Themed collection Emerging Trends in MOFs
Metal–organic frameworks in photocatalytic Z-scheme heterojunctions: an emerging technology
There is an urgent need for cleaner production processes for chemicals.
Electrical bistability based on metal–organic frameworks
In this feature article, we focus on recent progress on MOF-based memristors and their switching mechanisms. In addition, challenges as well as future perspectives are discussed.
Propagating MOF flexibility at the macroscale: the case of MOF-based mechanical actuators
Flexible Metal–Organic Framework (MOF) composites can be designed to develop shapeshifting materials in which the propagation of the dynamic behavior of flexible MOFs from the nano- or mesoscale to the macroscale results into useful mechanical work.
Ionic metal–organic frameworks (iMOFs): progress and prospects as ionic functional materials
Summary of the design and synthesis of functional ionic metal–organic frameworks toward various energy and environmental applications.
Recent advances in the applications of porous organic cages
This mini-review summarises the recent advances in applications of porous organic cages, which derived from the unique features of this new sub-class of porous materials.
Porous metal–organic frameworks for hydrogen storage
This article reviews the recent progress in the use of metal–organic frameworks as solid absorbents for hydrogen storage, and their current challenges and future prospects.
Nanoparticle/metal–organic framework hybrid catalysts: elucidating the role of the MOF
This feature article highlights recent advances in hybrid catalysts of metal–organic frameworks (MOFs) and nanoparticles (NPs), focusing on the analysis of the interaction between NPs and MOFs and the reaction mechanisms.
Luminescent MOFs (LMOFs): recent advancement towards a greener WLED technology
Luminescent MOFs (LMOFs) have demonstrated promise as alternative phosphors for energy efficient and environment friendly WLED technology. In this feature article, we outline the recent advancement toward greener WLED technology using REE-free LMOFs.
Acetylenedicarboxylate as a linker in the engineering of coordination polymers and metal–organic frameworks: challenges and potential
Despite its simplicity as a short and rod-like linear linker, acetylenedicarboxylate has for a long time been somewhat overlooked in the engineering of coordination polymers and especially in the construction of metal–organic frameworks (MOFs).
Transformation of metal–organic frameworks with retained networks
The designed strategies for producing MOF-derived porous materials with preserved characters (framework skeletons, surface areas, porosity and properties) and improved stability are outlined.
Multi-functional metal–organic frameworks for detection and removal of water pollutions
This feature article reviews the recent achievements in metal–organic frameworks (MOFs) as versatile advanced materials for multifunctional water treatment and prospects the current challenges and the future research trends.
Hydrophobicity and dielectric properties across an isostructural family of MOFs: a duet or a duel?
Impedance spectroscopy measurements are combined with surface and pore hydrophobicity signatures to offer a new protocol for examining hydrophobic solids.
Phase control of ZIF-7 nanoparticles via mechanochemical synthesis
MOF crystal phase control is made possible through a mechanochemical process.
Solid-state synthesis of a MOF/polymer composite for hydrodeoxygenation of vanillin
Here we demonstrate the use of a solid-state method to introduce a furan-thiourea polymer into the pores of a MOF, Cr-BDC.
Multivariate zeolitic imidazolate frameworks with an inverting trend in flexibility
Modulative adsorption behaviour with an inverting stepped adsorption pressure is observed in a family of multivariate flexible frameworks.
Data-driven efficient synthetic exploration of anionic lanthanide-based metal–organic frameworks
The synthesis of lanthanide metal–organic frameworks with terephthalate (Ln-BDC-MOFs) was investigated using a data-driven approach.
Unravelling the synthesis of a rare-earth cluster-based metal–organic framework with spn topology
A novel rare-earth analogue of MOF-808 with 6-connected nodes is synthesized, shining light on the potential for open metal sites in rare-earth cluster-based MOFs.
Multi-layered ZIF-coated cells for the release of bioactive molecules in hostile environments
Living cells are coated with a multi-layered MOF biocomposite shell: the shell dissolution releases a biotherapeutic (antitrypsin) that provides artificial adaptability to protease-rich environments.
Photoactive carbon monoxide-releasing coordination polymer particles
The size tunable Mn-based coordination polymer particles demonstrate the controlled carbon monoxide release triggered by light irradiation.
Anionic or neutral? the charge of Ni8 cubes in metal–organic framework compounds
The cubic SBU Ni8X6L6 (X = OH−/H2O, L = ligand) in MOFs has so far been described as neutral in the literature. We investigated by detailed DRIFTS measurements and exchange reactions whether it shows anionic character, as observed in complexes.
