Sinan Jiang , Bengui Zhang , Qian Liu , Zhenfeng Sun , Chao Yang , Xinyu Pang , Xinyan Zhang , Tao Li , Yuchao Yang , Songwei Zhang , Enlei Zhang , Kangjun Wang , Yixin Liu
{"title":"用于钒氧化还原液流电池的导电性增强型膨胀诱导三苯基膦功能化含金刚烷的聚(芳基醚酮)膜","authors":"Sinan Jiang , Bengui Zhang , Qian Liu , Zhenfeng Sun , Chao Yang , Xinyu Pang , Xinyan Zhang , Tao Li , Yuchao Yang , Songwei Zhang , Enlei Zhang , Kangjun Wang , Yixin Liu","doi":"10.1016/j.memsci.2024.123023","DOIUrl":null,"url":null,"abstract":"<div><p>To develop highly conductive membranes for VRFB, triphenyl quaternary phosphonium cationic groups were introduced into unique adamantane-containing poly(aryl ether ketone) to prepare TAPEK membranes. The selective swelling-induced microphase separation strategy was also adopted to strengthen membrane conductivity. The quaternary phosphonium groups give the membrane the Donnan repulsion effect, so the TAPEK membrane exhibits low area resistance and a good barrier to cross-mixing vanadium ions. The TAPEK-100 membrane exhibited a low area resistance of 0.12 Ω cm<sup>−2</sup>, lower than the current state-of-the-art Nafion212 membrane (0.14 Ω cm<sup>−2</sup>). TAPEK membranes were used for VRFB for the first time, and the TAPEK-100 exhibited excellent energy efficiency in VRFB (EE=91.0 % at 80 mAcm<sup>−2</sup>, EE=85.1 % at 200 mAcm<sup>−2,</sup> EE=80.36 % at 280 mAcm<sup>−2</sup>, and EE=79.32 % at 300 mAcm<sup>−2</sup>). TAPEK membrane showed insufficient stability in <em>in-situ</em> and <em>ex-situ</em> stability tests. The battery efficiency of VRFB with TAPEK-90 membrane dropped significantly after more than 823 cycles in the cycling test. Given the high conductivity of TAPEK membranes, more work related to enhancing the stability of quaternary phosphonium groups-containing membranes needs further study.</p></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":null,"pages":null},"PeriodicalIF":8.4000,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Conductivity-enhanced swelling-induced triphenylphosphine-functionalized adamantane-containing poly(aryl ether ketone) membranes for vanadium redox flow batteries\",\"authors\":\"Sinan Jiang , Bengui Zhang , Qian Liu , Zhenfeng Sun , Chao Yang , Xinyu Pang , Xinyan Zhang , Tao Li , Yuchao Yang , Songwei Zhang , Enlei Zhang , Kangjun Wang , Yixin Liu\",\"doi\":\"10.1016/j.memsci.2024.123023\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>To develop highly conductive membranes for VRFB, triphenyl quaternary phosphonium cationic groups were introduced into unique adamantane-containing poly(aryl ether ketone) to prepare TAPEK membranes. The selective swelling-induced microphase separation strategy was also adopted to strengthen membrane conductivity. The quaternary phosphonium groups give the membrane the Donnan repulsion effect, so the TAPEK membrane exhibits low area resistance and a good barrier to cross-mixing vanadium ions. The TAPEK-100 membrane exhibited a low area resistance of 0.12 Ω cm<sup>−2</sup>, lower than the current state-of-the-art Nafion212 membrane (0.14 Ω cm<sup>−2</sup>). TAPEK membranes were used for VRFB for the first time, and the TAPEK-100 exhibited excellent energy efficiency in VRFB (EE=91.0 % at 80 mAcm<sup>−2</sup>, EE=85.1 % at 200 mAcm<sup>−2,</sup> EE=80.36 % at 280 mAcm<sup>−2</sup>, and EE=79.32 % at 300 mAcm<sup>−2</sup>). TAPEK membrane showed insufficient stability in <em>in-situ</em> and <em>ex-situ</em> stability tests. The battery efficiency of VRFB with TAPEK-90 membrane dropped significantly after more than 823 cycles in the cycling test. Given the high conductivity of TAPEK membranes, more work related to enhancing the stability of quaternary phosphonium groups-containing membranes needs further study.</p></div>\",\"PeriodicalId\":368,\"journal\":{\"name\":\"Journal of Membrane Science\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":8.4000,\"publicationDate\":\"2024-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Membrane Science\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0376738824006173\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Membrane Science","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0376738824006173","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
To develop highly conductive membranes for VRFB, triphenyl quaternary phosphonium cationic groups were introduced into unique adamantane-containing poly(aryl ether ketone) to prepare TAPEK membranes. The selective swelling-induced microphase separation strategy was also adopted to strengthen membrane conductivity. The quaternary phosphonium groups give the membrane the Donnan repulsion effect, so the TAPEK membrane exhibits low area resistance and a good barrier to cross-mixing vanadium ions. The TAPEK-100 membrane exhibited a low area resistance of 0.12 Ω cm−2, lower than the current state-of-the-art Nafion212 membrane (0.14 Ω cm−2). TAPEK membranes were used for VRFB for the first time, and the TAPEK-100 exhibited excellent energy efficiency in VRFB (EE=91.0 % at 80 mAcm−2, EE=85.1 % at 200 mAcm−2, EE=80.36 % at 280 mAcm−2, and EE=79.32 % at 300 mAcm−2). TAPEK membrane showed insufficient stability in in-situ and ex-situ stability tests. The battery efficiency of VRFB with TAPEK-90 membrane dropped significantly after more than 823 cycles in the cycling test. Given the high conductivity of TAPEK membranes, more work related to enhancing the stability of quaternary phosphonium groups-containing membranes needs further study.
期刊介绍:
The Journal of Membrane Science is a publication that focuses on membrane systems and is aimed at academic and industrial chemists, chemical engineers, materials scientists, and membranologists. It publishes original research and reviews on various aspects of membrane transport, membrane formation/structure, fouling, module/process design, and processes/applications. The journal primarily focuses on the structure, function, and performance of non-biological membranes but also includes papers that relate to biological membranes. The Journal of Membrane Science publishes Full Text Papers, State-of-the-Art Reviews, Letters to the Editor, and Perspectives.