Highly conductive quaternary ammonium-containing cross-linked poly (vinyl pyrrolidone) for high-temperature PEM fuel cells with high-performance
文献类型：期刊论文
| 作者 | Bai, Huijuan1,2; Zhang, Jin1; Wang, Haining1; Xiang, Yan1; Lu, Shanfu1 |
| 刊名 | JOURNAL OF MEMBRANE SCIENCE
 |
| 出版日期 | 2022-03-05 |
| 卷号 | 645页码:9 |
| ISSN号 | 0376-7388 |
| 关键词 | Cross-linking HT-PEMs Mechanical property Proton conductivity Fuel cell |
| DOI | 10.1016/j.memsci.2021.120194 |
| 英文摘要 | Poly(vinyl pyrrolidone) (PVP)-based high-temperature polymer electrolyte membranes (HT-PEMs) doped with phosphoric acid (PA) present an attractive prospect for high-temperature fuel cell. However, its proton conductivities and mechanical properties are inversely dependent on PVP content in membranes. Herein, chloromethyl-polysulfone is used as a polymeric crosslinker to fabricate cross-linked PVP. The effects of chloromethylation degree of polysulfone on PVP cross-linking degree, free volume and other parameters are studied. The quaternary amine groups introduced by cross-linking reaction enhances PA adsorption and retention capacity of membrane. The increased molar free volume created by polymeric crosslinker can accommodate more PA storage and reduce the polymer main chain plasticization. Thus, the mechanical properties of membranes are maintained. When compared to uncross-linked C-PVP-0/PA, the cross-linked C-PVP-13.7%/PA exhibits improved mechanical strength with increasement of 140% (4.5 MPa) and enhanced proton conductivity with increasement of 119% (120.0 mS cm(-1)@160 & nbsp;C). Also, these superior characteristics allow a significantly enhanced H-2-O-2 fuel cell performance with the membrane of 724.9 mW cm(-2) @160 & nbsp;C, which has increasement of 50% in comparison with that of the C-PVP-0%/PA membrane, and excellent durability. These praiseworthy results suggest that the cross-linked membrane within moderately molar free volume is potential to act as HT-PEMs materials for real world applications. |
| WOS关键词 | EXCHANGE MEMBRANE ; BLEND MEMBRANES ; ETHER SULFONE) ; POLYBENZIMIDAZOLE ; POLYSULFONE ; COPOLYMERS ; LINKING |
| 资助项目 | National of Key R&D Program of China[2018YFB1502303] ; National Natural Science Foundation of China[22178012] ; National Natural Science Foundation of China[U19A2017] ; National Natural Science Foundation of China[21722601] |
| WOS研究方向 | Engineering ; Polymer Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000799054600002 |
| 资助机构 | National of Key R&D Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/53698]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Lu, Shanfu |
| 作者单位 | 1.Beihang Univ, Sch Space & Environm, Beijing Key Lab Bioinspired Energy Mat & Devices, Beijing 100191, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai, Huijuan,Zhang, Jin,Wang, Haining,et al. Highly conductive quaternary ammonium-containing cross-linked poly (vinyl pyrrolidone) for high-temperature PEM fuel cells with high-performance[J]. JOURNAL OF MEMBRANE SCIENCE,2022,645:9. |
| APA | Bai, Huijuan,Zhang, Jin,Wang, Haining,Xiang, Yan,&Lu, Shanfu.(2022).Highly conductive quaternary ammonium-containing cross-linked poly (vinyl pyrrolidone) for high-temperature PEM fuel cells with high-performance.JOURNAL OF MEMBRANE SCIENCE,645,9. |
| MLA | Bai, Huijuan,et al."Highly conductive quaternary ammonium-containing cross-linked poly (vinyl pyrrolidone) for high-temperature PEM fuel cells with high-performance".JOURNAL OF MEMBRANE SCIENCE 645(2022):9. |
入库方式： OAI收割
来源：过程工程研究所
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