Electrochemical devices with optimized gas tightness for the diffusivity measurement in fuel cells
文献类型：期刊论文
| 作者 | He, WD ; Lin, X ; Lv, WQ ; Dickerson, JH |
| 刊名 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| 出版日期 | 2014 |
| 卷号 | 39期号:5页码:2334 |
| 关键词 | Fuel cells Diffusivities Gas tightness Limiting current densities Electrode thicknesses Concentration polarizations |
| ISSN号 | 0360-3199 |
| 通讯作者 | He, WD (reprint author), Univ Elect Sci & Technol China, Sch Energy Sci & Engn, Chengdu 611731, Peoples R China. |
| 中文摘要 | The technique allowing for direct gas diffusivity measurement in fuel cells has been advanced rapidly in recent years. Such development has largely improved the accuracy in the evaluation of fuel cell limiting current density (LCD) and overall concentration polarization (CP). However, electrolyte discs were employed in all the previous gas diffusivity electrochemical devices, which inevitably induced gas leak in the gas diffusivity measurement. In this report, quantitative analysis is performed to evaluate the correlation between gas leak and the important fuel cell parameters including electrode diffusivity, LCD and CP. To avoid gas leak, electrochemical devices without any electrolyte discs is then proposed. Our quantitative study and the proposed devices facilitate the accurate analysis on the electrochemical performance of a fuel cell system and the development of highly-efficient fuel cells. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. |
| 资助信息 | UESTC new faculty startup fund |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59111]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | He, WD,Lin, X,Lv, WQ,et al. Electrochemical devices with optimized gas tightness for the diffusivity measurement in fuel cells[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2014,39(5):2334. |
| APA | He, WD,Lin, X,Lv, WQ,&Dickerson, JH.(2014).Electrochemical devices with optimized gas tightness for the diffusivity measurement in fuel cells.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,39(5),2334. |
| MLA | He, WD,et al."Electrochemical devices with optimized gas tightness for the diffusivity measurement in fuel cells".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 39.5(2014):2334. |
入库方式： OAI收割
来源：物理研究所
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