English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 80990/80990 (100%)
造訪人次 : 40681019      線上人數 : 1298
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋


    請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/50704


    題名: Enhanced Durability of Au Cluster Decorated Pt Nanoparticles for the Oxygen Reduction Reaction
    作者: Zhang,Y;Huang,QH;Zou,ZQ;Yang,JF;Vogel,W;Yang,H
    貢獻者: 化學學系
    關鍵詞: MEMBRANE-ELECTRODE ASSEMBLIES;METHANOL FUEL-CELLS;SUPPORTED PLATINUM;ALLOY ELECTROCATALYSTS;GOLD NANOPARTICLES;CATALYTIC-ACTIVITY;PEMFC;STABILITY;MECHANISM;OXIDATION
    日期: 2010
    上傳時間: 2012-03-27 18:08:17 (UTC+8)
    出版者: 國立中央大學
    摘要: A low temperature approach via alcohol reduction has been employed to prepare Au cluster decorated carbon-supported Pt nanoparticles for the oxygen reduction reaction (ORR) X-ray diffraction at wide angles (WAXS) shows that both metallic Pt and Au exhibit their respective face-centered cubic structures, indicative of no alloy formation between Pt and Au. Both WAXS and transmission electron microscopy characterizations demonstrate that no major change in mean particle size for bimetallic catalysts was observed even after heat treatment at 600 degrees C, providing evidence for an enhanced thermal stability of the bimetallic catalysts. An ORR activity comparison proves that the initial ORR activity on the PtAu/C catalysts is comparable with that on the Pt/C Moreover, the modification of carbon-supported Pt nanoparticles by Au clusters leads to a significant enhancement in the long-term durability of the catalyst Thus, such a Pt-Au bimetallic electrocatalyst may be the more promising cathode catalyst for proton exchange membrane fuel cells
    關聯: JOURNAL OF PHYSICAL CHEMISTRY C
    顯示於類別:[化學學系] 期刊論文

    文件中的檔案:

    檔案 描述 大小格式瀏覽次數
    index.html0KbHTML520檢視/開啟


    在NCUIR中所有的資料項目都受到原著作權保護.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 隱私權政策聲明