-902