DICP OpenIR
Subject Area物理化学
A Durable Alternative for Proton-Exchange Membranes: Sulfonated Poly(Benzoxazole Thioether Sulfone)s
Zhao, Dan1,2,3; Li, Jinhuan1,4; Song, Min-Kyu1; Yi, Baolian2; Zhang, Huamin2; Liu, Meilin1; MeilinLiu
Source PublicationADVANCED ENERGY MATERIALS
2011-03-18
ISSN待补充
DOI10.1002/aenm.201000062
Volume1Issue:2Pages:203-211
Indexed BySCI
SubtypeArticle
DepartmentDNL17
Funding ProjectDNL17
Contribution Rank1,1
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science ; Physics
WOS KeywordPOLYMER ELECTROLYTE MEMBRANES ; POLY(ARYLENE ETHER SULFONE) ; FUEL-CELL APPLICATIONS ; POLYARYLENETHIOETHER SULFONES ; DEGRADATION MITIGATION ; POLY(SULFIDE SULFONE) ; MULTIBLOCK COPOLYMERS ; COMPOSITE MEMBRANES ; DURABILITY ; PERFORMANCE
AbstractA Durable Alternative for Proton-Exchange Membranes: Sulfonated Poly(Benzoxazole Thioether Sulfone)s; 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.
Language英语
WOS IDWOS:000291726200009
Citation statistics
Cited Times:32[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/115707
Collection中国科学院大连化学物理研究所
Corresponding AuthorMeilinLiu
Affiliation1.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
Recommended Citation
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.,...&MeilinLiu.(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.
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