3318 results about "Metal-organic framework" patented technology

The invention relates to the technical field of fluorescence sensing development, in particular to a Cd (II)-based metal organic framework crystalline material as well as a preparation method and application thereof. The chemical formula of the Cd (II)-based metal organic framework crystalline material is {[Cd3 (H2O) 2 (DMA) 2 (5-CMOIA) 2]. 6 / 5H2O} n, the organic framework material is characterized by an X-ray single crystal diffractometer, and the result shows that the organic framework material is crystallized in a triclinic system P-1 space group, the asymmetric unit of the organic framework material is composed of three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions and three The complex is composed of two deprotonated (5-CMOIA) 3-ligands, two coordinated DMA solvent molecules, two coordinated water molecules and six fifths of crystal water molecules. The solid fluorescence spectrum of the Cd (II)-based metal organic framework crystalline material is measured, the fluorescence response of the Cd (II)-based metal organic framework crystalline material to metal ions in a solution is explored, and the result shows that the Cd (II)-based metal organic framework crystalline material can effectively recognize Hg < 2 + > from different ions and can be applied to the field of fluorescence sensing.

The invention discloses a phosphonic acid-based metal organic framework solid electrolyte as well as a preparation method and application thereof, and belongs to the technical field of solid electrolyte materials. The method comprises the following steps: mixing a metal salt, an organic phosphonic acid ligand and an organic solvent, carrying out a coordination reaction, and treating to obtain MOF powder; heating and activating the MOF powder to obtain activated MOF powder; the method comprises the following steps: mechanically grinding lithium salt and MOF powder to form a mixture, heating to enable the molten lithium salt to permeate and fill MOF channels, and cooling to obtain solid electrolyte powder. The ionic conductivity of the solid electrolyte at 30 DEG C reaches 1.01 * 10 <-4 > S cm <-1 >, and the solid electrolyte is kept stable in a 4.4 V high-voltage window. The symmetrical battery based on the phosphonic acid-based MOF solid electrolyte can stably operate, and shows excellent compatibility and stability of the electrolyte and a lithium metal negative electrode. The method has the advantages of simple operation, cheap and easily available components, and is expected to be suitable for large-scale preparation.

Hydrogel comprises hydroxyapatite nanowires and a base material for forming the hydrogel, and further comprises glucose oxidase (GOx), gallic acid, magnesium ions (Mg < 2 + >) and the like, the gallic acid and the Mg < 2 + > form Mg-MOF, and the GOx is loaded on the Mg-MOF, so that the diabetes microenvironment of a bone defect part is locally adjusted, and bone defect repair is facilitated. Through verification, the sustained-release gallic acid of GOx-MOF participates in cascade reaction, GOx is removed to generate H2O2, the benefit is maximized, and the sustained-release gallic acid has good effects of controlling blood glucose, removing ROS, regulating inflammation and promoting osteogenesis and angiogenesis. The research is expected to play a role in microenvironment regulation of diabetes mellitus bone regeneration and minimally invasive treatment of bone defects.

The invention relates to the technical field of gas monitoring, and discloses an air quality monitoring method based on an olfactory chip, which comprises the following steps: step 1, preparing a multi-modal sensor system which comprises an olfactory chip module, a surface enhanced Raman scattering module and a microfluidic time division multiplexing module, the sensor surface of the olfaction chip module is modified with a metal organic framework material, and the substrate of the surface enhanced Raman scattering module is made of a core-shell structure nano material; and 2, synchronously collecting resistance response data of the olfaction chip module, spectral data of the surface enhanced Raman scattering module and temperature, humidity and wind speed data of the environment sensor. According to the invention, a multi-modal sensor cooperative detection technical scheme is adopted, the high-sensitivity detection effect on low-concentration harmful gas in air is achieved, and compared with a technical scheme of a single sensor and a fixed fusion algorithm in the prior art, the defect that accurate recognition of trace gas cannot be realized under ppb-level concentration is overcome.

