A5016682254- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Metal-Organic Frameworks: Synthesis and Applications
- Covalent Organic Framework Applications
- Crystallography and molecular interactions
- Magnetism in coordination complexes
- Supramolecular Chemistry and Complexes
- Lanthanide and Transition Metal Complexes
- Membrane Separation and Gas Transport
- Advanced Photocatalysis Techniques
- Polyoxometalates: Synthesis and Applications
- Molecular Sensors and Ion Detection
- Crystal structures of chemical compounds
- Luminescence and Fluorescent Materials
- Metal complexes synthesis and properties
- Carbon dioxide utilization in catalysis
- Supramolecular Self-Assembly in Materials
- Carbon Dioxide Capture Technologies
- Nanocluster Synthesis and Applications
- Advanced battery technologies research
- Catalytic Processes in Materials Science
- Advanced Nanomaterials in Catalysis
- Chemical Synthesis and Characterization
- Inorganic Fluorides and Related Compounds
- Zeolite Catalysis and Synthesis
University of Chinese Academy of Sciences
2006-2025
Fujian Institute of Research on the Structure of Matter
2016-2025
Chinese Academy of Sciences
2016-2025
Fuzhou University
2015-2025
State Key Laboratory of Structural Chemistry
2003-2025
Tan Kah Kee Innovation Laboratory
2021-2024
Fujian Normal University
2018-2024
State Council of the People's Republic of China
2021
University of Science and Technology of China
2020
Texas A&M University
2008-2015
Metal−organic frameworks (MOFs)—highly crystalline hybrid materials that combine metal ions with rigid organic ligands—have emerged as an important class of porous materials. The ligands add flexibility and diversity to the chemical structures functions these In this Account, we summarize our laboratory's experience in tuning topology functionality MOFs by ligand design.These investigations have led new interesting properties. By using a can adopt different symmetry conformations through...
A microporous metal-organic framework, PCN-14, based on an anthracene derivative, 5,5'-(9,10-anthracenediyl)di-isophthalate (H4adip), was synthesized under solvothermal reaction conditions. X-ray single crystal analysis revealed that PCN-14 consists of nanoscopic cages suitable for gas storage. N2-adsorption studies at 77 K reveal a Langmuir surface area 2176 m2/g and pore volume 0.87 cm3/g. Methane adsorption 290 35 bar show exhibits absolute methane-adsorption capacity 230 v/v, 28% higher...
Holding gas: One of the isoreticular metal–organic frameworks (MOFs) that have been synthesized and characterized structurally, PCN-68 (see structure), has a Langmuir surface area as high 6033 m2 g−1. The MOFs also display excellent gas (H2, CH4, CO2) adsorption capacity. Detailed facts importance to specialist readers are published ”Supporting Information”. Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted by authors. Please note: publisher is...
The targeted synthesis of 3D COFs has been considered challenging, especially adopting new topologies and bearing photoelectric units. Herein, for the first time, we report characterization a novel pyrene-based COF (3D-Py-COF), by selectively choosing geometry precursors connection patterns. Based on X-ray diffraction measurement detailed simulations, 3D-Py-COF is proposed to adopt two-fold interpenetrated pts topology, which never reported before. In addition, narrow pore size distribution...
We report a 2D layered metal–organic framework (MOF) with wide channels named NUS-1 and its activated analogue NUS-1a composed of Zn4O-like secondary building units tetraphenylethene (TPE)-based ligand 4,4′-(2,2-diphenylethene-1,1-diyl)dibenzoic acid. Due to special structure, exhibits unprecedented gas sorption behavior, glass-transition-like phase transition under cryogenic conditions, responsive turn-on fluorescence various volatile organic compounds. Our approach using angular containing...
Enzymatic catalytic processes possess great potential in chemical manufacturing, including pharmaceuticals, fuel production and food processing. However, the engineering of enzymes is severely hampered due to their low operational stability difficulty reuse. Here, we develop a series stable metal-organic frameworks with rationally designed ultra-large mesoporous cages as single-molecule traps (SMTs) for enzyme encapsulation. With high concentration SMTs, PCN-333(Al) encapsulates three...
Two water-stable covalent organic frameworks (COFs) named NUS-2 and NUS-3 having two-dimensional (2D) layered structures with different pore sizes were synthesized. These COFs exfoliated into nanosheets even monolayers high aspect ratio. They subsequently blended commercial polymers poly(ether imide) (Ultem) or polybenzimidazole (PBI) mixed matrix membranes (MMMs) exhibiting highly homogeneous textures due to the excellent compatibility between COF fillers polymer matrixes. Thanks selective...
Highly stable porous polymer networks (PPNs) are synthesized through Yamamoto homocoupling reaction between tetrahedral monomers. Among those polymers, PPN-4 shows exceptionally high Langmuir surface area of 10063 m2 g−1 (SABET: 6461 g−1). It also exhibits ultra-high hydrogen (158 mg g−1), methane (389 and carbon dioxide (2121 g−1) storage capacities. These properties make it a perfect adsorbent for clean energy applications.
Gas guzzler: The introduction of polyamines in porous polymer networks results significant enhancement CO2-uptake capacities at low pressures. best substituted network was found to exhibit high adsorption enthalpies for CO2 and the largest selectivity (see graph) any material reported date. It also had outstanding physicochemical stability could be regenerated under mild conditions. Detailed facts importance specialist readers are published as ”Supporting Information”. Such documents...
