Analysis of membrane electrode assembly (MEA) by environmental scanning electron microscope (ESEM)
文献类型：期刊论文
| 作者 | Yu, HM; Schumacher, JO; Zobel, M; Hebling, C |
| 刊名 | journal of power sources
 |
| 出版日期 | 2005-08-18 |
| 卷号 | 145期号:2页码:216-222 |
| 关键词 | PEM fuel cell membrane electrode assembly environmental scanning electron microscope microstructure degradation |
| 英文摘要 | to date, the available equipment for characterising the microstructure of membrane electrode assembly (mea) is still not well developed. for example, applying the normal scanning electron microscope (sem) only provides information on the dry structure of meas. this paper presents a microstructure analysis method of meas in proton exchange membrane fuel cells (pemfc). the microstructure analysis in this paper utilises the environmental scanning electron microscope (esem), which shows its advantage on the sample microstructure analysis in wet mode. when water is present, the characteristics of the mea, especially the hydrophobic and/or hydrophilic properties, are distinguishable on the esem images. with proper temperature and pressure control, the water distribution within both the membrane and the catalyst layer can be viewed by esem. based on esem measurement and mercury porosity measurement, the distributions of hydrophobic and hydrophilic pores in mea have been analyzed. by means of esem and energy dispersive x-ray (edx), a degraded mea is characterized. the microstructure change of the degraded mea has been discussed. the results provide helpful information for the understanding of meas in pemfc. (c) 2005 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | electrochemistry ; energy & fuels |
| 研究领域[WOS] | electrochemistry ; energy & fuels |
| 关键词[WOS] | gas-diffusion layer ; fuel-cells ; cathode ; water |
| 收录类别 | ISTP ; SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000231893300015 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/139704]  |
| 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.Fraunhofer Inst Solar Energy Syst, D-79110 Freiburg, Germany 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, HM,Schumacher, JO,Zobel, M,et al. Analysis of membrane electrode assembly (MEA) by environmental scanning electron microscope (ESEM)[J]. journal of power sources,2005,145(2):216-222. |
| APA | Yu, HM,Schumacher, JO,Zobel, M,&Hebling, C.(2005).Analysis of membrane electrode assembly (MEA) by environmental scanning electron microscope (ESEM).journal of power sources,145(2),216-222. |
| MLA | Yu, HM,et al."Analysis of membrane electrode assembly (MEA) by environmental scanning electron microscope (ESEM)".journal of power sources 145.2(2005):216-222. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。