{"title":"Two novel lanthanide metal–organic frameworks based on tetraphenylethylene for ultra-high proton conduction","authors":"Qi Wu, Qianxi Li, Wenkang Zou, Zheyu Zhang, Yan Zhou, Qihua Zhao","doi":"10.1039/d4cc06013j","DOIUrl":null,"url":null,"abstract":"Two novel isostructural anionic lanthanide metal–organic frameworks, (Me<small><sub>2</sub></small>NH<small><sub>2</sub></small>)[Ln(HTCBPE-F)·(HCOO)·DMF]·4.5DMF·2H<small><sub>2</sub></small>O (<strong>Eu-MOF</strong> and <strong>Dy-MOF</strong>), based on tetraphenylethylene carboxylate ligands were successfully constructed and characterized. These two MOFs possess porous structures and water stabilities with uncoordinated carboxylate groups and dimethyl ammonium cations, which allow for high proton conductivities (5.35 × 10<small><sup>−2</sup></small> and 1.22 × 10<small><sup>−2</sup></small> S cm<small><sup>−1</sup></small>) at 98% RH (relative humidity) and 90 °C. Based on the structural characteristics and activation energy, the proton transfer mechanism is proposed.","PeriodicalId":67,"journal":{"name":"Chemical Communications","volume":"27 1","pages":""},"PeriodicalIF":4.3000,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Communications","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1039/d4cc06013j","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Two novel isostructural anionic lanthanide metal–organic frameworks, (Me2NH2)[Ln(HTCBPE-F)·(HCOO)·DMF]·4.5DMF·2H2O (Eu-MOF and Dy-MOF), based on tetraphenylethylene carboxylate ligands were successfully constructed and characterized. These two MOFs possess porous structures and water stabilities with uncoordinated carboxylate groups and dimethyl ammonium cations, which allow for high proton conductivities (5.35 × 10−2 and 1.22 × 10−2 S cm−1) at 98% RH (relative humidity) and 90 °C. Based on the structural characteristics and activation energy, the proton transfer mechanism is proposed.
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