Three porous polymer networks (PPNs) have been synthesized by the homocoupling of tetrahedral monomers. Like other hyper-cross-linked networks, these materials are insoluble in conventional solvents and exhibit high thermal chemical stability. Their porosity was confirmed N2 sorption isotherms at 77 K. One materials, PPN-3, has a Langmuir surface area 5323 m2 g−1. clean energy applications, especially H2, CH4, CO2 storage, as well CO2/CH4 separation, carefully investigated. Although PPN-1...
A porous polymer network (PPN) grafted with sulfonic acid (PPN-6-SO3H) and its lithium salt (PPN-6-SO3Li) exhibit significant increases in isosteric heats of CO2 adsorption CO2-uptake capacities. IAST calculations using single-component-isotherm data a 15/85 CO2/N2 ratio at 295 K 1 bar revealed that the sulfonate-grafted PPN-6 networks show exceptionally high selectivity for over N2 (155 414 PPN-6-SO3H PPN-6-SO3Li, respectively). Since these PPNs also possess ultrahigh physicochemical...
A metal–organic framework (MOF) for reversible alteration of guest molecule adsorption, here carbon dioxide, upon photochemical or thermal treatment has been discovered. An azobenzene functional group, which can switch its conformation light irradiation heat treatment, introduced to the organic linker a MOF. The resulting MOF adsorbs different amount CO2 after UV treatment. This remarkable stimuli-responsive adsorption effect demonstrated through experiments.
Hydrogen storage in metal–organic frameworks (MOFs), or porous coordination polymers, has been extensively investigated the last two years and this review is to serve as an up date account of recent progress. The effects MOF sample preparation activation, functionalization (including post-synthetic), catenation, unsaturated metal sites, doping spillover have discussed using examples. In addition a condensed reference table all recently reported MOFs for hydrogen storage, future directions...
Solar energy-driven conversion of CO2 into fuels with H2 O as a sacrificial agent is challenging research field in photosynthesis. Herein, series crystalline porphyrin-tetrathiafulvalene covalent organic frameworks (COFs) are synthesized and used photocatalysts for reducing O, the absence additional photosensitizer, agents, noble metal co-catalysts. The effective photogenerated electrons transfer from tetrathiafulvalene to porphyrin by bonding, resulting separated holes, respectively,...
The theoretical and experimental hydrogen storage studies on metal–organic frameworks (MOFs) have been reviewed. Seven distinct factors influencing uptake capacity in MOFs classified discussed. Based existing studies, some possible future developments proposed.
Adsorptive separation of acetylene (C2H2) from carbon dioxide (CO2) promises a practical way to produce high-purity C2H2 required for industrial applications. However, challenges exist in the pore environment engineering porous materials recognize two molecules due their similar molecular sizes and physical properties. Herein, we report strategy optimize environments multivariate metal-organic frameworks (MOFs) efficient C2H2/CO2 by tuning metal components, functionalized linkers, terminal...
Porous coordination nanocages covered with alkyne groups are synthesized through judicious selection of the ligand and reaction conditions. The surface functionalization via click azide-terminated polyethylene glycol turns them into water-stable colloids, which exhibit controlled release an anticancer drug 5-fluorouracil.
Realization of ideal molecular sieves, in which the larger gas molecules are completely blocked without sacrificing high adsorption capacities preferred smaller molecules, can significantly reduce energy costs for separation and purification thus facilitate a possible technological transformation from traditional energy-intensive cryogenic distillation to energy-efficient, adsorbent-based future. Although extensive research endeavors pursued target sieves among diverse porous materials, over...
Considering the rapid increase of CO2 emission, especially from power plants, there is a constant need for materials which can effectively eliminate post-combustion (the main component: CO2/N2 = 15/85). Here, we show design and synthesis Cu(II) metal-organic framework (FJI-H14) with high density active sites, displays unusual acid base stability volumetric uptake (171 cm3 cm-3) under ambient conditions (298 K, 1 atm), making it potential adsorbing agent CO2. Moreover, simulated flue gas be...
Reactions between two novel hexatopic carboxylate ligands and copper salts give rise to isostructural metal-organic frameworks (MOFs) with a (3,24)-connected network topology containing both micro- mesocavities sizes of up 3 nm. Both retain their porosity after guest-molecule removal, leading high surface areas. Constructing MOFs microwindows may serve as general approach toward stable
Open and close: Inspired by close-packing of spheres, to strengthen the framework–H2 interaction in MOFs (metal-organic frameworks), a strategy is devised increase number nearest neighboring open metal sites each H2-hosting cage, align toward H2 molecules. Two MOF polymorphs were made, one exhibiting record high hydrogen uptake 3.0 wt % at 1 bar 77 K. Supporting information for this article available on WWW under http://www.wiley-vch.de/contents/jc_2002/2008/z802087_s.pdf or from author....
It is challenging to introduce pendent sulfonic acid groups into modularly built crystalline porous frameworks for intrinsic proton conduction. Herein, we report the mechanoassisted synthesis of two sulfonated covalent organic (COFs) possessing one-dimensional nanoporous channels decorated with groups. These COFs exhibit high conductivity as 3.96 × 10(-2) S cm(-1) long-term stability at ambient temperature and 97% relative humidity (RH). In addition, they were blended nonconductive...