A HRTEM and XRD Study of the Potassium Hexatitanate Nanowires

材料科学技术（英文）, 2004, 20(6): 681-683.

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1.College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China

2.College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China

3.College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China

4.Beijing Laboratory of Electron Microscopy, Institute of Physics, Chinese Academy of Sciences, P.O.Box 2724,Beijing 100080, China

5.College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China

6.College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China

基金项目: This work was supported by the National Excellent Youth Foundation of China(50025103) 国家自然科学基金(50311140138) 国家自然科学基金(20271037 ,50171046) 国家自然科学基金(90306014)

A HRTEM and XRD Study of the Potassium Hexatitanate Nanowires

Keywords： Potassium hexatitanate

The structure of potassium hexatitanate (K2Ti6O13) nanowires has been investigated using both the Rietveld powder diffraction profile fitting technique and high resolution transmission electron microscopy (HRTEM) image simulations.From the Rietveld analysis it was shown that the nanowires had a monoclinic structure of the space group C2/M and the lattice parameters were a=1.5582 nm, b=0.382 nm, c=0.9112 nm. HRTEM conclusions agree with refinement results obtained from experimental XRD data. The good agreement between the experimental and simulated images confirms that the nanowires is indeed K2Ti6O13 nanowire. The growth axes of nanowires were mainly along the [010] direction.

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A HRTEM and XRD Study of the Potassium Hexatitanate Nanowires

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