https://scholars.lib.ntu.edu.tw/handle/123456789/410473
標題: | Growth of zirconia and yttria-stabilized zirconia nanorod arrays assisted by phase transition | 作者: | Chen C.-C. Cheng W.-Y. Lu S.-Y. Lin Y.-F. Hsu Y.-J. Chang K.-S. Kang C.-H. Tung K.-L. |
公開日期: | 2010 | 卷: | 12 | 期: | 11 | 起(迄)頁: | 3664-3669 | 來源出版物: | CrystEngComm | 摘要: | Well-aligned, densely distributed ZrO2 nanorod arrays were fabricated using a non-catalytic, template-free metal-organic chemical vapour deposition process at a reaction temperature of 1000 ¢XC. The reaction temperature was found to play a key role in product morphology, with particle thin films obtained at 550 ¢XC and nanorod arrays produced at 1000 ¢XC. Increasing the reaction temperature led to the emergence of the medium-temperature tetragonal phase from the dominant low-temperature monoclinic phase, which is advantageous for anisotropic growth necessary for the nanorod formation. With the same deposition process, yttria-stabilized zirconia nanorod arrays of polycrystalline cubic phase were fabricated by co-feeding the dopant precursor, YCl3, with the zirconia precursor, Zr(C5H 7O2)4. The present work demonstrated the first example of monoclinic to tetragonal phase-transition assisted one-dimensional (1D) growth, and the concept can be extended to the formation of 1D nanostructures of materials possessing the monoclinic-tetragonal polymorphism. ? 2010 The Royal Society of Chemistry. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/410473 | ISSN: | 14668033 | DOI: | 10.1039/c000728e |
顯示於: | 化學工程學系 |
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