Effects of freeze/thaw cycles and gas purging method on polymer electrolyte membrane fuel cells
文献类型：期刊论文
| 作者 | Zhang Shengsheng; Yu Hongmei; Zhu Hong; Hou Junbo; Yi Baolian; Ming Pingwen |
| 刊名 | chinese journal of chemical engineering
 |
| 出版日期 | 2006-12-01 |
| 卷号 | 14期号:6页码:802-805 |
| 关键词 | polymer electrolyte membrane fuel cell (PEMFC) freeze/thaw cycle electrode structure performance degradation gas purging |
| 英文摘要 | at subzero temperature, the startup capability and performance of polymer electrolyte membrane fuel cell (pemfc) deteriorates markedly. the object of this work is to study the degradation mechanism of key components of pemfc-membrane-electrode assembly (mea) and seek feasible measures to avoid degradation. the effect of freeze/thaw cycles on the structure of mea is investigated based on porosity and sem measurement. the performance of a single cell was also tested before and after repetitious freeze/thaw cycles. the experimental results indicated that the performance of a pemfc decreased along with the total operating time as well as the pore size distribution shifting and micro configuration changing. however, when the redundant water had been removed by gas purging, the performance of the pemfc stack was almost resumed when it experienced again the same subzero temperature test. these results show that it is necessary to remove the water in pemfcs to maintain stable performance under subzero temperature and gas purging is proved to be the effective operation. |
| WOS标题词 | science & technology ; technology |
| 类目[WOS] | engineering, chemical |
| 研究领域[WOS] | engineering |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000243266100015 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140174]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Beijing Jiaotong Univ, Sch Sci, Beijing 100044, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Ctr, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Shengsheng,Yu Hongmei,Zhu Hong,et al. Effects of freeze/thaw cycles and gas purging method on polymer electrolyte membrane fuel cells[J]. chinese journal of chemical engineering,2006,14(6):802-805. |
| APA | Zhang Shengsheng,Yu Hongmei,Zhu Hong,Hou Junbo,Yi Baolian,&Ming Pingwen.(2006).Effects of freeze/thaw cycles and gas purging method on polymer electrolyte membrane fuel cells.chinese journal of chemical engineering,14(6),802-805. |
| MLA | Zhang Shengsheng,et al."Effects of freeze/thaw cycles and gas purging method on polymer electrolyte membrane fuel cells".chinese journal of chemical engineering 14.6(2006):802-805. |
入库方式： OAI收割
来源：大连化学物理研究所
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