MOFs for long-term gas storage: exploiting kinetic trapping in ZIF-8 for on-demand and stimuli-controlled gas release

Abstract

In this study, we investigate the potential of metal-organic frameworks (MOFs) for long-term gas storage at ambient conditions. Specifically, we selected a MOF ZIF-8 (with a 0.34 nm large pore...

ZIF-8 Vibrational Spectra: Peak Assignments and Defect Signals

“…1−6 Zeolitic imidazolate frameworks (ZIFs) are a subclass of MOFs, and ZIF-8 is a prototypical ZIF consisting of zinc cations tetrahedrally coordinated with 2-methylimidazole (2mIm) ligands to form an ordered structure with nm-sized porous cavities accessible through smaller pore windows. 7 It has been investigated in the form of powders, 8,9 films, 10−14 and in composites 15 made by solvothermal and vapor-phase approaches, 16−20 for applications ranging from gas 21 and hydrocarbon mixture purification, 22,23 and storage, 24,25 catalysis, 26 drug delivery, 27 and sensors. 28 Depending on the synthesis conditions and postsynthesis treatments, various types of defects can be introduced in ZIF-8, and its structure may deviate from the defect-free nominal crystallographic structure.…”

“…Metal–organic frameworks (MOFs) are porous materials composed of metal ions or metal-containing clusters linked by organic ligands that form three-dimensional networks with highly ordered pore structures. − Zeolitic imidazolate frameworks (ZIFs) are a subclass of MOFs, and ZIF-8 is a prototypical ZIF consisting of zinc cations tetrahedrally coordinated with 2-methylimidazole (2mIm) ligands to form an ordered structure with nm-sized porous cavities accessible through smaller pore windows . It has been investigated in the form of powders, , films, − and in composites made by solvothermal and vapor-phase approaches, − for applications ranging from gas and hydrocarbon mixture purification, , and storage, , catalysis, drug delivery, and sensors …”

Empowering the Water Oxidation Activity of the Bimetallic Metal–Organic Framework by Annexing Gold Nanoparticles over the Catalytic Surface

“…Sometimes, these MOFs are also coined as porous coordination polymers, where they have special properties like large surface area, high porosity, and structure. 14−17 Because of their unique properties, they are employed in numerous applications like gas separation, 18,19 gas storage, 20,21 sensing, 22,23 catalysis, 24,25 and drug administration. 26,27 Moreover, the MOF is used in various fields showing excellent performance in electrochemical applications such as energy conversion, 28,29 energy storage, 30,31 and electrocatalysis.…”

“…Metal–organic frameworks (MOFs) are one type of crystalline materials that are obtained when a metal or a group of metals called a cluster is coordinated with organic linkers. Sometimes, these MOFs are also coined as porous coordination polymers, where they have special properties like large surface area, high porosity, and structure. − Because of their unique properties, they are employed in numerous applications like gas separation, , gas storage, , sensing, , catalysis, , and drug administration. , Moreover, the MOF is used in various fields showing excellent performance in electrochemical applications such as energy conversion, , energy storage, , and electrocatalysis. , However, there are still many MOF-based materials that do not perform well as electrocatalysts because of their poor conductivity and chemical stability in alkaline and acidic electrolytes. − Many research communities are trying to develop new catalysts to achieve an excellent electrocatalytic performance. − In this way, a more active metal site in the porous catalysts at the interface between the electrode and electrolyte has a critical function in facilitating molecular adsorption, subsequent reactions, and desorption, leading to a high electrocatalytic performance (Scheme ).…”

Proton conduction of an ionic HOF with multiple water molecules and application as a membrane filler in direct methanol fuel cells

“…Crystalline protonic conductors [15][16][17] play a vital role in diverse electrochemical devices. At present, research on crystalline proton conducting materials mainly focuses on metal-organic frameworks (MOFs), [18][19][20][21][22] covalentorganic frameworks (COFs) [23][24][25][26][27] and hydrogen-bonded organic frameworks (HOFs). [28][29][30][31] As a class of hydrogen-bond-rich materials, HOFs should have great prospects as proton conductors and deserve to be explored.…”