Structure analysis of titanate nanorods by automated electron diffraction tomography
書誌事項
- 公開日
- 2011-05-14
- 権利情報
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- http://journals.iucr.org/services/copyrightpolicy.html
- http://journals.iucr.org/services/copyrightpolicy.html#TDM
- DOI
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- 10.1107/s0108768111014534
- 公開者
- International Union of Crystallography (IUCr)
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説明
<jats:p>A hitherto unknown phase of sodium titanate, NaTi<jats:sub>3</jats:sub>O<jats:sub>6</jats:sub>(OH)·2H<jats:sub>2</jats:sub>O, was identified as the intermediate species in the synthesis of TiO<jats:sub>2</jats:sub> nanorods. This new phase, prepared as nanorods, was investigated by electron diffraction, X-ray powder diffraction, thermogravimetric analysis and high-resolution transmission electron microscopy. The structure was determined <jats:italic>ab initio</jats:italic> using electron diffraction data collected by the recently developed automated diffraction tomography technique. NaTi<jats:sub>3</jats:sub>O<jats:sub>6</jats:sub>(OH)·2H<jats:sub>2</jats:sub>O crystallizes in the monoclinic space group <jats:italic>C</jats:italic>2/<jats:italic>m</jats:italic>. Corrugated layers of corner- and edge-sharing distorted TiO<jats:sub>6</jats:sub> octahedra are intercalated with Na<jats:sup>+</jats:sup> and water of crystallization. The nanorods are typically affected by pervasive defects, such as mutual layer shifts, that produce diffraction streaks along c*. In addition, edge dislocations were observed in HRTEM images.</jats:p>
収録刊行物
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- Acta Crystallographica Section B Structural Science
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Acta Crystallographica Section B Structural Science 67 (3), 218-225, 2011-05-14
International Union of Crystallography (IUCr)
