In situ analysis on water transport in a direct methanol fuel cell durability test
文献类型：期刊论文
| 作者 | Tian, Yang1,2; Sun, Gongquan1; Mao, Qing1,2; Wang, Suli1; Liu, He1,2; Xin, Qin1,3 |
| 刊名 | journal of power sources
 |
| 出版日期 | 2008-12-01 |
| 卷号 | 185期号:2页码:1015-1021 |
| 关键词 | Direct methanol fuel cell Durability Performance recovery Water analysis Cathode gas diffusion layer |
| 产权排序 | 1;1 |
| 通讯作者 | 孙公权 |
| 英文摘要 | in present work, a 600 h durability test and in situ measurements of water transport were carried out on a single direct methanol fuel cell (dmfc) at atmospheric pressure and 80 degrees c. effect of water transport on the single cell performance was investigated in detail, which indicated that the accumulated water in the hydrophobic micropores of the cathode gas diffusion layer (gdl) aggravated the cathode flooding, and consequently led to a temporary and reversible degradation of the cell performance. further investigation revealed that cathode flooding could be alleviated by blowing the cathode with dry air for 150 h at open circuit condition and the partially recovered cell performance within the durability could be obtained in consequence. water analysis combined with the scanning electron microscopy (sem), contact angle measurement and energy dispersive x-ray (edx) was used to explore the characteristics of cathode gdl before and after the durability test. results showed that the variation of the microstructure and hydrophobic properties for both sides of the cathode gdl is probably one of the inherent reasons for the irreversible degradation of the cell performance besides the electro-catalysts deterioration. (c) 2008 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 ; performance degradation ; electroosmotic drag ; dmfc ; membranes ; crossover |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000261748900065 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/101401]  |
| 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.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Yang,Sun, Gongquan,Mao, Qing,et al. In situ analysis on water transport in a direct methanol fuel cell durability test[J]. journal of power sources,2008,185(2):1015-1021. |
| APA | Tian, Yang,Sun, Gongquan,Mao, Qing,Wang, Suli,Liu, He,&Xin, Qin.(2008).In situ analysis on water transport in a direct methanol fuel cell durability test.journal of power sources,185(2),1015-1021. |
| MLA | Tian, Yang,et al."In situ analysis on water transport in a direct methanol fuel cell durability test".journal of power sources 185.2(2008):1015-1021. |
入库方式： OAI收割
来源：大连化学物理研究所
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