Achieving Superprotonic Conduction in Metal-Organic Frameworks through Iterative Design Advances.

Autor: Kim S; Department of Chemistry, University of Calgary , Calgary, AB T2N 1N4, Canada., Joarder B; Department of Chemistry, University of Calgary , Calgary, AB T2N 1N4, Canada., Hurd JA; Department of Chemistry, University of Calgary , Calgary, AB T2N 1N4, Canada., Zhang J; Department of Chemistry, University of Calgary , Calgary, AB T2N 1N4, Canada., Dawson KW; Department of Chemistry, University of Calgary , Calgary, AB T2N 1N4, Canada., Gelfand BS; Department of Chemistry, University of Calgary , Calgary, AB T2N 1N4, Canada., Wong NE; Department of Chemistry, University of Calgary , Calgary, AB T2N 1N4, Canada., Shimizu GKH; Department of Chemistry, University of Calgary , Calgary, AB T2N 1N4, Canada.
Jazyk: angličtina
Zdroj: Journal of the American Chemical Society [J Am Chem Soc] 2018 Jan 24; Vol. 140 (3), pp. 1077-1082. Date of Electronic Publication: 2018 Jan 09.
DOI: 10.1021/jacs.7b11364
Abstrakt: Two complementary design strategies, isomorphous ligand replacement and heterocycle doping, have been applied to iteratively enhance the proton conductivity of a metal-organic framework, β-PCMOF2. The resulting materials, PCMOF2 1 / 2 (Pz) and PCMOF2 1 / 2 (Tz) (Pz = 1H-pyrazole, Tz = 1H-1,2,4-triazole), have their proton conduction raised almost 2 orders of magnitude compared to β-PCMOF2. The bulk conductivities of these materials are over 10 -1 S cm -1 at 85 °C and 90% relative humidity (RH), while maintaining the parent MOF structure. A solid state synthetic route for doping 1-D channels is also presented.
Databáze: MEDLINE