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Proton Conductivity as a Function of the Metal Center in the Porphyrinylphosphonate-Based MOFsстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 12 января 2022 г.
- Авторы: Enakieva Yulia Y., Zhigileva Ekaterina A., Fitch A.N., Chernyshev Vladimir V., Stenina Irina A., Yaroslavtsev Andrey B., Sinelshchikova Anna A., Kovalenko Konstantin A., Gorbunova Yulia G., Tsivadze Aslan Yu
- Журнал: Dalton Transactions
- Том: 50
- Номер: 19
- Год издания: 2021
- Издательство: Royal Society of Chemistry
- Местоположение издательства: United Kingdom
- Первая страница: 6549
- Последняя страница: 6560
- DOI: 10.1039/d1dt00612f
- Аннотация: The rational design of metal–organic frameworks (MOFs) is highly important for the development of new proton conductors. Porphyrinylphosphonate-based MOFs, providing the directed tuning of physical and chemical properties of materials through the modification of a macrocycle, are potentially high-conducting systems. In this work the synthesis and characterization of novel anionic Zn-containing MOF based on palladium(II) meso-tetrakis(3-(phosphonatophenyl))porphyrinate, IPCE-2Pd, are reported. Moreover, the proton-conductive properties and structures of two anionic Zn-containing MOFs based on previously described nickel(II) and novel palladium(II) porphyrinylphosphonates, IPCE-2M (M = Ni(II) or Pd(II)), are compared in details. The high proton conductivity of 1.0 × 10−2 S cm−1 at 75 °C and 95% relative humidity (RH) is revealed for IPCE-2Ni, while IPCE-2Pd exhibits higher hydrolytic and thermal stability of the material (up to 420 °C) simultaneously maintaining a comparable value of conductivity (8.11 × 10−3 S cm−1 at 95 °C and 95% RH). The nature of the porphyrin metal center is responsible for the features of crystal structure of materials, obtained under identical reaction conditions. The structures of IPCE-2Pd and its dehydrated derivative IPCE-2Pd-HT are determined from the synchrotron powder diffraction data. The presence of phosphonic groups in compared materials IPCE-2M affords a high concentration of proton carriers that together with the sorption of water molecules leads to a high proton conductivity.
- Добавил в систему: Енакиева Юлия Юрьевна