MOF-74-type frameworks: tunable pore environment and functionality through metal and ligand modification

MOF-74-type frameworks are considered one of the most promising metal-organic frameworks owing to their remarkable structural features and properties such as a high density of open metal sites, hexagonal channels along the c -axis, and high porosity. Diverse strategies have been adopted to prepare b...

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Published inCrystEngComm Vol. 23; no. 6; pp. 1377 - 1387
Main Authors Kim, Hyojin, Hong, Chang Seop
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 01.01.2021
Subjects
Bimetals
Catalytic activity
Functional groups
Ligands
Metal-organic frameworks
Pore size
Porosity
Properties (attributes)
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Summary:MOF-74-type frameworks are considered one of the most promising metal-organic frameworks owing to their remarkable structural features and properties such as a high density of open metal sites, hexagonal channels along the c -axis, and high porosity. Diverse strategies have been adopted to prepare bimetallic MOF-74 frameworks, in the pursuit of synergistic effects and enhanced properties originating from different metal sites that serve as Lewis acidic sites. Moreover, extended versions of the MOF-74-type structure have been demonstrated in terms of ligand extension, featuring enhanced pore size and surface area. The extended variants of MOF-74 are beneficial for the incorporation of additional functional groups due to the relatively larger pore size. Pre- or post-synthetic modification approaches have been applied to introduce functionalities into the framework, resulting in desirable and superior properties such as chemical stability, binding affinity, and catalytic activity. This review addresses the significant progress made in the development of MOF-74-type frameworks with respect to synthetic strategies and modification approaches. This highlight demonstrates a comprehensive overview of MOF-74-type frameworks in terms of synthetic approaches and pre- or post-synthetic modification approaches.
Bibliography:Chang Seop Hong received his PhD degree from the Department of Chemistry at Korea Advanced Institute of Science and Technology in 1999 and undertook postdoctoral research at the Korea Research Institute of Standards and Science and at the University of California, Berkeley, during the period of 1999-2003. Since then, he has pursued his academic career at Korea University as an Assistant Professor in 2003, Associate Professor in 2006, and Professor in 2010. His current research has focused on the development of metal-organic frameworks and porous materials for gas storage and separation, sensing, and proton conductivity.
Hyojin Kim received her BS degree from Sookmyung Women's University, Korea, in 2018. She is now a graduate student under the supervision of Prof. Chang Seop Hong at Korea University. Her research interests include the synthesis and characterization of porous materials for gas storage and separation.
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ISSN:1466-8033
1466-8033
DOI:10.1039/d0ce01870h