Superprotonic conduction through one-dimensional ordered alkali metal ion chains in a lanthanide-organic framework

Although no evident hydrogen-bond network appears, an ultrahigh proton conductivity of 2.91 × 10-2 S cm-1 at 363 K and 90% RH with an ultralow activation energy of 0.10 eV was observed in an anionic lanthanide-organic framework Na2[Eu(SDB)2(COO)]·0.375DMF·0.4H2O (1); both values approach the records...

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Published inChemical communications (Cambridge, England) Vol. 54; no. 35; pp. 4429 - 4432
Main Authors Wang, Xia, Wang, Yanlong, Silver, Mark A, Gui, Daxiang, Bai, Zhuanling, Wang, Yaxing, Liu, Wei, Chen, Lanhua, Diwu, Juan, Chai, Zhifang, Wang, Shuao
Format Journal Article
LanguageEnglish
Published England Royal Society of Chemistry 2018
Royal Society of Chemistry (RSC)
Subjects
Alkali metals
Proton conduction
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Summary:Although no evident hydrogen-bond network appears, an ultrahigh proton conductivity of 2.91 × 10-2 S cm-1 at 363 K and 90% RH with an ultralow activation energy of 0.10 eV was observed in an anionic lanthanide-organic framework Na2[Eu(SDB)2(COO)]·0.375DMF·0.4H2O (1); both values approach the records among all reported proton-conducting MOF materials. This suggests that the proton conduction process in 1 is reminiscent of the Grotthuss mechanism, which together reveals an effective proton transportation pathway associated with aligned Na+ and their coordinated water.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
SC0016568
USDOE Office of Science (SC), Basic Energy Sciences (BES)
ISSN:1359-7345
1364-548X
DOI:10.1039/c8cc00572a