0557695 - ÚACH 2023 RIV US eng J - Journal Article
Kloda, Matouš - Plecháček, T. - Ondrušová, Soňa - Brázda, Petr - Chalupský, Petr - Rohlíček, Jan - Demel, Jan - Hynek, Jan
Phosphinate MOFs Formed from Tetratopic Ligands as Proton-Conductive Materials.
Inorganic Chemistry. Roč. 61, č. 19 (2022), s. 7506-7512. ISSN 0020-1669. E-ISSN 1520-510X
R&D Projects: GA ČR(CZ) GA20-04408S
Grant - others:AV ČR(CZ) StrategieAV21/10
Program: StrategieAV
Institutional support: RVO:61388980 ; RVO:68378271
Keywords : Crystal structure * Electrical conductivity * Humidity * Metal organic frameworks * Molecules
OECD category: Inorganic and nuclear chemistry; Condensed matter physics (including formerly solid state physics, supercond.) (FZU-D)
Impact factor: 4.6, year: 2022
Method of publishing: Limited access
https://doi.org/10.1021/acs.inorgchem.2c00194

Metal-organic frameworks (MOFs) are attracting attention as potential proton conductors. There are two main advantages of MOFs in this application: the possibility of rational design and tuning of the properties and clear conduction pathways given by their crystalline structure. We hereby present two new MOF structures, ICR-10 and ICR-11, based on tetratopic phosphinate ligands. The structures of both MOFs were determined by 3D electron diffraction. They both crystallize in the P3¯ space group and contain arrays of parallel linear pores lined with hydrophilic noncoordinated phosphinate groups. This, together with the adsorbed water molecules, facilitates proton transfer via the Grotthuss mechanism, leading to a proton conductivity of up to 4.26 × 10-4 S cm-1 for ICR-11. The presented study demonstrates the high potential of phosphinate MOFs for the fabrication of proton conductors.
Permanent Link: http://hdl.handle.net/11104/0331602


Research data: ACS Publications