Nitroxyl radical-containing flexible porous coordination polymer for controllable size-aelective aerobic oxidation of alcohols
A flexible TEMPO-PCP, whose pore conformation can be controlled through the choice of solvent, was developed as a size-selective catalyst for aerobic oxidation reactions.
Zr4+-terephthalate MOFs with 6-connected structures, highly efficient As(III/V) sorption and superhydrophobic properties
The utilization of terephthalate ligands with long alkyl chains resulted in the isolation of the first examples of Zr4+ terephthalate MOFs with 6-c frameworks, showing selective As(III/V) sorption and oil–water separation capability.
Photoresponsive proton conduction in Zr-based metal–organic frameworks using the photothermal effect
A new zirconium-based MOF [Zr2(H4TPPP)(OH/F)2]·xH2O (1) is reported showing a prominent photothermal effect over a wide spectral range and photo-enhanced and switchable proton conductivity.
Co-based metal–organic framework for photocatalytic hydrogen generation
Co-triazole MOF, obtained by facile hydrothermal synthesis, can be utilized as an efficient photo-driven catalyst in hydrogen production. The framework is highly robust and exhibits excellent activity, producing hydrogen of 9.32 mmol g−1 in 4 h.
Water vapour induced reversible switching between a 1-D coordination polymer and a 0-D aqua complex
The nonporous 1D coordination polymer [Zn(3-tba)2] (1β) undergoes water vapour-induced transformation to the 0D aqua complex [Zn(3-tba)2(H2O)2] (2). This phase transformation enables 1β to selectively adsorb water over alcohols under ambient conditions.
Photochromic and electrochromic properties of a viologen-based multifunctional Cd-MOF
A novel multifunctional Cd-MOF possessing photochromic and electrochromic properties was constructed.
A viologen-functionalized metal–organic framework for efficient CO2 photoreduction reaction
A viologen-functionalized metal–organic framework (MIL-125-RV2+) achieved CO2 reduction under visible light, which provided a strategy for the construction of novel CO2RR photocatalysts by combining color-tunable organics with framework materials.
Designed assembly of heterometallic zeolite-like framework materials from two different supertetrahedral metal clusters
By using two different supertetrahedral clusters as secondary building units, two new heterometallic zeolite-like frameworks were first made, demonstrating a feasible strategy for the synthesis of new functional framework materials.
Formaldehyde recognition through aminal formation in a luminescent metal–organic framework
Reticular synthesis of a pillar-layer metal–organic framework with a diamino-functionalized dicarboxylate as a pillar linker, realizing an exclusive luminescence response toward formaldehyde through aminal formation.
Modulation of proton conductivity in coordination polymer mixed glasses
Mixed glasses from two meltable coordination polymers show composition dependent glass transition temperatures and a mixed-glass former effect on proton conductivity.
Ethylene oxide functionalization enhances the ionic conductivity of a MOF
A synergistic approach, combining methods known to enhance solid-state conductivity, is applied here resulting in a true solid-state lithium conducting MOF system with ionic conductivity similar to reported MOF/Li salt/solvent electrolytes.
Green-light-responsive metal–organic frameworks for colorectal cancer treatment
A novel green-light-responsive nanoMOF with low toxicity was developed as a drug delivery system. Our material demonstrates photo-controlled degradation, drug release, and cancer cell cytotoxicity.
Exchange of coordinated carboxylates with azolates as a route to obtain a microporous zinc–azolate framework
A bistriazolate linker is exchanged for the carboxylate linker in Zn-MOF-74, tuning the coordination environment at the Zn(II) node and resulting in the novel NU-250 framework with hexagonal channels.
About this collection
Discoveries of novel functional materials have played key roles in the development and progression of scientific research and technologies that consequently benefit our everyday life. Amongst diverse materials, metal-organic frameworks (MOFs) have emerged recently as one of the most promising class of advanced functional materials that have grown and evolved through fascinating academic interest toward real-world applications at industrial scale to advance current technologies in various areas such as energy-efficient gas separation and storage, environmental pollutant remediation, heterogeneous catalysis, optoelectronics, drug delivery etc.
This collection, guest-edited by Sujit K. Ghosh (IISER, India), Ilich A. Ibarra Alvarado (UNAM, Mexico) and Jing Li (Rutgers University, USA), highlights the recent advancements in the fundamental research (with an emphasis on structure-property correlation studies) and potential applications of MOFs along with the emerging research topics which promise to take the field to a new high.