106 results about "Porous Coordination Polymers" patented technology

The invention discloses a solventless synthesis method for a metal polynitrogen azole framework material and belongs to the preparation field of porous coordination polymers. The synthesis method of the invention mainly comprises the following steps: uniformly mixing a polynitrogen azole ligand and a metal oxide or metal hydroxide in a stoichiometric ratio of the target metal polynitrogen azole framework material, heating, and reacting to obtain the required metal polynitrogen azole framework material. In the synthesis method, the need of adding solvent and other additives are avoided, the process steps are simplified, the product yield is very high, the reaction byproduct or waste liquid treatment problem is eliminated, and vapor is the only byproduct and does not affect subsequent reactions; the purity of the obtained metal polynitrogen azole framework material is high, the crystallizing property is excellent, the crystalform is controllable and the specific surface area is very high; and the metal polynitrogen azole framework material can be used for absorption storage, separation and the like. The synthesis method has no requirement on the size of the reactor and can be used in production at various scales.

Zn metal-organic framework (ZnMOF) materials are described that selectively and reversibly binding oxygen and can be used in methods for removing oxygen from a fluid stream containing at least oxygen and one other component. Also described are methods for preparing these ZnMOFs.

The invention discloses application of a sulfydryl silver cluster coordination polymer in organic solvent detection, and belongs to the cross field of nanometer materials and coordination chemistry. The polymer is a silver/sulfur cluster-based porous coordination polymer with the 12-core silver/sulfur cluster as the node and bridged with a bi-toothed organic ligand. The chemical formula of the compound is [(Ag12(SBu(i)t(/i))8(CF3COO)4(bpy)4)](i)n(/i). The material has amphiphilic ducts and has high capacity for adsorbing small solvent molecules. The solvent molecules in the ducts interact with the ligand to affect the excited state energy level of the material, so that the fluorescent performance of the material changes in different polar solvents. Excellent linear relation exists between the solvent polarity and the fluorescence maximum emission peak wavelength of the material. Therefore, organic solvents can be recognized and detected according to fluorescence spectra. The silver/sulfur cluster-based porous coordination polymer has the advantages of being free of invasion and high in sensitivity and safety and has good application prospects in organic solvent recognition and detection.

The invention discloses a preparation method of a coating type MOFs/organic composite diaphragm. Metal organic frameworks (MOFs) are also called as porous coordination polymers; metal ions or metal clusters and corresponding organic ligands are connected and assembled through strong coordination bonds, so that the coordination polymers can be formed. The MOFs prepared by the method directly coat the surface of a polyolefin (polypropylene PP, polyethylene PE and the like) diaphragm. Compared with an organic diaphragm, the MOFs/organic composite diaphragm has good electrolyte wettability, high-temperature stability, higher discharge capacity and better cycling stability. It is proved that the MOFs/organic composite diaphragm is a promising battery diaphragm material. With the preparation method adopted, a new way is provided for improving the safety of a lithium ion battery.

The invention discloses a sodalite porous coordination polymer material as well as a preparation method and application thereof. The sodalite porous coordination polymer material has a chemical formula of [Zn(mtz)2-x(mim)x] infinity (0<=x<2), wherein mtz is a deprotoned 3-methyl-1,2,4-triazole anion, and mim is a deprotoned 2-methylimidazole anion. The polymer material is crystallized in a cubic system and in an I-43m space group, the length of an alpha axis is 1.70 nm, the divalent zinc ion is quadridentate, mim is bidentate, and mtz is bidentate; and a nitrogen atom is not coordinated. The sodalite porous coordination polymer material has a sodalite three-dimensional coordination network structure and a cesium chloride three-dimensional pore canal with a pore ratio of 50%, and has good thermal stability and chemical stability; and the Langmuir specific surface is greater than 1800 m<2>/g, and various gases and vapor can be absorbed effectively. The sodalite porous coordination polymer material can be used for storing, separating, catalyzing and sensing materials, performing molecular recognition and heat exchange, and the like on materials by absorbing guest molecules.

The present invention provides a complex in which metal nanoparticles are included in a porous coordination polymer (PCP), wherein the PCP is configured from a metal ion and an organic ligand.

