Atomic Imaging of Molybdenum Oxide Nanowires with Unique and Complex Periodicity by Advanced Electron Microscopy

Yi Hsin Ting, Chun Wei Huang, Akira Yasuhara, Sheng Yuan Chen, Jui Yuan Chen, Li Chang, Kuo Chang Lu, Wen Wei Wu

研究成果: Article

1 引文 斯高帕斯(Scopus)

摘要

Crystalline Mo5O14 exhibits distinctive structural features such as tunnel structure and pseudolamellar arrangement according to the ideal model. However, the spatial resolution of the conventional technique of transmission electron microscopy (TEM) is insufficient to distinguish the actual positions of atoms. In this work, we aimed to systematically analyze and identify the Mo5O14 nanowires fabricated by the chemical vapor deposition (CVD) process. Utilizing high-angle annular dark-field (HAADF), annular bright-field (ABF), and enhanced annular bright-field (E-ABF) within the scanning transmission electron microscope (STEM) mode reveals the structural features at the atomic scale. In addition, the ultrahigh resolution images have confirmed the crystallographic insights in [001] growth direction for the Mo5O14 nanowires with a tunnel structure throughout the nanowire. The cross-sectional images show the unique close-packed plane and atomic arrangement with a network of MoO6 octahedra and MoO7 pentagonal bipyramids. These results are consistent with the theoretical atomic arrangement, supporting the realization of Mo5O14-type catalysts used in the selective oxidation process and battery applications.

原文English
頁(從 - 到)1510-1516
頁數7
期刊Nano letters
20
發行號3
DOIs
出版狀態Published - 2020 三月 11

    指紋

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

引用此

Ting, Y. H., Huang, C. W., Yasuhara, A., Chen, S. Y., Chen, J. Y., Chang, L., Lu, K. C., & Wu, W. W. (2020). Atomic Imaging of Molybdenum Oxide Nanowires with Unique and Complex Periodicity by Advanced Electron Microscopy. Nano letters, 20(3), 1510-1516. https://doi.org/10.1021/acs.nanolett.9b03510