期刊
JOURNAL OF MEMBRANE SCIENCE
卷 642, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.memsci.2021.119986
关键词
Poly (isatin biphenylene); Ether-free polymer; Organometallic cations; Alkaline stability; Anion exchange membranes
资金
- National Natural Science Foundation of China [22075031, 51603017]
- Jilin Provincial Science & Technology Department [20200801011 GH]
The study demonstrates that anion exchange membranes functionalized with organometallic cations exhibit excellent stability and comprehensive performance, showing potential applications in anion exchange membrane fuel cells to enhance the peak energy density of single cells.
The main obstacle of anion exchange membrane fuel cell is the unsatisfactory performance of its key component anion exchange membrane. The AEMs functionalized with organometallic cations have excellent stability and comprehensive performance. Here, we report a series of durable poly (isatin biphenylene) membranes with [CpFe-toluene]+organometallic cation, which have a durability of 1000 h in 1 M KOH at 60 degrees C, and the hydroxide conductivity of the membrane still remains 81.4%. At the same time, it has excellent dimensional stability (20.55%) and mechanical properties (56.42 MPa). Based on our rational design of [Cp-Fe-toluene]+functionalized poly (isatin biphenylene) membranes, the single cell with this membrane exhibits the peak energy density of 64.4 mW cm(-2) in H-2-air (CO2-free) at 60 degrees C. All these suggest that anion exchange membranes containing metal organic cations have potential.
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