One-dimensional imidazole aggregate in aluminium porous coordination polymers with high proton conductivity
Top Cited Papers
- 6 September 2009
- journal article
- Published by Springer Science and Business Media LLC in Nature Materials
- Vol. 8 (10), 831-836
- https://doi.org/10.1038/nmat2526
Abstract
The development of anhydrous proton-conductive materials operating at temperatures above 80 degrees C is a challenge that needs to be met for practical applications. Herein, we propose the new idea of encapsulation of a proton-carrier molecule--imidazole in this work--in aluminium porous coordination polymers for the creation of a hybridized proton conductor under anhydrous conditions. Tuning of the host-guest interaction can generate a good proton-conducting path at temperatures above 100 degrees C. The dynamics of the adsorbed imidazole strongly affect the conductivity determined by (2)H solid-state NMR. Isotope measurements of conductivity using imidazole-d4 showed that the proton-hopping mechanism was dominant for the conducting path. This work suggests that the combination of guest molecules and a variety of microporous frameworks would afford highly mobile proton carriers in solids and gives an idea for designing a new type of proton conductor, particularly for high-temperature and anhydrous conditions.Keywords
This publication has 44 references indexed in Scilit:
- Direct Imaging of Loaded Metal−Organic Framework Materials (Metal@MOF-5)Chemistry of Materials, 2008
- Conformation and Molecular Dynamics of Single Polystyrene Chain Confined in Coordination NanospaceJournal of the American Chemical Society, 2008
- Ruthenium Nanoparticles inside Porous [Zn4O(bdc)3] by Hydrogenolysis of Adsorbed [Ru(cod)(cot)]: A Solid-State Reference System for Surfactant-Stabilized Ruthenium ColloidsJournal of the American Chemical Society, 2008
- Generation of a solid Brønsted acid site in a chiral frameworkChemical Communications, 2008
- Synthesis and catalytic properties of MIL-100(Fe), an iron(iii) carboxylate with large poresChemical Communications, 2007
- Dynamic Motion of Building Blocks in Porous Coordination PolymersAngewandte Chemie-International Edition, 2006
- Metal–Organic Frameworks as Efficient Materials for Drug DeliveryAngewandte Chemie-International Edition, 2006
- Radical polymerisation of styrene in porous coordination polymersChemical Communications, 2005
- Motion of methanol adsorbed in porous coordination polymer with paramagnetic metal ionsChemical Communications, 2004
- Proton conducting blends of poly(4-vinylimidazole) with phosphoric acidSolid State Ionics, 2001