{"title":"质子交换膜(PEM)的质子传导性能及其与物理化学特性的相关性","authors":"","doi":"10.1016/j.cjche.2024.06.011","DOIUrl":null,"url":null,"abstract":"<div><p>Graphene oxide (GO) filler containing diversified Nafion-based proton exchange membrane (PEM) is studied to know the unique physical and chemical properties and performances of PEM. Nafion-SPEEK 1%-GO 0.75% (NSG-0.75%) composite shows the highest proton conductivity of 0.327 S·cm<sup>−1</sup> at 90 °C and 100% RH (relative humidity) among all the PEM investigated. The descending order of significant proton conductivity is found as; Nafion-sPGO(1%) 0.306 S·cm<sup>−1</sup> > Nafion/ZIF-8@GO 0.280 S·cm<sup>−1</sup> > Nafion/PGO (2%) 0.277 S·cm<sup>−1</sup> > Nafion/GO-sulfur (3%) 0.232 S·cm<sup>−1</sup> > Nafion/GO-poly-SPM-<em>co</em>-PEGMEMA(1%) 0.229 S·cm<sup>−1</sup> > Nafion/Ce-sPGO(1%) 0.215 S·cm<sup>−1</sup>. The proton conductivity, water uptake capacity and ion exchange capacity, hydration number, thermal and oxidative stability, mechanical integrity (tensile strength), maximum power, and current density are found to be increased while activation energy and fuel crossover show a decrement as GO or modified GO is incorporated in the Nafion matrix. Principal component analysis (PCA) predicted a significant correlation between the proton conductivity and the properties; the water uptake capacity, ion exchange capacity, hydration number, maximum power density, and maximum current density are 0.598%, 0.688%, 0.894%, 0.980%, and 0.852% accordingly. A multiple linear model equation of proton conductivity is defined with the parameters of water uptake capacity, ion exchange capacity, hydration number, maximum power density, and maximum current density whereas the regression coefficient is 0.9923.</p></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":3.7000,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Proton conductivity performance and its correlation with physio-chemical properties of proton exchange membrane (PEM)\",\"authors\":\"\",\"doi\":\"10.1016/j.cjche.2024.06.011\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Graphene oxide (GO) filler containing diversified Nafion-based proton exchange membrane (PEM) is studied to know the unique physical and chemical properties and performances of PEM. Nafion-SPEEK 1%-GO 0.75% (NSG-0.75%) composite shows the highest proton conductivity of 0.327 S·cm<sup>−1</sup> at 90 °C and 100% RH (relative humidity) among all the PEM investigated. The descending order of significant proton conductivity is found as; Nafion-sPGO(1%) 0.306 S·cm<sup>−1</sup> > Nafion/ZIF-8@GO 0.280 S·cm<sup>−1</sup> > Nafion/PGO (2%) 0.277 S·cm<sup>−1</sup> > Nafion/GO-sulfur (3%) 0.232 S·cm<sup>−1</sup> > Nafion/GO-poly-SPM-<em>co</em>-PEGMEMA(1%) 0.229 S·cm<sup>−1</sup> > Nafion/Ce-sPGO(1%) 0.215 S·cm<sup>−1</sup>. The proton conductivity, water uptake capacity and ion exchange capacity, hydration number, thermal and oxidative stability, mechanical integrity (tensile strength), maximum power, and current density are found to be increased while activation energy and fuel crossover show a decrement as GO or modified GO is incorporated in the Nafion matrix. Principal component analysis (PCA) predicted a significant correlation between the proton conductivity and the properties; the water uptake capacity, ion exchange capacity, hydration number, maximum power density, and maximum current density are 0.598%, 0.688%, 0.894%, 0.980%, and 0.852% accordingly. A multiple linear model equation of proton conductivity is defined with the parameters of water uptake capacity, ion exchange capacity, hydration number, maximum power density, and maximum current density whereas the regression coefficient is 0.9923.</p></div>\",\"PeriodicalId\":9966,\"journal\":{\"name\":\"Chinese Journal of Chemical Engineering\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.7000,\"publicationDate\":\"2024-07-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chinese Journal of Chemical Engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S100495412400226X\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chinese Journal of Chemical Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S100495412400226X","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Proton conductivity performance and its correlation with physio-chemical properties of proton exchange membrane (PEM)
Graphene oxide (GO) filler containing diversified Nafion-based proton exchange membrane (PEM) is studied to know the unique physical and chemical properties and performances of PEM. Nafion-SPEEK 1%-GO 0.75% (NSG-0.75%) composite shows the highest proton conductivity of 0.327 S·cm−1 at 90 °C and 100% RH (relative humidity) among all the PEM investigated. The descending order of significant proton conductivity is found as; Nafion-sPGO(1%) 0.306 S·cm−1 > Nafion/ZIF-8@GO 0.280 S·cm−1 > Nafion/PGO (2%) 0.277 S·cm−1 > Nafion/GO-sulfur (3%) 0.232 S·cm−1 > Nafion/GO-poly-SPM-co-PEGMEMA(1%) 0.229 S·cm−1 > Nafion/Ce-sPGO(1%) 0.215 S·cm−1. The proton conductivity, water uptake capacity and ion exchange capacity, hydration number, thermal and oxidative stability, mechanical integrity (tensile strength), maximum power, and current density are found to be increased while activation energy and fuel crossover show a decrement as GO or modified GO is incorporated in the Nafion matrix. Principal component analysis (PCA) predicted a significant correlation between the proton conductivity and the properties; the water uptake capacity, ion exchange capacity, hydration number, maximum power density, and maximum current density are 0.598%, 0.688%, 0.894%, 0.980%, and 0.852% accordingly. A multiple linear model equation of proton conductivity is defined with the parameters of water uptake capacity, ion exchange capacity, hydration number, maximum power density, and maximum current density whereas the regression coefficient is 0.9923.
期刊介绍:
The Chinese Journal of Chemical Engineering (Monthly, started in 1982) is the official journal of the Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co. Ltd. The aim of the journal is to develop the international exchange of scientific and technical information in the field of chemical engineering. It publishes original research papers that cover the major advancements and achievements in chemical engineering in China as well as some articles from overseas contributors.
The topics of journal include chemical engineering, chemical technology, biochemical engineering, energy and environmental engineering and other relevant fields. Papers are published on the basis of their relevance to theoretical research, practical application or potential uses in the industry as Research Papers, Communications, Reviews and Perspectives. Prominent domestic and overseas chemical experts and scholars have been invited to form an International Advisory Board and the Editorial Committee. It enjoys recognition among Chinese academia and industry as a reliable source of information of what is going on in chemical engineering research, both domestic and abroad.