Unveiling the Atomic Structures of the Minority Surfaces of TiO2 Nanocrystals
Yuan, WT; Meng, J; Zhu, BE; Gao, Y; Zhang, Z; Sun, CH; Wang, Y
2018
发表期刊CHEMISTRY OF MATERIALS
ISSN0897-4756
卷号30期号:1页码:288-295
文章类型期刊论文
摘要Determining the atomic structures of minority surfaces of TiO2 is of critical importance in terms of accurately interpreting their demonstrated properties. Unlike well-studied majority surfaces [such as anatase TiO2 (101)], the structures of the more attractive minority surfaces and edges are poorly known, which hampers the further understanding of their unique behaviors. Herein, through the aberration-corrected scanning transmission electron microscope, the atomic structures of the five minority surfaces [(100), (001), (102), (103), and (301)] and edges between six facets are experimentally determined. Several unique configurations are unveiled on the (301) and (102) surfaces. Intriguingly, the defective (103) and (102) surfaces are identified as distinct structures, completely different from the early predictions of stoichiometric surfaces, which are further confirmed by first-principles calculations. With the calculations based on density functional theory, the intrinsic electronic properties of the minority surfaces are also revealed. This work provides new information on minority surfaces and edges, which contributes to advancing our knowledge in surfaces and better understanding their versatile performances.
关键词Transmission Electron-microscope Oxygen Vacancy Concentration Titanium-dioxide Layer Deposition Oxide Surfaces Anatase 101 Science Water Facets Photocatalysis
DOI10.1021/acs.chemmater.7b04541
收录类别SCI
语种英语
WOS记录号WOS:000419999400030
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/29204
专题中科院上海应用物理研究所2011-2018年
作者单位1.Yuan, WT
2.Meng, J
3.Zhu, BE
4.Gao, Y
5.Zhang, Z
6.Sun, CH
7.Wang, Y
推荐引用方式
GB/T 7714
Yuan, WT,Meng, J,Zhu, BE,et al. Unveiling the Atomic Structures of the Minority Surfaces of TiO2 Nanocrystals[J]. CHEMISTRY OF MATERIALS,2018,30(1):288-295.
APA Yuan, WT.,Meng, J.,Zhu, BE.,Gao, Y.,Zhang, Z.,...&Wang, Y.(2018).Unveiling the Atomic Structures of the Minority Surfaces of TiO2 Nanocrystals.CHEMISTRY OF MATERIALS,30(1),288-295.
MLA Yuan, WT,et al."Unveiling the Atomic Structures of the Minority Surfaces of TiO2 Nanocrystals".CHEMISTRY OF MATERIALS 30.1(2018):288-295.
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