{"title":"溴吡咯并[5]烯与磺化聚（芳基醚酮砜）交联可提高低离子交换容量膜的质子传导性","authors":"Xiaokang Dong, Hui Li*, Jingmei Xu, Xin Wang, Shuxin Wang, Yuting Yin, Chun-Li Song, Tian Lan, Zhe Wang* and Ying-Wei Yang*, ","doi":"10.1021/acsmaterialslett.4c0198010.1021/acsmaterialslett.4c01980","DOIUrl":null,"url":null,"abstract":"<p >Improving the overall performance of proton exchange membranes while maintaining high proton conductivity represents a persistent challenge. Bromo-functionalized pillar[5]arene (BrP5) is introduced as a multiarm cross-linker in sulfonated poly(aryl ether ketone sulfone) for the first time. Unlike traditional cross-linkers sacrificing proton conductivity, our pillararene-cross-linked membranes (SPAEKS-CL-QP5) retain cross-linking advantages without compromising conductivity, such as excellent oxidation stability (SPAEKS-CL-QP5-7% retained 84.2% after 24 h), low water absorption (9.7–18.4%), and low swelling (8.7–12.2%) at 80 °C, while exhibiting a high tensile strength of 50.4 MPa. SPAEKS-CL-QP5-7% exhibited a twice conductivity value per unit of ion exchange capacity (133.4 mS g cm<sup>–1</sup> mmol<sup>–1</sup>) compared to the control Am-SPAEKS (65.2 mS g cm<sup>–1</sup> mmol<sup>–1</sup>). The rigid pillar structure of pillararene macrocycles is critical to these performance improvements.</p>","PeriodicalId":9,"journal":{"name":"ACS Catalysis ","volume":null,"pages":null},"PeriodicalIF":11.3000,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Cross-Linking of Bromo-Pillar[5]arenes and Sulfonated Poly(Aryl Ether Ketone Sulfone) Enhances Proton Conductivity of Membranes at Low Ion Exchange Capacity\",\"authors\":\"Xiaokang Dong, Hui Li*, Jingmei Xu, Xin Wang, Shuxin Wang, Yuting Yin, Chun-Li Song, Tian Lan, Zhe Wang* and Ying-Wei Yang*, \",\"doi\":\"10.1021/acsmaterialslett.4c0198010.1021/acsmaterialslett.4c01980\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Improving the overall performance of proton exchange membranes while maintaining high proton conductivity represents a persistent challenge. Bromo-functionalized pillar[5]arene (BrP5) is introduced as a multiarm cross-linker in sulfonated poly(aryl ether ketone sulfone) for the first time. Unlike traditional cross-linkers sacrificing proton conductivity, our pillararene-cross-linked membranes (SPAEKS-CL-QP5) retain cross-linking advantages without compromising conductivity, such as excellent oxidation stability (SPAEKS-CL-QP5-7% retained 84.2% after 24 h), low water absorption (9.7–18.4%), and low swelling (8.7–12.2%) at 80 °C, while exhibiting a high tensile strength of 50.4 MPa. SPAEKS-CL-QP5-7% exhibited a twice conductivity value per unit of ion exchange capacity (133.4 mS g cm<sup>–1</sup> mmol<sup>–1</sup>) compared to the control Am-SPAEKS (65.2 mS g cm<sup>–1</sup> mmol<sup>–1</sup>). The rigid pillar structure of pillararene macrocycles is critical to these performance improvements.</p>\",\"PeriodicalId\":9,\"journal\":{\"name\":\"ACS Catalysis \",\"volume\":null,\"pages\":null},\"PeriodicalIF\":11.3000,\"publicationDate\":\"2024-10-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Catalysis \",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acsmaterialslett.4c01980\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Catalysis ","FirstCategoryId":"92","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsmaterialslett.4c01980","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
摘要
在保持高质子传导性的同时提高质子交换膜的整体性能是一项长期的挑战。溴功能化柱[5]炔（BrP5）首次作为多臂交联剂被引入磺化聚（芳基醚酮砜）中。与牺牲质子传导性的传统交联剂不同，我们的柱链烯交联膜（SPAEKS-CL-QP5）在不影响传导性的前提下保留了交联优势，例如出色的氧化稳定性（SPAEKS-CL-QP5-7% 在 24 小时后保留了 84.2%）、低吸水性（9.7-18.4%）和 80 °C 时低膨胀性（8.7-12.2%），同时还表现出 50.4 兆帕的高拉伸强度。SPAEKS-CL-QP5-7% 的单位离子交换容量电导率值（133.4 mS g cm-1 mmol-1）是对照组 Am-SPAEKS 的两倍（65.2 mS g cm-1 mmol-1）。柱状芳香族大环的刚性柱状结构是这些性能改进的关键。
Cross-Linking of Bromo-Pillar[5]arenes and Sulfonated Poly(Aryl Ether Ketone Sulfone) Enhances Proton Conductivity of Membranes at Low Ion Exchange Capacity
Improving the overall performance of proton exchange membranes while maintaining high proton conductivity represents a persistent challenge. Bromo-functionalized pillar[5]arene (BrP5) is introduced as a multiarm cross-linker in sulfonated poly(aryl ether ketone sulfone) for the first time. Unlike traditional cross-linkers sacrificing proton conductivity, our pillararene-cross-linked membranes (SPAEKS-CL-QP5) retain cross-linking advantages without compromising conductivity, such as excellent oxidation stability (SPAEKS-CL-QP5-7% retained 84.2% after 24 h), low water absorption (9.7–18.4%), and low swelling (8.7–12.2%) at 80 °C, while exhibiting a high tensile strength of 50.4 MPa. SPAEKS-CL-QP5-7% exhibited a twice conductivity value per unit of ion exchange capacity (133.4 mS g cm–1 mmol–1) compared to the control Am-SPAEKS (65.2 mS g cm–1 mmol–1). The rigid pillar structure of pillararene macrocycles is critical to these performance improvements.
期刊介绍：
ACS Catalysis is an esteemed journal that publishes original research in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. It offers broad coverage across diverse areas such as life sciences, organometallics and synthesis, photochemistry and electrochemistry, drug discovery and synthesis, materials science, environmental protection, polymer discovery and synthesis, and energy and fuels.
The scope of the journal is to showcase innovative work in various aspects of catalysis. This includes new reactions and novel synthetic approaches utilizing known catalysts, the discovery or modification of new catalysts, elucidation of catalytic mechanisms through cutting-edge investigations, practical enhancements of existing processes, as well as conceptual advances in the field. Contributions to ACS Catalysis can encompass both experimental and theoretical research focused on catalytic molecules, macromolecules, and materials that exhibit catalytic turnover.
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