The invention belongs to the field of material preparation, and mainly relates to lanthanum-series porous coordination polymers based on C2v symmetrical ligands, and a synthesis method and an application thereof. A series of fluorescent porous coordination polymers based on the C2v symmetrical ligands with gradually increased conjugacy are designed and synthesized, and the synthesis method is simple, convenient and easy to implement. The prepared novel lanthanum-series porous coordination polymers have good fluorescent properties; by adjusting the ligands and lanthanide elements, chrominance between pink and blue light can be adjusted; based on relatively high quenching coefficient, the polymers can be used for molecular recognition. Single crystal X-ray diffraction reveals that the pore size and the pore volume are controlled by the system, and the prepared porous coordination polymers have potential applications in highly-effective adsorption and release of iodine.

The invention discloses a rare earth luminescence catalyst. The rare earth luminescence catalyst is porous coordination polymer nanoparticles capable of realizing catalysis and luminescence indication of the hydrogen peroxide reaction progress, and is prepared through a solvothermal reaction of rare earth terbium ions, copper ions and ligand molecules, wherein the ligand molecules are m-phthalic acid. The invention also discloses a preparation method of the rare earth luminescence catalyst, and applications of the rare earth luminescence catalyst in catalysis of a reaction of hydrogen peroxide and ascorbic acid, in displaying of the reaction progress and in determination of the concentration of hydrogen peroxide or ascorbic acid. The rare earth luminescence catalyst has an excellent catalysis effect on the hydrogen peroxide reaction, and also can realize luminescence indication of the reaction progress, so the rare earth luminescence catalyst is a reaction catalyst and also is a reaction indicator. The rare earth luminescence catalyst provides a simple and rapid analysis method for catalysis of the hydrogen peroxide reaction and determination of the concentration of hydrogen peroxide or ascorbic acid.

The invention discloses a luminous porous coordination polymer as well as a preparation method and application thereof. The polymer disclosed by the invention has the chemical formula of [Cd2(tba)3Cl], wherein tba-1 refers to anion of a ligand 4-(1,2,4-1H-triazole) benzoic acid. The crystal structure of the polymer refers to an orthorhombic system, namely, a Pnma space group and has a one-dimensional channel formed by bridging the tba-1 main ligand and chloride ion auxiliary ligand with cadmium ions, and the hole ratio of the three-dimensional frame structure is 37.5 percent. The polymer is prepared by adopting a solvothermal method. The polymer can be used for a fluorescence probe for identifying different aromatic molecules and particularly serves as a molecular fluorescent probe for identifying N,N-dimethylaniline from the aromatic molecules. The preparation process disclosed by the invention is simple and easy to implement, the crystal purity and yield of the product are high, the detection method is simple, the selectivity is high, and the polymer has good prospects in the aspect of serving as a fluorescence probe and a solid luminous material.

An object of the present invention is to provide a novel porous coordination polymer having superhydrophobicity. The present invention relates to a porous coordination polymer comprising:

• • a divalent or trivalent metal ion; and
  • an organic ligand represented by the following formula (1) :

The invention discloses a mesoporous alumina ceramic coated diaphragm and a preparation method thereof, and belongs to the technical field of diaphragms for lithium ion batteries. The mesoporous alumina ceramic coated diaphragm comprises a commercially available diaphragm and mesoporous alumina coated on one side or two sides of the commercially available diaphragm, wherein the mesoporous aluminais generated by carrying out heat treatment on an Al-based MOFs porous coordination polymer material, and the Al-based MOFs porous coordination polymer material is at least one of NH2-MIL-53 (Al), NH2-MIL-101 (Al) and Al-PCP. According to the invention, the liquid absorption capacity and the liquid retention capacity of the mesoporous alumina ceramic coated diaphragm are improved, and the electrical property of the lithium ion battery can be obviously improved when the mesoporous alumina ceramic coated diaphragm is applied to the lithium ion battery.

The invention discloses a method for producing a hierarchically structured porous coordination polymer absorbent material, which comprises three steps of 1, dissolving aromatic carboxylic acid in an alkaline solution of 60 to 90 DEG C; 2, preparing a brine solution with metal ions; and 3, slowly adding the solution obtained in step 1 into the solution obtained in step 2, continuously reacting for1 to 8 hours, suction filtering and drying after washing the mixed solution by water and then obtaining the hierarchically structured porous coordination polymer absorbent material. The coordination polymer absorbent material has mesoporous and macropores at the same time; and the aperture is 2 to 150 nanometers. The mesoporous/macropore coordination polymer absorbent material produced by the method has well application prospect in the areas of environment pollution, chromatograph, catalysis and the like; the product is dried at a high temperature of 120 to 160 DEG C and has a relatively highheat stability. The production method is good for the environment, simple and easy for implementation and low in cost.

