文化大學機構典藏 CCUR:Item 987654321/29200
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 47250/51116 (92%)
造访人次 : 14629598      在线人数 : 1606
RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜寻范围 Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://irlib.pccu.edu.tw/handle/987654321/29200


    题名: Synthesis and Characterization of Carbon Nanofibers by Catalytic Chemical Vapor Deposition Using Non-Ferromagnetic Metal Complexes
    作者: Su, Chi-Jung
    Yuan, Wei-Li
    Lai, Tzu-Wei
    Lei, Chien-Ming
    贡献者: 化學工程與材料工程學系
    关键词: Carbon Nanofibers
    CNFs
    Catalytic Chemical Vapor Deposition
    Non-Ferromagnetic Transition Metal
    日期: 2014-06
    上传时间: 2015-01-26 10:50:59 (UTC+8)
    摘要: Carbon nanofibers (CNFs) have wide applications in energy storage devices, electrically conducting composites, selective adsorbents, and catalyst supports. Catalytic chemical vapor deposition was carried out in this work to synthesize CNFs at mild temperatures of 700 and 800 degrees C. Non-ferromagnetic metal complexes of La, Nb, and Ti, spread on porous NaX-type zeolite support, were tested as new catalyst. CNFs ranging from 30 to 200 nm in diameter were obtained. Images of transmission electron microscopy showed encapsulated transition-metal nanoparticles by CNFs. X-ray diffraction patterns revealed the crystalline structures of La (FCC), Nb (BCC), and Ti (HCP) formed over zeolite. Magnetic hysteresis loops showed superconductivity from the CNF-encapsulated Nb at 2 K. Raman spectra showed that all the samples possessed graphitic and amorphous carbon structures. Based on the SEM images and Raman spectra, the three metals all catalyzed the synthesis of CNFs.
    關聯: JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 卷: 14 期: 6 頁碼: 4201-4206
    显示于类别:[化學工程與材料工程學系暨碩士班] 期刊論文

    文件中的档案:

    档案 描述 大小格式浏览次数
    index.html0KbHTML365检视/开启


    在CCUR中所有的数据项都受到原著作权保护.


    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©  2006-2025  - 回馈