He, Y. ; Liu, J. F. ; Chen, W. ; Wang, H. ; Zeng, Y. W. ; Zhang, G. Q. ; Wang, L. N. ; Liu, J. ; Hu, T. D. ; Hahn, Horst ; Gleiter, H. ; Jiang, J. Z. (2005)
High-pressure behavior of SnO2 nanocrystals.
In: Physical Review B, 72 (21)
doi: 10.1103/PhysRevB.72.212102
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
High-pressure behaviors of bulk and nanocrystalline SnO2 samples have been studied by in situ highpressure synchrotron radiation x-ray diffraction measurements up to about 40 GPa at ambient temperature. It is found that the smaller the nanocrystal SnO2, the higher the onset transition pressure for the rutile-to-cubic phase transformation in SnO2. The enhancement of the transition pressure is mainly due to the surface energy differences between the rutile and cubic phases and/or the enhancement of energy band gap when the SnO2 crystallite size gets smaller.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2005 |
| Autor(en): | He, Y. ; Liu, J. F. ; Chen, W. ; Wang, H. ; Zeng, Y. W. ; Zhang, G. Q. ; Wang, L. N. ; Liu, J. ; Hu, T. D. ; Hahn, Horst ; Gleiter, H. ; Jiang, J. Z. |
| Art des Eintrags: | Bibliographie |
| Titel: | High-pressure behavior of SnO2 nanocrystals |
| Sprache: | Englisch |
| Publikationsjahr: | 12 Dezember 2005 |
| Verlag: | American Physical Society |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Review B |
| Jahrgang/Volume einer Zeitschrift: | 72 |
| (Heft-)Nummer: | 21 |
| DOI: | 10.1103/PhysRevB.72.212102 |
| Kurzbeschreibung (Abstract): | High-pressure behaviors of bulk and nanocrystalline SnO2 samples have been studied by in situ highpressure synchrotron radiation x-ray diffraction measurements up to about 40 GPa at ambient temperature. It is found that the smaller the nanocrystal SnO2, the higher the onset transition pressure for the rutile-to-cubic phase transformation in SnO2. The enhancement of the transition pressure is mainly due to the surface energy differences between the rutile and cubic phases and/or the enhancement of energy band gap when the SnO2 crystallite size gets smaller. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Gemeinschaftslabor Nanomaterialien |
| Hinterlegungsdatum: | 11 Feb 2013 08:47 |
| Letzte Änderung: | 30 Jan 2019 10:40 |
| PPN: | |
| Sponsoren: | The authors would like to thank BSRF in Beijing, NSRL in Hefei, HASYLAB in Hamburg SPring8, and KEK in Japan for use of the synchrotron radiation facilities., Financial support from the National Natural Science Foundation of China �Grant Nos. 50341032 and 50425102�, the Ministry of Science and Technology of China �Grant Nos. 2004/249/ 37-14 and 2004/250/31-01A�, the Ministry of Education of China,, and Zhejiang University is gratefully acknowledged. |
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