Absorption, desorption, and transport of water in polymer electrolyte membranes for fuel cells
文献类型：期刊论文
| 作者 | Ge, SH; Li, XG; Yi, BL; Hsing, IM |
| 刊名 | journal of the electrochemical society
 |
| 出版日期 | 2005 |
| 卷号 | 152期号:6页码:a1149-a1157 |
| 英文摘要 | the transport of water vapor through a nafion membrane includes absorption of water at one membrane/gas diffusion layer interface, water transport in the membrane, and desorption of water at another interface. based on the structure of the membrane, a model for the water transport through the membrane is presented. it was assumed that the mass-transfer coefficients for the absorption and desorption of water and the water diffusion coefficient were dependent on the volume fraction of water (f(v)) in the membrane. these parameters were determined from steady-state water transport flux through the membranes at different water activity gradients. the results show that the mass-transfer coefficient for the absorption of water (k(a) = 3.53 x 10(-5)fv m/s, 353 k) is much lower than that for the desorption of water (k(d) = 1.42 x 10(-4)fv m/s, 353 k). the parameters k(a) and k(d) describe the nonequilibrium water uptake of the membrane on operating conditions. using these obtained parameters, the simulation results agree well with experimental data under many different conditions, including thickness of the membrane, water vapor/liquid water, temperature, and flow rate. © 2005 the electrochemical society. [doi: 10.1149/ 1.1899263] all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | electrochemistry ; materials science, coatings & films |
| 研究领域[WOS] | electrochemistry ; materials science |
| 关键词[WOS] | perfluorosulfonic acid membranes ; proton-exchange membranes ; mathematical-model ; nafion membranes ; management ; diffusion ; sorption ; simulation ; parameters ; resistance |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000229475300018 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/139755]  |
| 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.Hong Kong Univ Sci & Technol, Dept Chem Engn, Kowloon, Hong Kong, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Res & Dev Ctr, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ge, SH,Li, XG,Yi, BL,et al. Absorption, desorption, and transport of water in polymer electrolyte membranes for fuel cells[J]. journal of the electrochemical society,2005,152(6):a1149-a1157. |
| APA | Ge, SH,Li, XG,Yi, BL,&Hsing, IM.(2005).Absorption, desorption, and transport of water in polymer electrolyte membranes for fuel cells.journal of the electrochemical society,152(6),a1149-a1157. |
| MLA | Ge, SH,et al."Absorption, desorption, and transport of water in polymer electrolyte membranes for fuel cells".journal of the electrochemical society 152.6(2005):a1149-a1157. |
入库方式： OAI收割
来源：大连化学物理研究所
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