High pressure synthesis of amorphous TiO2 nanotubes
文献类型：期刊论文
| 作者 | Li, QJ; Liu, R; Wang, TY; Xu, K; Dong, Q; Liu, B; Liu, J; Liu, BB; Liu J(刘景)
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| 刊名 | AIP ADVANCES
 |
| 出版日期 | 2015 |
| 卷号 | 5期号:9页码:97128 |
| 英文摘要 | Amorphous TiO2 nanotubes with diameters of 8-10 nm and length of several nanometers were synthesized by high pressure treatment of anatase TiO2 nanotubes. The structural phase transitions of anatase TiO2 nanotubes were investigated by using in-situ high-pressure synchrotron X-ray diffraction (XRD) method. The starting anatase structure is stable up to similar to 20GPa, and transforms into a high-density amorphous (HDA) form at higher pressure. Pressure-modified high- to low-density transition was observed in the amorphous form upon decompression. The pressure-induced amorphization and polyamorphism are in good agreement with the previous results in ultrafine TiO2 nanoparticles and nanoribbons. The relationship between the LDA form and alpha-PbO2 phase was revealed by high-resolution transmission electron microscopy (HRTEM) study. In addition, the bulk modulus (B-0 = 158 GPa) of the anatase TiO2 nanotubes is smaller than those of the corresponding bulks and nanoparticles (180-240 GPa). We suggest that the unique open-ended nanotube morphology and nanosize play important roles in the high pressure phase transition of TiO2 nanotubes. (C) 2015 Author(s). |
| 学科主题 | Science & Technology - Other Topics; Materials Science; Physics |
| 类目[WOS] | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| 收录类别 | SCI ; EI |
| WOS记录号 | WOS:000362562100035 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/228775]  |
| 专题 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Li, QJ,Liu, R,Wang, TY,et al. High pressure synthesis of amorphous TiO2 nanotubes[J]. AIP ADVANCES,2015,5(9):97128. |
| APA | Li, QJ.,Liu, R.,Wang, TY.,Xu, K.,Dong, Q.,...&刘景.(2015).High pressure synthesis of amorphous TiO2 nanotubes.AIP ADVANCES,5(9),97128. |
| MLA | Li, QJ,et al."High pressure synthesis of amorphous TiO2 nanotubes".AIP ADVANCES 5.9(2015):97128. |
入库方式： OAI收割
来源：高能物理研究所
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