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| 孔径分布对电化学CO2浓缩器空气电极性能的影响 | |
| 引用本文： | 姜大雨%宋爽%沈晋%周景玲%周德瑞.孔径分布对电化学CO2浓缩器空气电极性能的影响[J].宇航材料工艺,2006,36(1):60-63. |
| 作者姓名： | 姜大雨%宋爽%沈晋%周景玲%周德瑞 |
| 作者单位： | 1. 哈尔滨工业大学环境科学与工程系,哈尔滨,150001 2. 浙江工业大学环境工程系,杭州,310032 3. 北京航星机器制造公司,北京,100013 |
| 基金项目： | 中国科学院资助项目;浙江省自然科学基金;哈尔滨工业大学校科研和教改项目 |
| 摘 要： | 空气电极是电化学二氧化碳浓缩器（EDc）的核心组件，其极化性能的改进有利于CO2的转移和EDC电池稳定性的提高。通过改变门FE含量和乙炔黑含量改进了电极结构，一个组装有Pt／C空气电极和Hg／HgO参比电极的燃料电池被用于研究Cs2CO3电解液中的O2／CO2反应。孔径分布与阴极极化性能之间关系的分析结果表明：伴随着300～500nm孔径的比孔体积增加，空气电极的极化性能提高。此外，实验结果还表明：空气电极中町FE含量以15％为宜，乙炔黑的最佳含量为15％～20％。 |
| 关 键 词： | 空气电极 孔径分布 二氧化碳 浓缩器 |
| 收稿时间： | 2005-07-21 |
| 修稿时间： | 2005-07-21 |
Effect of Pore Size Distribution on Air Electrode Performance of Electrochemical Carbon Dioxide Concentrator |
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| Jiang Dayu,Song Shuang,Shen Jin,Zhou Jingling,Zhou Derui.Effect of Pore Size Distribution on Air Electrode Performance of Electrochemical Carbon Dioxide Concentrator[J].Aerospace Materials & Technology,2006,36(1):60-63. | |
| Authors: | Jiang Dayu Song Shuang Shen Jin Zhou Jingling Zhou Derui |
| Institution: | 1 .Department of Environmental Science and Engineering, Harbin Institute of Technology, Harbin 150001 ;2. Department of Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032;3 Beijing Hangxing Machine Manufacture Co. Ltd. , Beijing 100013 |
| Abstract: | Air electrodes are the key components of electrochemical carbon dioxide concentrator(EDC).Therefore,the improvement of the polarization performance is beneficial to the increasing of CO_(2) transfer and EDC cell stability.Electrode structure of air electrode is improved by means of changing the content of PTFE and acetylene black,and a fuel cell with porous Pt/C air electrode and Hg/HgO reference electrode is used to study O_(2)/CO_(2) reaction in Cs_(2)CO_(3) electrolyte.The analysis of the relationship between pore size distribution and cathodic polarization performance indicates that the polarization performance of air electrode increases with the increasing of the pore volume of 300 to 500 nm apertures.Besides,the experimental results reveal that the optimal content in air electrode is 15% for PTFE and 15% to 20% for acetylene black. |
| Keywords: | Air electrode Pore size distribution Carbon dioxide Concentrator |
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