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Multiple Enhancement Effects of Crown Ether in Tröger's Base Polymers on the Performance of Anion Exchange Membranes.
ACS Appl Mater Interfaces. 2020 Jun 03; 12(22):24806-24816.AA

Abstract

The development of anion exchange membranes (AEMs) is hindered by the trade-off of ionic conductivity, alkaline stability, and mechanical properties. Tröger's base polymers (Tb-polymers) are recognized as promising membrane materials to overcome these obstacles. Herein, the AEMs made from Tb-poly(crown ether)s (Tb-PCEs) show good comprehensive performance. The influence of crown ether on the conductivity and alkaline stability of AEMs has been investigated in detail. The formation of hydronium ion-crown ether complexes and an obvious microphase-separated structure formed by the existence of crown ether can enhance the conductivity of the AEMs. The maximum OH- conductivity of 141.5 mS cm-1 is achieved from the Tb-PCEs based AEM (Tb-PCE-1) at 80 °C in ultrapure water. The ion-dipole interaction of the Na+ with crown ether can protect the quaternary ammonium from the attack of OH- to improve the alkaline stability of AEMs. After 675 h of alkaline treatment, the OH- conductivity of Tb-PCE-1 decreases by only 6%. The Tb-PCE-1-based single cell shows a peak power density of 0.202 W cm-2 at 80 °C. The prominent physicochemical properties are attributed to the well-developed microstructure of the Tb-PCEs, as revealed by TEM, AFM, and SAXS observations.

Authors+Show Affiliations

Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Department of Chemical & Biochemical Engineering, The College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China.Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Department of Chemical & Biochemical Engineering, The College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China.Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Department of Chemical & Biochemical Engineering, The College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China.Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Department of Chemical & Biochemical Engineering, The College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China.School of Energy and Chemical Engineering, Xiamen University Malaysia, Jalan Sunsuria, Bandar Sunsuria, Sepang 43900, Selangor Darul Ehsan, Malaysia.Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Department of Chemical & Biochemical Engineering, The College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China.Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Department of Chemical & Biochemical Engineering, The College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China.Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Department of Chemical & Biochemical Engineering, The College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32396331

Citation

Yang, Qian, et al. "Multiple Enhancement Effects of Crown Ether in Tröger's Base Polymers On the Performance of Anion Exchange Membranes." ACS Applied Materials & Interfaces, vol. 12, no. 22, 2020, pp. 24806-24816.
Yang Q, Cai YY, Zhu ZY, et al. Multiple Enhancement Effects of Crown Ether in Tröger's Base Polymers on the Performance of Anion Exchange Membranes. ACS Appl Mater Interfaces. 2020;12(22):24806-24816.
Yang, Q., Cai, Y. Y., Zhu, Z. Y., Sun, L. X., Choo, Y. S. L., Zhang, Q. G., Zhu, A. M., & Liu, Q. L. (2020). Multiple Enhancement Effects of Crown Ether in Tröger's Base Polymers on the Performance of Anion Exchange Membranes. ACS Applied Materials & Interfaces, 12(22), 24806-24816. https://doi.org/10.1021/acsami.0c05411
Yang Q, et al. Multiple Enhancement Effects of Crown Ether in Tröger's Base Polymers On the Performance of Anion Exchange Membranes. ACS Appl Mater Interfaces. 2020 Jun 3;12(22):24806-24816. PubMed PMID: 32396331.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Multiple Enhancement Effects of Crown Ether in Tröger's Base Polymers on the Performance of Anion Exchange Membranes. AU - Yang,Qian, AU - Cai,Yuan Yuan, AU - Zhu,Zhao Yu, AU - Sun,Li Xuan, AU - Choo,Yvonne Shuen Lann, AU - Zhang,Qiu Gen, AU - Zhu,Ai Mei, AU - Liu,Qing Lin, Y1 - 2020/05/22/ PY - 2020/5/13/pubmed PY - 2020/5/13/medline PY - 2020/5/13/entrez KW - Tröger’s base polymers KW - anion exchange membranes KW - fuel cells KW - poly(crown ether)s SP - 24806 EP - 24816 JF - ACS applied materials & interfaces JO - ACS Appl Mater Interfaces VL - 12 IS - 22 N2 - The development of anion exchange membranes (AEMs) is hindered by the trade-off of ionic conductivity, alkaline stability, and mechanical properties. Tröger's base polymers (Tb-polymers) are recognized as promising membrane materials to overcome these obstacles. Herein, the AEMs made from Tb-poly(crown ether)s (Tb-PCEs) show good comprehensive performance. The influence of crown ether on the conductivity and alkaline stability of AEMs has been investigated in detail. The formation of hydronium ion-crown ether complexes and an obvious microphase-separated structure formed by the existence of crown ether can enhance the conductivity of the AEMs. The maximum OH- conductivity of 141.5 mS cm-1 is achieved from the Tb-PCEs based AEM (Tb-PCE-1) at 80 °C in ultrapure water. The ion-dipole interaction of the Na+ with crown ether can protect the quaternary ammonium from the attack of OH- to improve the alkaline stability of AEMs. After 675 h of alkaline treatment, the OH- conductivity of Tb-PCE-1 decreases by only 6%. The Tb-PCE-1-based single cell shows a peak power density of 0.202 W cm-2 at 80 °C. The prominent physicochemical properties are attributed to the well-developed microstructure of the Tb-PCEs, as revealed by TEM, AFM, and SAXS observations. SN - 1944-8252 UR - https://www.unboundmedicine.com/medline/citation/32396331/Multiple_Enhancement_Effects_of_Crown_Ether_in_Tröger's_Base_Polymers_on_the_Performance_of_Anion_Exchange_Membranes L2 - https://dx.doi.org/10.1021/acsami.0c05411 DB - PRIME DP - Unbound Medicine ER -
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