勤益科大機構典藏:Item 987654321/5843
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 2928/5721 (51%)
造访人次 : 387041      在线人数 : 502
RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTU 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://ir.lib.ncut.edu.tw/handle/987654321/5843


    题名: Electrophoretic Deposited Pt/C/SiO2 Anode for Self-Humidifying and Improved Catalytic Activity in PEMFC
    作者: An-Ya Lo, Chien-Yao Huang, Lung-Yu Sung, Rong-Fuh Louh
    贡献者: 圖書館
    关键词: electrophoresis deposition
    Self-Humidifying
    SiO2 nanosphere
    hydrophilic anodes
    日期: 2015-10-20
    上传时间: 2016-10-14 13:00:16 (UTC+8)
    摘要: In this study, the electrophoresis deposition (EPD) method was employed to prepare hydrophilic Pt/C/SiO2 anode for obtaining self-humidifying membrane electrolyte assemblies (MEAs). The SiO2 nanospheres prepared by sol gel method are with 65 nm diameter averagely. The self-humidifying MEAs consist of hydrophilic anodes, JM-GDE cathode, and polymer electrolyte (Nafion 212, DuPont), were prepared via hot pressing and then incorporated into single cell (9 cm2) for testing. Effects of SiO2 mass fraction and humidity on Pt mass activity and long-term durability are discussed. Besides the addition of SiO2 nanospheres, Pt mass activity on anode was enhanced from 1941 to 2856 mA/mgPt while operating under the operating cell voltage of 0.6 V and 100% relative humidity (RH) condition. Furthermore it also enhanced from 1529 to 2709 mA/mgPt under cell operation conditions of 0.6 V and 30 % RH. For the long-term durability under severe condition (<30% RH), the routine single cell manifests a significant voltage decline of about 15.5%. While single cell with our proposed hydrophilic anodes shows only 4.5% of voltage declining rate for exceeding 560 hours operating. Our proposed methodology in this study not only results in an outstanding Pt mass activity but also in an excellent slef-humification.
    關聯: Electrochimica Acta
    显示于类别:[化工與材料工程系(所)] 【化工與材料工程系】期刊論文

    文件中的档案:

    档案 描述 大小格式浏览次数
    Study on RuO2 CMK-3 CNTs composites for high power and high energy density supercapacitor.pdf1711KbAdobe PDF1375检视/开启


    检视Licence

    在NCUTIR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 ©   - 回馈