Materials Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 8(19), P. 3150 - 3156
Published: Jan. 1, 2024
A new strategy for separating toluene (Tol) and methylcyclohexane (MCH) in both vapor liquid phases has been developed using nonporous adaptive crystals of hybrid[3]arene H (Hα).
Language: Английский
Advanced Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 28, 2025
Abstract Flexible metal–organic frameworks (MOFs) offer unique opportunities due to their dynamic structural adaptability. This review explores the impact of flexibility on gas adsorption, highlighting key concepts for storage and separation. Specific examples demonstrate principal effectiveness flexible in enhancing uptake working capacity. Additionally, mixed adsorption separation mixtures are reviewed, showcasing potential selective The also discusses critical role single isotherms analysis conditions designing experiments. Advanced combined characterization techniques crucial understanding behavior MOFs, including monitoring phase transitions, framework–guest guest–guest interactions. Key challenges practical application adsorbents addressed, such as kinetics switching, volume change, crystal damage during transitions. Furthermore, effects additives shaping “slipping off effect” discussed. Finally, benefits transitions beyond improved capacity selectivity outlined, with a particular focus advantages intrinsic thermal management. highlights using MOFs technologies, offering insights future research application.
Language: Английский
Citations
8
Langmuir, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 29, 2025
In this study, a Pd nanoparticles@hydrogen-bonded organic framework (Pd NPs@HOF) thin film was fabricated at the toluene-water interface. The HOF formed through interaction of trimesic acid (TMA) and melamine (Mel) in water phase, while Pd(0) produced from reduction [PdCl2(cod)] phase. as-synthesized NPs@HOF demonstrated to be an effective catalyst for selective p-nitrophenol o-nitrophenol p-aminophenol o-aminophenol. porous network introduced strong active sites between Mel, TMA, Pd(0). Kinetic studies showed that exhibited enhanced rate comparison with Pd@reduced-graphene oxide (r-GO) rates were 1.7 times faster 1.5 or even 10 than some Pd-based catalysts, maximum conversion 97.1% which attributed higher porosity greater surface-to-volume ratio material. Furthermore, π-π stacking interactions enhance catalytic activity by increasing sites, stabilizing NPs trapping nitrophenols, facilitating electron transfer, providing synergistic effect. Also, contributions hydrogen bonding, van der Waals forces, electrostatic interactions, π-σ noncovalent are reasons better performance Pd/r-GO reduced functional groups.
Language: Английский
Citations
3
Microchemical Journal, Journal Year: 2025, Volume and Issue: unknown, P. 112897 - 112897
Published: Jan. 1, 2025
Language: Английский
Citations
2
Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 13, 2025
Diamagnetic metal sulfonates have been widely reported, while paramagnetic species are very rare, especially those that exhibit interesting magnetic and/or proton conduction properties. Herein, we report the synthesis, structure, magnetic, and proton-conducting properties of a hydrogen-bonded cobalt(II) organosulfonate complex. The coordination self-assembly CoII salts 8-quinolinesulfonic acid ligands affords mononuclear sulfonate featuring both coordinated noncoordinated sulfonic O atoms axial water molecules. Notably, units further connected by short S–O···H–O hydrogen-bonding interactions between SO3– H2O, leading to three-dimensional (3D) network. This exhibits superior thermal stability, as proved variable-temperature single-crystal powder X-ray diffraction thermogravimetric analysis (TGA) analysis. Variable-temperature variable humidity ac impedance spectroscopy indicated this cobalt is good superionic conductor with highest measured conductivity 1.5 × 10–3 S cm–1 at 90 °C under 97% relative humility, originating from 1D zigzag chains. In addition, field-induced slow relaxation was observed via dynamic susceptibility measurements. These results show not only first Co(II) single-ion magnet but also ″magnetic anisotropic ion-organosulfonate-coordinated water″ approach for design preparation bifunctional metalo-hydrogen-bonded organic framework (MHOF) materials.
Language: Английский
Citations
2
Separation and Purification Technology, Journal Year: 2024, Volume and Issue: unknown, P. 130195 - 130195
Published: Oct. 1, 2024
Language: Английский
Citations
8
Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 354, P. 129401 - 129401
Published: Aug. 30, 2024
Language: Английский
Citations
4
Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 2, 2025
Exploring host-guest interactions to regulate hydrogen-bonding assembly offers a promising approach for developing advanced porous crystal materials (PCMs). However, screening compatible guests with appropriate geometries and that could inhibit the dense packing of building blocks remains primary challenge. This study presents novel guest-induced crystallization (GIC) strategy, guided by thermodynamic calculations, develop hydrogen-bonded organic frameworks (HOFs) using structurally challenging tetrazole units. Thermodynamic principles are established from structure data density functional theory calculation formation energy (ΔE). provides criteria identify available in GIC, enabling successful discovery hidden HOF is kinetically crystallize. Furthermore, potential application p-xylene (PX) separation predicted analyzing ΔE HOFs. A high PX selectivity (PX/m-xylene=6.1, PX/o-xylene=7.2, PX/ethylbenzene=4.1) achieved through selective inclusion C8 aromatic isomers within Significantly, guest-free (HOF-PX-a), bearing PX-templated cavities derived molecular imprinting, shows record-high PX/ethylbenzene (21.7) liquid adsorption. work elucidates underpinning self-assembly rules GIC construction, providing exciting new opportunities predictable PCMs recognition target-specific separations.
Language: Английский
Citations
0
Chemical Communications, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
1,3,5-Tri(4-carboxyphenyl)benzene was first crystallized as a non-interpenetrated hydrogen-bonded organic framework. The desolvated structure can maintain the and mesoporous skeleton which is stable for molecule adsorption.
Language: Английский
Citations
0
Science China Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 2, 2025
Language: Английский
Citations
0
Science China Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 7, 2025
Language: Английский
Citations
0