淡江大學機構典藏:Item 987654321/104614
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 62805/95882 (66%)
造访人次 : 3995187      在线人数 : 656
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: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/104614


    题名: Visualizing chemical states and defects induced magnetism of graphene oxide by spatially-resolved-X-ray microscopy and spectroscopy
    作者: Wang, Y. F.;Singh, Shashi B.;Limaye, Mukta V.;Shao, Y. C.;Hsieh, S.H.;Chen, L.Y.;薛宏中;Hsueh, H. C.;Wang, H. T.;Chiou, J. W.;Yeh, Y. C.;Chen, C.W.;Chen, C. H.;Ray, Sekhar C.;Wang, J.;Pong, W. F.;Y. Takagi;T. Ohigashi;T. Yokoyama;N. Kosugi
    日期: 2015-10-20
    上传时间: 2016-01-06 11:04:50 (UTC+8)
    摘要: This investigation studies the various magnetic behaviors of graphene oxide (GO) and reduced
    graphene oxides (rGOs) and elucidates the relationship between the chemical states that involve
    defects therein and their magnetic behaviors in GO sheets. Magnetic hysteresis loop reveals that the
    GO is ferromagnetic whereas photo-thermal moderately reduced graphene oxide (M-rGO) and heavily
    reduced graphene oxide (H-rGO) gradually become paramagnetic behavior at room temperature.
    Scanning transmission X-ray microscopy and corresponding X-ray absorption near-edge structure
    spectroscopy were utilized to investigate thoroughly the variation of the C 2p(π*) states that are
    bound with oxygen-containing and hydroxyl groups, as well as the C 2p(σ*)-derived states in flat
    and wrinkle regions to clarify the relationship between the spatially-resolved chemical states and
    the magnetism of GO, M-rGO and H-rGO. The results of X-ray magnetic circular dichroism further
    support the finding that C 2p(σ*)-derived states are the main origin of the magnetism of GO. Based
    on experimental results and first-principles calculations, the variation in magnetic behavior from GO
    to M-rGO and to H-rGO is interpreted, and the origin of ferromagnetism is identified as the C 2p(σ*)-
    derived states that involve defects/vacancies rather than the C 2p(π*) states that are bound with
    oxygen-containing and hydroxyl groups on GO sheets.
    關聯: Scientific Reports 5, pp.15439
    DOI: 10.1038/srep15439
    显示于类别:[物理學系暨研究所] 期刊論文

    文件中的档案:

    档案 描述 大小格式浏览次数
    index.html0KbHTML501检视/开启
    Visualizing chemical states and defects induced magnetism of graphene oxide by spatially-resolved-X-ray microscopy and spectroscopy.pdf1950KbAdobe PDF246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