Novel proton exchange membranes based on structure-optimized poly(ether ether ketone ketone)s and nanocrystalline cellulose
文献类型：期刊论文
| 作者 | Ni, Chuangjiang1; Wei, Yingcong1; Zhao, Qi1; Liu, Baijun2; Sun, Zhaoyan3; Gu, Yan4; Zhang, Mingyao1; Hu, Wei1 |
| 刊名 | APPLIED SURFACE SCIENCE
 |
| 出版日期 | 2018-03-15 |
| 卷号 | 434页码:163-175 |
| ISSN号 | 0169-4332 |
| 关键词 | Sulfonated Fluorenyl-containing Poly(Arylene Ether Ketone)s Nanocrytalline Cellulose Nanocomposite Proton Exchange Membrane Fuel Cells |
| DOI | 10.1016/j.apsusc.2017.09.094 |
| 英文摘要 | Two sulfonated fluorenyl-containing poly(ether ether ketone ketone)s (SFPEEKKs) were synthesized as the matrix of composite proton exchange membranes by directly sulfonating copolymer precursors comprising non-sulfonatable fluorinated segments and sulfonatable fluorenyl-containing segments. Surface-modified nanocrystalline cellulose (NCC) was produced as the "performance-enhancing" filler by treating the microcrystalline cellulose with acid. Two families of SFPEEKK/NCC nanocomposite membranes with various NCC contents were prepared via a solution-casting procedure. Results revealed that the insertion of NCC at a suitable ratio could greatly enhance the proton conductivity of the pristine membranes. For example, the proton conductivity of SFPEEKK-60/NCC-4 (SFPEEKK with 60% fluorenyl segments in the repeating unit, and inserted with 4% NCC) composite membrane was as high as 0.245 S cm(-1) at 90 degrees C, which was 61.2% higher than that of the corresponding pure SFPEEKK-60 membrane. This effect could be attributed to the formation of hydrogen bond networks and proton conduction paths through the interaction between -SO3H/-OH groups on the surface of NCC particles and -SO3H groups on the SFPEEKK backbones. Furthermore, the chemically modified NCC filler and the optimized chemical structure of the SFPEEKK matrix also provided good dimensional stability and mechanical properties of the obtained nanocomposites. In conclusion, these novel nanocomposites can be promising proton exchange membranes for fuel cells at moderate temperatures. (C) 2017 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000419116600021 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/45435]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Hu, Wei |
| 作者单位 | 1.Changchun Univ Technol, Coll Chem Engn, 2055 Yanan St, Changchun 130012, Jilin, Peoples R China 2.Jilin Univ, Coll Chem, 2699 Qianjin St, Changchun 130012, Jilin, Peoples R China 3.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China 4.Yangtze Normal Univ, Coll Mech & Elect Engn, Chongqing 408100, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ni, Chuangjiang,Wei, Yingcong,Zhao, Qi,et al. Novel proton exchange membranes based on structure-optimized poly(ether ether ketone ketone)s and nanocrystalline cellulose[J]. APPLIED SURFACE SCIENCE,2018,434:163-175. |
| APA | Ni, Chuangjiang.,Wei, Yingcong.,Zhao, Qi.,Liu, Baijun.,Sun, Zhaoyan.,...&Hu, Wei.(2018).Novel proton exchange membranes based on structure-optimized poly(ether ether ketone ketone)s and nanocrystalline cellulose.APPLIED SURFACE SCIENCE,434,163-175. |
| MLA | Ni, Chuangjiang,et al."Novel proton exchange membranes based on structure-optimized poly(ether ether ketone ketone)s and nanocrystalline cellulose".APPLIED SURFACE SCIENCE 434(2018):163-175. |
入库方式： OAI收割
来源：化学研究所
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