...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of power sources >Characterisation Of Porous Carbon Electrode Materials Used In Proton Exchange Membrane Fuel Cells Via Gas Adsorption
【24h】

Characterisation Of Porous Carbon Electrode Materials Used In Proton Exchange Membrane Fuel Cells Via Gas Adsorption

机译：质子交换膜燃料电池中多孔碳电极材料的气体吸附特性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Porous carbon materials are typically used in both the substrate (typically carbon paper) and the elec-trocatalyst supports (often platinised carbon) within proton exchange membrane fuel cells. Gravimetric nitrogen adsorption has been studied at a carbon paper substrate, two different Pt-loaded carbon paper electrodes and three particulate carbon blacks. N_2 BET surface areas and surface fractal dimensions were determined using the fractal BET and Frenkel-Halsey-Hill models for all but one of the materials studied. The fractal dimensions of the carbon blacks obtained from gas adsorption were compared with those obtained independently by small angle X-ray scattering and showed good agreement. Density functional theory was used to characterise one of the carbon blacks, as the standard BET model was not applicable.
机译：质子交换膜燃料电池中的基材（通常为碳纸）和电催化剂载体（通常为铂碳）通常都使用多孔碳材料。已经研究了在碳纸基材，两种不同的Pt负载碳纸电极和三种颗粒炭黑中的重量氮吸附。使用分形BET和Frenkel-Halsey-Hill模型（除一种研究材料外）确定N_2 BET表面积和表面分形维数。将通过气体吸附获得的炭黑的分形维数与通过小角度X射线散射独立获得的分形维数进行了比较，并显示出良好的一致性。由于标准BET模型不适用，因此使用密度泛函理论来表征一种炭黑。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号