Sorbitol-plasticized chitosan/zeolite hybrid membrane for direct methanol fuel cell
文献类型：期刊论文
| 作者 | Yuan, WK; Wu, H; Zheng, D; Zheng, XH; Jiang, ZY; Hao, XP; Wang, BY ; Hao XP(郝小鹏); Wang BY(王宝义)
|
| 刊名 | JOURNAL OF POWER SOURCES
 |
| 出版日期 | 2007 |
| 卷号 | 172期号:2页码:604-612 |
| 关键词 | DMFC organic-inorganic hybrid membrane plasticizer interfacial morphology methanol crossover |
| 通讯作者 | Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Key Lab Nucl Anal Tech, Beijing 100049, Peoples R China |
| 英文摘要 | Organic-inorganic hybrid membranes, as promising direct methanol fuel cell membranes, have become a research focus in recent years. Wherein interfacial morphology, greatly influenced by the polymer chain flexibility and interfacial stress generated during membrane formation, is a critical determinant of efficient suppression of methanol crossover. In this study, a novel and feasible approach for rational fabrication of organic/inorganic hybrid direct methanol fuel cell (DMFC) membrane is tentatively explored. By adding plasticizer in the membrane casting solution and/or elevating solvent evaporation temperature during membrane fabrication, the glass transition temperature (Tg) and crystallinity of the chitosan/zeolitehybrid membrane are both remarkably decreased. In particular, the interface voids are substantially eliminated, generating a more desirable interfacial morphology and consequently leading to an improved performance in suppressing methanol crossover. The chitosan/mordenite/sorbitol hybrid membrane prepared with 30 wt% of sorbitol and 15 wt% of mordenite exhibits a 44% reduction in methanol permeability compared with chitosan control membrane. The variation of methanol permeability with mordenite and sorbital content is tentatively elucidated by the change of free volume cavity size in the membrane determined by positron annihilation lifetime spectroscopy (PALS) measurements. (c) 2007 Elsevier B.V. All rights reserved. |
| 学科主题 | Electrochemistry; Energy & Fuels |
| 类目[WOS] | Electrochemistry ; Energy & Fuels |
| 研究领域[WOS] | Electrochemistry ; Energy & Fuels |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000250654700013 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/238088]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Yuan, WK,Wu, H,Zheng, D,et al. Sorbitol-plasticized chitosan/zeolite hybrid membrane for direct methanol fuel cell[J]. JOURNAL OF POWER SOURCES,2007,172(2):604-612. |
| APA | Yuan, WK.,Wu, H.,Zheng, D.,Zheng, XH.,Jiang, ZY.,...&王宝义.(2007).Sorbitol-plasticized chitosan/zeolite hybrid membrane for direct methanol fuel cell.JOURNAL OF POWER SOURCES,172(2),604-612. |
| MLA | Yuan, WK,et al."Sorbitol-plasticized chitosan/zeolite hybrid membrane for direct methanol fuel cell".JOURNAL OF POWER SOURCES 172.2(2007):604-612. |
入库方式： OAI收割
来源：高能物理研究所
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。