热门
Anatase TiO(2) single crystals with a large percentage of reactive facets
文献类型：期刊论文
| 作者 | H. G. Yang ; C. H. Sun ; S. Z. Qiao ; J. Zou ; G. Liu ; S. C. Smith ; H. M. Cheng ; G. Q. Lu |
| 刊名 | Nature
 |
| 出版日期 | 2008 |
| 卷号 | 453期号:7195页码:638-U4 |
| 关键词 | total-energy calculations wave basis-set hydrothermal conditions titanium-dioxide surface oxide nanostructures nanoparticles nanocrystals efficiency |
| ISSN号 | 0028-0836 |
| 中文摘要 | Owing to their scientific and technological importance, inorganic single crystals with highly reactive surfaces have long been studied(1-13). Unfortunately, surfaces with high reactivity usually diminish rapidly during the crystal growth process as a result of the minimization of surface energy. A typical example is titanium dioxide ( TiO(2)), which has promising energy and environmental applications(14-17). Most available anatase TiO(2) crystals are dominated by the thermodynamically stable {101} facets ( more than 94 per cent, according to the Wulff construction(10)), rather than the much more reactive {001} facets(8-13,18-20). Here we demonstrate that for fluorine- terminated surfaces this relative stability is reversed: {001} is energetically preferable to {101}. We explored this effect systematically for a range of non- metallic adsorbate atoms by first- principle quantum chemical calculations. On the basis of theoretical predictions, we have synthesized uniform anatase TiO(2) single crystals with a high percentage ( 47 per cent) of {001} facets using hydrofluoric acid as a morphology controlling agent. Moreover, the fluorated surface of anatase single crystals can easily be cleaned using heat treatment to render a fluorine- |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/33270]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | H. G. Yang,C. H. Sun,S. Z. Qiao,et al. Anatase TiO(2) single crystals with a large percentage of reactive facets[J]. Nature,2008,453(7195):638-U4. |
| APA | H. G. Yang.,C. H. Sun.,S. Z. Qiao.,J. Zou.,G. Liu.,...&G. Q. Lu.(2008).Anatase TiO(2) single crystals with a large percentage of reactive facets.Nature,453(7195),638-U4. |
| MLA | H. G. Yang,et al."Anatase TiO(2) single crystals with a large percentage of reactive facets".Nature 453.7195(2008):638-U4. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。