Journal
NANO RESEARCH
Volume 2, Issue 11, Pages 891-902Publisher
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-009-9092-x
Keywords
Nanocrystals; polymorphism; phase stability
Categories
Funding
- National Natural Science Foundation of China [20725102, 50772056]
- Foundation for the Authors of National Excellent Doctoral Dissertation of China
- Ministry of Education of China
- Fok Ying Tung Education Foundation [111012]
- State Key Project of Fundamental Research for Nanoscience and Nanotechnology [2006CB932301]
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Monodisperse and pure phase zirconia (tetragonal: T-ZrO2; monoclinic: M-ZrO2) nanocrystals with finely tuned sizes as well as ultrathin T-ZrO2 nanowires have been selectively synthesized by a facile solvothermal method. For the first 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.
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