...
首页> 外文期刊>Journal of power sources >Development of tellurium-modified carbon catalysts for oxygen reduction reaction in PEM fuel cells
【24h】

Development of tellurium-modified carbon catalysts for oxygen reduction reaction in PEM fuel cells

机译:用于PEM燃料电池中氧还原反应的碲改性碳催化剂的开发

获取原文
获取原文并翻译 | 示例
           

摘要

Tellurium (Te)-modified carbon catalyst for oxygen reduction reaction was prepared through chemical reduction of telluric acid followed by the pyrolysis process at elevated temperatures. The catalyst was found to be active for oxygen reduction reaction. High-temperature pyrolysis plays a crucial role in the formation of the active sites of the catalysts. When the pyrolysis was conducted at 1000℃, the catalyst exhibited the onset potential for oxygen reduction as high as 0.78 V vs. NHE and generated less than 1% H_2O_2 during oxygen reduction. The performance of the membrane-electrode assembly prepared with the Te-modified carbon catalyst was also evaluated.
机译:通过将碲酸化学还原,然后在高温下进行热解过程,制备了用于氧还原反应的碲(Te)改性碳催化剂。发现该催化剂对氧还原反应具有活性。高温热解在催化剂活性部位的形成中起关键作用。当在1000℃进行热解时,该催化剂表现出的氧还原起始电位相对于NHE高达0.78 V,并且在氧还原过程中生成的H_2O_2小于1%。还评估了用Te-改性的碳催化剂制备的膜-电极组件的性能。

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