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| Size- and morphology-dependent structural transformations in anatase TiO2 nanowires under high pressures | |
| Dong, ZH; Song, Y | |
| 2015 | |
| Source Publication | CANADIAN JOURNAL OF CHEMISTRY
 |
| Volume | 93Issue:2Pages:165—172 |
| Subtype | 期刊文献 |
| Abstract | Titanium dioxide (TiO2) nanowires with two different dimensions (i.e., < 100 nm and similar to 200 nm in diameter) were synthesized and studied under high pressure up to 37 GPa by Raman spectroscopy and synchrotron X-ray diffraction. Direct anatase to baddeleyite phase transitions were observed in both samples upon compression, but with different onset pressures. The observed phase transitions are in contrast to bulk TiO2, where the anatase phase transforms to alpha-PbO2 phase and then the baddeleyite phase. Compressibility of the anatase and baddeleyite phases was found different than both nanocrystals and the corresponding bulk materials. Our comparative study demonstrated not only that the morphology of TiO2 nanowire substantially influences the high pressure behaviors, but dimensions play a determining role in terms of transformation pressures, phase stability regions, and compressibility. |
| Keyword | X-ray-diffraction Phase-transitions Titanium-dioxide Induced Amorphization Raman-spectrum Nanocrystals Nanofibers Titanate Rutile Gpa |
| Indexed By | SCI |
| Language | 英语 |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/24569 |
| Collection | 中科院上海应用物理研究所2011-2020年 |
| Recommended Citation GB/T 7714 | Dong, ZH,Song, Y. Size- and morphology-dependent structural transformations in anatase TiO2 nanowires under high pressures[J]. CANADIAN JOURNAL OF CHEMISTRY,2015,93(2):165—172. |
| APA | Dong, ZH,&Song, Y.(2015).Size- and morphology-dependent structural transformations in anatase TiO2 nanowires under high pressures.CANADIAN JOURNAL OF CHEMISTRY,93(2),165—172. |
| MLA | Dong, ZH,et al."Size- and morphology-dependent structural transformations in anatase TiO2 nanowires under high pressures".CANADIAN JOURNAL OF CHEMISTRY 93.2(2015):165—172. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Size- and morphology（1028KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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