A Durable Alternative for Proton-Exchange Membranes: Sulfonated Poly(Benzoxazole Thioether Sulfone)s
文献类型：期刊论文
| 作者 | Zhao, Dan1,2,3; Li, Jinhuan1,4; Song, Min-Kyu1; Yi, Baolian2; Zhang, Huamin2; Liu, Meilin1 |
| 刊名 | advanced energy materials
 |
| 出版日期 | 2011-03-18 |
| 卷号 | 1期号:2页码:203-211 |
| ISSN号 | 待补充 |
| 通讯作者 | meilinliu |
| 产权排序 | 1,1 |
| 中文摘要 | a durable alternative for proton-exchange membranes: sulfonated poly(benzoxazole thioether sulfone)s |
| 英文摘要 | to develop a durable proton-exchange membrane (pem) for fuel-cell applications, a series of sulfonated poly(benzoxazole thioether sulfone)s (sptesbos) are designed and synthesized, with anticipated good dimensional stability (via acid-base cross linking), improved oxidative stability against free radicals (via incorporation of thioether groups), and enhanced inherent stability (via elimination of unstable end groups) of the backbone. the structures and the degree of sulfonation of the copolymers are characterized using fourier-transform infrared spectroscopy, and nuclear magnetic resonance spectroscopy (h-1 nmr and f-19 nmr). the electrochemical stabilities of the monomers are examined using cyclic voltammetry in a typical three-electrode cell configuration. the physicochemical properties of the membranes vital to fuel-cell performance are also carefully evaluated under conditions relevant to fuel-cell operation, including chemical and thermal stability, proton conductivity, solubility in different solvents, water uptake, and swelling ratio. the new membranes exhibit low dimensional change at 25 degrees c to 90 degrees c and excellent thermal stability up to 250 degrees c. upon elimination of unstable end groups, the co-polymers display enhanced chemical resistance and oxidative stability in fenton's test. further, the sptesbo-hfb-60 (hfb-60=hexafluorobenzene, 60 mol% sulfone) membrane displays comparable fuel-cell performance to that of an nre 212 membrane at 80 degrees c under fully humidified condition, suggesting that the new membranes have the potential to be more durable but less expensive for fuel-cell applications. |
| 学科主题 | 物理化学 |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; energy & fuels ; materials science, multidisciplinary ; physics, applied ; physics, condensed matter |
| 研究领域[WOS] | chemistry ; energy & fuels ; materials science ; physics |
| 关键词[WOS] | polymer electrolyte membranes ; poly(arylene ether sulfone) ; fuel-cell applications ; polyarylenethioether sulfones ; degradation mitigation ; poly(sulfide sulfone) ; multiblock copolymers ; composite membranes ; durability ; performance |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000291726200009 |
| 公开日期 | 2012-07-09 |
| 源URL | [http://159.226.238.44/handle/321008/115707]  |
| 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.Georgia Inst Technol, Sch Mat Sci & Engn, Ctr Innovat Fuel Cell & Battery Technol, Atlanta, GA 30332 USA 2.Chinese Acad Sci, Dalian Inst Chem Phys, Lab PEMFC Key Mat & Technol, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 4.Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Dan,Li, Jinhuan,Song, Min-Kyu,et al. A Durable Alternative for Proton-Exchange Membranes: Sulfonated Poly(Benzoxazole Thioether Sulfone)s[J]. advanced energy materials,2011,1(2):203-211. |
| APA | Zhao, Dan,Li, Jinhuan,Song, Min-Kyu,Yi, Baolian,Zhang, Huamin,&Liu, Meilin.(2011).A Durable Alternative for Proton-Exchange Membranes: Sulfonated Poly(Benzoxazole Thioether Sulfone)s.advanced energy materials,1(2),203-211. |
| MLA | Zhao, Dan,et al."A Durable Alternative for Proton-Exchange Membranes: Sulfonated Poly(Benzoxazole Thioether Sulfone)s".advanced energy materials 1.2(2011):203-211. |
入库方式： OAI收割
来源：大连化学物理研究所
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