淡江大學機構典藏:Item 987654321/60362
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 59160/92571 (64%)
造访人次 : 742496      在线人数 : 41
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜寻范围 查询小技巧:
  • 您可在西文检索词汇前后加上"双引号",以获取较精准的检索结果
  • 若欲以作者姓名搜寻,建议至进阶搜寻限定作者字段,可获得较完整数据
  • 进阶搜寻


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/60362


    题名: Effects of heating atmosphere on formation of crystalline citrate-derived LaAlO3 nanoparticles
    作者: Yu, Hsuan-Fu;Guo, Yu-Man
    贡献者: 淡江大學化學工程與材料工程學系
    关键词: Lanthanum aluminate;Citrate precursor method;Thermal analysis;Calcination atmosphere;Ceramic synthesis
    日期: 2011-02
    上传时间: 2011-10-13 22:31:11 (UTC+8)
    出版者: Amsterdam: Elsevier BV
    摘要: Crystalline LaAlO3 nanoparticles were synthesized at relative low temperatures, using a citrate-precursor technique. La(NO3)3, Al(NO3)3, and C3H4(OH)(COOH)3, in a molar ratio of 1:1:1, were dissolved in deionized water. NH4OH was used to adjust the aqueous solution to pH 7. After drying, the citrate precursors were charred at 350 °C, followed by calcination at different temperatures, in air or oxygen atmosphere. The thermochemical properties of the resultant particles were analyzed using thermogravimetric and differential thermal analysis, X-ray diffractometry, infrared spectroscopy, scanning electron microscopy, and transmission electron microscopy. Effects of calcination temperature and heating atmosphere on the formation of crystalline LaAlO3 nanoparticles were investigated. In O2 atmosphere, clacining the citrate-derived charred solid precursor at 700 °C for 3 h can decompose all intermediates to produce pure LaAlO3 nanoparticles (particle sizes ≤ 100 nm) with an average crystallite size of about 24 nm and possessing high sinterability.
    關聯: Journal of Alloys and Compounds 509(5), pp.1984-1988
    DOI: 10.1016/j.jallcom.2010.10.109
    显示于类别:[化學工程與材料工程學系暨研究所] 期刊論文

    文件中的档案:

    档案 描述 大小格式浏览次数
    0925-8388_509(5)p1984-1988.pdf999KbAdobe PDF166检视/开启
    0925-8388_509(5)p1984-1988.pdf999KbAdobe PDF0检视/开启

    在機構典藏中所有的数据项都受到原著作权保护.

    TAIR相关文章

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回馈