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题名: (301) and (101) RuO2 twins on nanostructural rutile TiO2 template
作者: Chen, Y. M.
C. A. Chen
C. N. Yeh
J. K. Chi
Y. S. Huang
D. S. Tsai
K. K. Tiong
贡献者: 國立臺灣海洋大學:電機工程學系
关键词: Nanostrucutral metal oxides
Field-emission scanning electron microscopy
X-ray diffraction
Raman spectroscopy
X-ray photoelectron spectroscopy
Transmission electron microscopy
Selected-area electron diffractometry
日期: 2009-10-15
上传时间: 2018-12-07T08:28:24Z
出版者: Materials Chemistry and Physics`
摘要: Abstract: Nanostructural (3 0 1) and (1 0 1) twins of RuO2 were grown on top of rutile phase TiO2 nanorods (NRs) sitting on LiNbO3(1 0 0) substrate. The surface morphology, structural and spectroscopic properties of the as-deposited nanocrystals (NCs) were characterized by field-emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), micro-Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and selected-area electron diffractometry (SAED). The FESEM images and XRD patterns indicated growth of V-shaped RuO2 (3 0 1) and (1 0 1) twins with angles of 51° and 110° between two arms, respectively. The Raman spectrum showed the nanosize induced redshift and peak broadening of the RuO2 and rutile phase of TiO2 signatures with respect to that of the bulk counterparts. XPS spectra indicated the existence of higher oxidation states of ruthenium in RuO2 NCs. TEM and SAED characterizations of the V-shaped RuO2 NCs showed that the nanorods were crystalline RuO2 with twin planes of (3 0 1)/(1 0 1) and twin directions of at the V-junction. The probable formation mechanisms of the twins are discussed.
關聯: 117(2-3) pp.544-549
显示于类别:[電機工程學系] 期刊論文


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