The invention relates to a method for improving catalytic selectivity of a metal nanoparticle/porous coordination polymer composite catalyst and application thereof. A passivator with the size larger than the hole diameter of porous coordination polymer is utilized to passivate metal nanoparticles compounded on the outer surface of the porous coordination polymer to reduce or inhibit catalytic activity thereof; meanwhile, catalytic activity of the metal nanoparticles in hole channels of the porous coordination polymer is kept; thus, the catalytic selectivity of the metal nanoparticle/porous coordination polymer composite catalyst is improved. A poisoningpassivating effect of the passivator to a metal catalyst is utilized, and a trace of reagents of quinoline, mercaptan and the like are introduced into a catalytic reaction system to passivate a part of metal nanoparticles being unfavorable for selective catalyst in the composite catalyst. When the method is applied to catalytic hydrogenation reaction of olefin, molecular dimension selectivity or chemical reaction locus selectivity can be effectively improved. The method is simple, easy and practicable and provides a novel design idea for further improving the catalytic selectivity of the composite catalyst.

The invention belongs to the technical field of synthesis of functional porous coordination polymer materials, and particularly relates to an iron ion fluorescent probe porous material and a preparation method thereof. According to the method, 2-(4-carboxyphenoxy) terephthalic acid serves as an organic raw material and is subjected to a solvothermal reaction with cadmium metal salt, and a novel porous coordination polymer material with the fluorescence property and the iron ion fluorescent probe function is obtained through a ternary mixed solvent system. The material has the advantages of being good in dissolubility, high in thermal stability, high in yield, high in purity, high in crystalline quality and the like.

The invention relates to an imidazolium salt-based porous coordination polymer ionic catalyst, a preparation method thereof, and an application of the catalyst in catalysis of a cycloaddition esterification reaction of carbon dioxide and olefin epoxide under normal pressure. The ionic catalyst comprises an imidazole/imidazolium salt functionalized terephthalic acid anion and a six-zirconium metal oxygen cluster, and is prepared through a solvothermal technology and an after-modification technology. The catalyst is simple to prepare, can highly-actively and highly-selectively catalyze the esterification reaction of chloropropylene oxide and other olefin epoxides, can be simply separated from products, and can be recycled multiple times.

The invention discloses a high-performance copper azide composite initiating explosive and a preparation method thereof, and belongs to the crossing field of nano-chemistry and energetic materials. Firstly, a novel copper-sulfur cluster-based porous coordination polymer (Cu12bpy for short) is prepared, and the chemical formula of the compound is [Cu12(StBu)9(CF3COO)3(bpy)4]n. Then, Cu12bpy is usedas a precursor to prepare a copper azide-heteroatom co-doped porous carbon material (CA-HPCH for short); and the CA-HPCH has a high copper azide content (89.43%), excellent ignition capacity (H50>=60cm) and low electrostatic sensitivity (E50=1.1 mJ), and is superior to common copper azide in performance. The micro initiating device made of CA-HPCH has short ignition time (7.0[mu]s) and low ignition energy (0.106 mJ), the performance of the composite initiating explosive exceeds that of most reported initiating explosives, and a basis is provided for further designing and synthesizing a high-performance initiating explosive.

The invention discloses a zirconium metal coordination polymer and a synthesis method thereof and application thereof for catalyzing ethylene polymerization, and belongs to the technical field of porous coordination polymer materials. The method comprises the following steps: adding sodium hydride to an organic solution of a ligand at room temperature under the protection of nitrogen, reacting for 6-12 hours to prepare reaction liquid; adding a tetrahydrofuran adduct of zirconium tetrachloride to the reaction liquid, and carrying out reflux reaction for 2-3 days; carrying out drip washing respectively by using tetrahydrofuran, methylene dichloride and methylbenzene; drying in vacuum, so as to obtain the porous zirconium metal coordination polymer. The porous zirconium metal coordination polymer disclosed by the invention is taken as a catalyst and has good catalytic activity when used for catalyzing ethylene polymerization under the support of aluminum alkyl and boron cocatalysts, and the obtained polyethylene product has the characteristics of high molecular weight, wide molecular weight distribution, granular nanoscale and the like.

