Xin Yu, Ling-shun Xu, Wen-hua Zhang, Zhi-quan Jiang, Jun-fa Zhu, Wei-xin Huang. Synchrotron-Radiation Photoemission Study of Growth and Stability of Au Clusters on Rutile TiO2(110)-1×1[J]. Chinese Journal of Chemical Physics , 2009, 22(4): 339-345. doi: 10.1088/1674-0068/22/04/339-345
Citation: Xin Yu, Ling-shun Xu, Wen-hua Zhang, Zhi-quan Jiang, Jun-fa Zhu, Wei-xin Huang. Synchrotron-Radiation Photoemission Study of Growth and Stability of Au Clusters on Rutile TiO2(110)-1×1[J]. Chinese Journal of Chemical Physics , 2009, 22(4): 339-345. doi: 10.1088/1674-0068/22/04/339-345

Synchrotron-Radiation Photoemission Study of Growth and Stability of Au Clusters on Rutile TiO2(110)-1×1

doi: 10.1088/1674-0068/22/04/339-345
Funds:  This work was supported by the National Natural Science Foundation of China (No.20773113 andNo.20803072), the Hundred Talent Program of Chinese Academy of Sciences, the MOE Program forChangjiang Scholars and Innovative Research Team(No.IRT0756), and the MPG-CAS Partner-group Program.
  • Received Date: 2009-04-30
  • The growth and thermal stability of Au clusters on a partially-reduced rutile TiO2(110)-1×1 surface were investigated by high-resolution photoelectron spectroscopy using synchrotron- radiation-light. The valence-band photoelectron spectroscopy results demonstrate that the Ti3+3d feature attenuates quickly with the initial deposition of Au clusters, implying that Au clusters nucleate at the oxygen vacancy sites. The Au4f core-level photoelectron spectroscopy results directly prove the existence of charge transfer from oxygen vacancies to Au clusters. The thermal stability of Au clusters on the partially-reduced and stoichiometric TiO2(110) surfaces was also comparatively investigated by the annealing experiments. With the same film thickness, Au clusters are more thermally stable on the partially-reduced TiO2(110) surface than on the stoichiometric TiO2(110) surface. Meanwhile, large Au nanoparticles are more thermally stable than fine Au nanoparticles.
  • 加载中
  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Article Metrics

Article views(1780) PDF downloads(1370) Cited by()

Proportional views
Related

Synchrotron-Radiation Photoemission Study of Growth and Stability of Au Clusters on Rutile TiO2(110)-1×1

doi: 10.1088/1674-0068/22/04/339-345
Funds:  This work was supported by the National Natural Science Foundation of China (No.20773113 andNo.20803072), the Hundred Talent Program of Chinese Academy of Sciences, the MOE Program forChangjiang Scholars and Innovative Research Team(No.IRT0756), and the MPG-CAS Partner-group Program.

Abstract: The growth and thermal stability of Au clusters on a partially-reduced rutile TiO2(110)-1×1 surface were investigated by high-resolution photoelectron spectroscopy using synchrotron- radiation-light. The valence-band photoelectron spectroscopy results demonstrate that the Ti3+3d feature attenuates quickly with the initial deposition of Au clusters, implying that Au clusters nucleate at the oxygen vacancy sites. The Au4f core-level photoelectron spectroscopy results directly prove the existence of charge transfer from oxygen vacancies to Au clusters. The thermal stability of Au clusters on the partially-reduced and stoichiometric TiO2(110) surfaces was also comparatively investigated by the annealing experiments. With the same film thickness, Au clusters are more thermally stable on the partially-reduced TiO2(110) surface than on the stoichiometric TiO2(110) surface. Meanwhile, large Au nanoparticles are more thermally stable than fine Au nanoparticles.

Xin Yu, Ling-shun Xu, Wen-hua Zhang, Zhi-quan Jiang, Jun-fa Zhu, Wei-xin Huang. Synchrotron-Radiation Photoemission Study of Growth and Stability of Au Clusters on Rutile TiO2(110)-1×1[J]. Chinese Journal of Chemical Physics , 2009, 22(4): 339-345. doi: 10.1088/1674-0068/22/04/339-345
Citation: Xin Yu, Ling-shun Xu, Wen-hua Zhang, Zhi-quan Jiang, Jun-fa Zhu, Wei-xin Huang. Synchrotron-Radiation Photoemission Study of Growth and Stability of Au Clusters on Rutile TiO2(110)-1×1[J]. Chinese Journal of Chemical Physics , 2009, 22(4): 339-345. doi: 10.1088/1674-0068/22/04/339-345

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return