Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/326783
Type: Artigo
Title: Ligand And Metal Effects On The Stability And Adsorption Properties Of An Isoreticular Series Of Mofs Based On T-shaped Ligands And Paddle-wheel Secondary Building Units
Ligand and metal effects on the stability and adsorption properties of an isoreticular series of MOFs based on T-shaped ligands and paddle-wheel secondary building units
Author: Xiong, Y.
Fan, Y.-Z.
Borges, D. D.
Chen, C.-X.
Wei, Z.-W.
Wang, H.-P.
Pan, M.
Jiang, J.-J.
Maurin, G.
Su, C.-Y.
Abstract: The synthesis of stable porous materials with appropriate pore size and shape for desired applications remains challenging. In this work a combined experimental/computational approach has been undertaken to tune the stability under various conditions and the adsorption behavior of a series of MOFs by subtle control of both the nature of the metal center (Co2+, Cu2+, and Zn2+) and the pore surface by the functionalization of the organic linkers with amido and N-oxide groups. In this context, six isoreticular MOFs based on T-shaped ligands and paddle-wheel units with ScD0.33 topology have been synthesized. Their stabilities have been systematically investigated along with their ability to adsorb a wide range of gases (N-2, CO2, CH4, CO, H-2, light hydrocarbons (C-1-C-4)) and vapors (alcohols and water). This study has revealed that the MOF frameworks based on Cu2+ are more stable than their Co2+ and Zn2+ analogues, and that the N-oxide ligand endows the MOFs with a higher affinity for CO2 leading to excellent selectivity for this gas over other species.
The synthesis of stable porous materials with appropriate pore size and shape for desired applications remains challenging. In this work a combined experimental/computational approach has been undertaken to tune the stability under various conditions and the adsorption behavior of a series of MOFs by subtle control of both the nature of the metal center (Co2+, Cu2+, and Zn2+) and the pore surface by the functionalization of the organic linkers with amido and N-oxide groups. In this context, six isoreticular MOFs based on T-shaped ligands and paddle-wheel units with ScD0.33 topology have been synthesized. Their stabilities have been systematically investigated along with their ability to adsorb a wide range of gases (N-2, CO2, CH4, CO, H-2, light hydrocarbons (C-1-C-4)) and vapors (alcohols and water). This study has revealed that the MOF frameworks based on Cu2+ are more stable than their Co2+ and Zn2+ analogues, and that the N-oxide ligand endows the MOFs with a higher affinity for CO2 leading to excellent selectivity for this gas over other species.
Subject: Adsorption
Carbon Dioxide Capture
Ligand Effects
Light Hydrocarbons
Metal-organic Frameworks
Water Stability
Adsorção, Dióxido de carbono, Hidrocarbonetos, Compostos organometálicos
Country: Alemanha
Editor: Wiley-VCH Verlag
Citation: Chemistry-a European Journal. Wiley-v C H Verlag Gmbh, v. 22, p. 16147 - 16156, 2016.
Rights: fechado
Identifier DOI: 10.1002/chem.201603299
Address: https://onlinelibrary.wiley.com/doi/full/10.1002/chem.201603299
Date Issue: 2016
Appears in Collections:IFGW - Artigos e Outros Documentos

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