The invention discloses a preparation method of an RHO zeolite type 2-ethylimidazole zinc porous material and an application of the material in gas chromatography. The porous coordination polymer provided by the invention has the structural formula of RHO-[Zn(eim)2] (the code number is MAF-6), wherein eim represents anions with removal of protons in organic ligand 2-ethylimidazole (Heim), and RHO represents a topological structure with RHO zeolite. The preparation method disclosed by the invention has the advantages that the traditional fast-mixing acid-alkaline neutralization reaction is improved; the parameters such as the reactant concentration, the used amount of a template agent and the reaction time are optimized, and especially the feeding sequence, i.e., different concentration proportions of the reactants when a reaction system is started is changed, so that finally MAF-6 with larger amount and high quality is prepared; the obtained sample has good thermal stability and chemical stability, the porosity is 55.4%, and the Langmuir specific surface is larger than 1650m<2>g<-1>. The porous material MAF-6 can be used for preparing a capillary column, has good gas chromatographic separation capability and reproducibility and better thermal/chemical stability, and can be used for separating and detecting organic compounds with similar boiling points or sizes.

The invention relates to an organic porous material after-supported single cyclopentadienyl chromium catalyst and an application thereof and belongs to the technical field of organic porous coordination polymer materials. The structure expression of the organic porous material after-supported single cyclopentadienyl chromium catalyst is shown in the description. The organic porous material after-supported single cyclopentadienyl chromium catalyst is used as a main catalyst, alkyl aluminum or alkyl aluminum halide or a mixture of alkyl aluminum and alkyl aluminum halide is used as an auxiliary catalyst, and the organic porous material after-supported single cyclopentadienyl chromium catalyst can be used for catalyzing olefin polymerization. The catalyst provided by the invention is good in stability, high in catalytic activity, low in cost and particularly suitable for the preparation of high-molecular weight polyethylene.

The invention belongs to the technical field of storage and transportation of a new energy source namely hydrogen energy, and in particular relates to an ammonia borane composite hydrogen storage material and a preparation method thereof. The ammonia borane composite hydrogen storage material is prepared by loading ammonia borane into a porous coordination polymer by adopting an impregnation method. The composite material disclosed by the invention reduces the thermal decomposition hydrogen release temperature of ammonia borane, accelerates hydrogen release kinetics, avoids generation of volatile byproducts, solves technical obstacles for taking ammonia borane as a hydrogen source material, and provides probability of applying a hydrogen energy source to vehicles and industries. Meanwhile, the preparation method is simple and feasible, low in cost and good in effect.

A film, and a light-emitting device (e.g., an OLED) incorporating the film as an emission layer, have luminescent emitters that are maintained in a desired orientation by incorporating them into a crystalline framework material, such as a metal-organic framework (MOF), covalent organic framework (COF), or porous coordination polymer. The crystal structure in the film has at least one crystallographic axis that is aligned substantially parallel to the planar surface of the film and/or the planar surface of a device substrate on which the film is deposited or grown. The luminescent emitters are held and oriented in the unit cells of the crystalline framework material such that their transition dipoles are substantially parallel to the crystallographic axis, which is in turn substantially parallel to the surface of the film or emission layer of the device through which light is emitted, resulting in improved outcoupling of light.

The invention discloses a porous coordination polymer, a preparation method and application thereof, and belongs to inorganic materials. The preparation of the porous coordination polymer having an integration property is realized by the introduction of an alkyl group or the strategy of changing the position of the alkyl group. A prepared skeleton has a three-dimensional pore passage, and excellent water stability, thermal stability and acid-base stability. A breakthrough in the mixed gas based on the material indicates that the porous coordination polymer shows excellent methane/ethylene or methane/ethane selective separation capacity at room temperature. The polymer is expected to be used for the separation and purification of CH4 from natural gas, biogas, oil field gas and coal mine gallery gas, and can also be used for the purification of CH4 in a mixture of carbon dioxide, carbon monoxide, ethylene and the like.