AUTHOR=Tshuma Piwai , Makhubela Banothile C. E. , Ndamyabera Christophe A. , Bourne Susan A. , Mehlana Gift 

TITLE=Synthesis and Characterization of 2D Metal-Organic Frameworks for Adsorption of Carbon Dioxide and Hydrogen

JOURNAL=Frontiers in Chemistry

VOLUME=8

YEAR=2020

URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2020.581226

DOI=10.3389/fchem.2020.581226

ISSN=2296-2646

ABSTRACT=<p>The reaction of Cd(NO<sub>3</sub>)<sub>2</sub>·4H<sub>2</sub>O and Zn(NO<sub>3</sub>)<sub>2</sub>·6H<sub>2</sub>O with the bipyridyl dicarboxylate ligand H<sub>2</sub>bpydc (2,2′-bipyridine-4,4′-dicarboxylic acid) afforded two porous metal organic frameworks [Cd(bpydc)<sub>2</sub>(DMF)<sub>2</sub>·2DMF]<sub>n</sub> (JMS-3) and [Zn(bpydc)(DMF)·DMF]<sub>n</sub> (JMS-4). X-ray diffraction studies revealed that both JMS-3 and JMS-4 crystallize in the monoclinic crystal. The MOFs possess 2D interdigited networks with (<bold>sql</bold>) topology. Sorption studies showed that the activated phase of JMS-3 had CO<sub>2</sub> volumetric uptakes of 26.50 and 30.89 cm<sup>3</sup> (STP) g<sup>−1</sup> (1.18 and 1.39 mmol g<sup>−1</sup>) whist JMS-4 gave 10.96 and 16.08 cm<sup>3</sup> (STP) g<sup>−1</sup> (0.49 and 0.71 mmol g<sup>−1</sup>) at 298 and 273 K respectively.</p>