Ligand Functionalization in Metal-Organic Frameworks for Enhanced Carbon Dioxide Adsorption

Abstract

Ligand functionalization in metal-organic frameworks (MOFs) has been studied extensively and has been demonstrated to enhance gas adsorption and induce interesting gas adsorption phenomena. This account summarizes our recent study of three series of MOFs by ligand functionalization, as well as their carbon dioxide adsorption properties. While ligand functionalization does not change the overall structure of the frameworks, it can influence their gas adsorption behavior. In the first two series, we show how ligand functionalization influences the CO2 affinity and adsorption capacity of MOFs. We also show a special case in which subtle changes in ligand functionality alter the CO2 adsorption profile.

Metal–organic frameworks in a blended polythiophene hybrid film with surface-mediated vertical phase separation for the fabrication of a humidity sensor

“…Metal-organic frameworks (MOFs) are rapidly emerging as an organic/inorganic hybrid porous material that can easily self-assemble through an organic linker and a metal ion cluster. [23][24][25] In addition to providing an excellent porosity compared to other porous materials, such as zeolites and carbon materials, the large surface area, tunable pore size, and functional diversity of MOFs lends these materials utility in gas storage, gas separation, catalysis, and sensing applications. [26][27][28][29] In this study, we developed a OTFT-based sensor by fabricating a hybrid lm blend comprising a conjugated polymer and MOFs.…”

Highly Efficient Blue Phosphorescence from Pillar‐Layer MOFs by Ligand Functionalization

“…[ 25–27 ] However, the coupling effect between the aromatic ligands results in a red‐shift of phosphorescence along with triplet‐triplet annihilation (TTA), which makes the efficient blue phosphorescence impossible. Ligand functionalization through adding a functional group to the parent ligand, expanding/shortening its backbone, or slightly modifying the backbone's functionality [ 41 ] will help to disperse and stabilize the chromophores. To deconcentrate the aromatic ligands and hinder their coupling, some building units with large volumes, such as 0D clusters, 1D chains or ladders, and 2D layers, can be made‐to‐order in certain metal–organic frameworks (MOFs) systems.…”

Functionalized Metal‐Organic Frameworks for Hg(II) and Cd(II) Capture: Progresses and Challenges

“…As an emerging porous solid, metal‐organic frameworks (MOFs) constructed from metal ions/clusters and organic ligands have drawn more and more attentions due to their wide application in various fields, such as gases adsorption and separation, small molecule detection, drug delivery, and catalytic conversion [13–23] . Since MOFs have suitable pores for various molecules and ions to enter, the introduction of specific active sites into their pores can be used to capture the corresponding molecules or ions.…”