Systematic screening of DMOF-1 with NH2, NO2, Br and azobenzene functionalities for elucidation of carbon dioxide and nitrogen separation properties

<p><strong>Publication:</strong> M. Xie. N. Prasetya and B. P. Ladewig,&nbsp;Systematic screening of DMOF-1 with NH2, NO2, Br and azobenzene functionalities for elucidation of carbon dioxide and nitrogen separation properties, Inorganic Chemistry Communications (2019).</p> <p><strong>Preprint:</strong>&nbsp;M. Xie. N. Prasetya and B. P. Ladewig,&nbsp;Systematic screening of DMOF-1 with NH2, NO2, Br and azobenzene functionalities for elucidation of carbon dioxide and nitrogen separation properties, Inorganic Chemistry Communications (2019),&nbsp;<a href="https://doi.org/10.26434/chemrxiv.8862239.v1">https://doi.org/10.26434/chemrxiv.8862239.v1</a></p> <p>Dataset supporting publication, including&nbsp;SEM images, optical microscope images, NMR spectra, data used in Figures, and full resolution figures as included in the manuscript.</p> <p><strong>Abstract:</strong>&nbsp;In this study, dabco MOF-1 (DMOF-1) with four different functional groups (NH₂, NO₂, Br and azobenzene) has been successfully synthesized through systematic control of the synthesis condition of their parent framework. The functionalised DMOF-1 is characterized using various analytical techniques including PXRD, TGA and N₂ sorption. The effect of the various functional groups on the performance of the MOFs for post-combustion CO₂ capture is evaluated. DMOF-1s with polar functional groups are found to have better affinity with CO₂ compared with the parent framework as indicated by higher CO₂ heat of adsorption. However, imparting steric hindrance to the framework as in Azo-DMOF-1 enhances CO₂/N₂ selectivity, potentially as a result of lower N2 affinity for the framework. &nbsp;</p>