The invention relates to an enzyme reagent, glucose electrochemical test paper and a preparation method thereof, and belongs to the technical field of electrochemical detection. The glucose electrochemical test paper comprises an electrode substrate and an enzyme reagent arranged on the electrode substrate, the enzyme reagent is prepared from the following components in parts by mass: 5 to 7 parts of buffer solution, 0.01 to 0.2 part of hexamine ruthenium trichloride, 0.01 to 0.1 part of quinone compound, 0.1 to 1.2 parts of metal organic framework immobilized glucose dehydrogenase and 0.2 to 0.8 part of film-forming agent. According to the glucose electrochemical test paper, the detection accuracy of glucose can be improved, and the problems of large interference, small linear range, insensitive detection and the like in the prior art are improved or solved.

The invention belongs to the technical field of adsorbent preparation, and relates to a preparation method of a series of M-TCBB metal organic framework materials and application of the M-TCBB metal organic framework materials to adsorption of sulfur dioxide and ammonia gas. The preparation method comprises the following steps: dispersing [9, 9 '-dicarbazole]-3, 3', 6, 6 '-tetracarboxylic acid (H4TCBB) serving as an organic ligand and any one or more of yttrium salt, zirconium salt, hafnium salt, cerium salt and thorium salt in a solution according to a certain mass ratio, and carrying out solvothermal reaction at 100-120 DEG C; and after the reaction is finished, centrifuging to take a precipitate, washing and drying to obtain a series of M-TCBB metal organic framework materials. The series of M-TCBB metal organic framework materials prepared by the invention have relatively good adsorption acting force on sulfur dioxide and ammonia gas, and are high in adsorption cycle stability; under a humid condition, capture of sulfur dioxide and ammonia gas shows a humidity enhancement characteristic, namely, water vapor promotes enhancement of the adsorption capacity of sulfur dioxide and ammonia gas.

The invention discloses an environment-friendly cementing material capable of efficiently adsorbing formaldehyde and a preparation method of the environment-friendly cementing material, and relates to the technical field of formaldehyde adsorption materials, and the environment-friendly cementing material is prepared from the following raw materials in parts by weight: 30-50 parts of activated carbon powder, 10-20 parts of diatomite powder, 8-10 parts of metal organic framework powder, 12-18 parts of a natural gelatinizing agent, 1-2 parts of a plasticizer and 2-4 parts of nano titanium dioxide. The activated carbon powder has an extremely high specific surface area and can effectively adsorb formaldehyde molecules in air. The porous structure of the diatomite powder increases the adsorption capacity of the material, and improves the formaldehyde removal efficiency. The metal organic framework powder has a unique pore structure and chemical properties, and can specifically adsorb formaldehyde and other volatile organic compounds (VOCs). The environment-friendly cementing material has the advantages of being efficient in formaldehyde adsorption, environment-friendly, durable, multifunctional, easy to process, economical, practical and the like, and is an ideal indoor air purification material.

The invention relates to the field of coatings, in particular to an industrial anticorrosive coating and a preparation method thereof. The coating comprises film-forming resin, a curing agent, a solvent and an anti-corrosion composite nanofiller. The anti-corrosion composite nanofiller has a three-layer structure, wherein an inner core is mesoporous silica loaded with an organic corrosion inhibitor; the middle shell layer is an amino-functionalized metal organic framework material grown in situ; and the outer layer is a low-surface-energy layer formed by modification of a hydrophobic modifier.

The invention discloses a preparation method and application of a carbon-loaded cobalt nanoparticle and iron monatomic electro-catalytic material, relates to a preparation and regulation method of a zinc air battery cathode catalyst, and solves the problems of low electricity generation performance and poor stability of an existing rechargeable zinc air battery cathode. Specifically, a high-efficiency and stable-catalysis carbon-loaded cobalt nanoparticle and iron monatomic electro-catalysis material is reasonably designed and successfully synthesized by utilizing the adsorption effect of a metal organic framework (MOFs) and polyvinylpyrrolidone as an ion adsorption layer, and under the condition that active sites are not sacrificed, the high-efficiency and stable-catalysis carbon-loaded cobalt nanoparticle and iron monatomic electro-catalysis material can be used for preparing a high-efficiency and stable-catalysis carbon-loaded cobalt nanoparticle / iron monatomic electro-catalysis material. And the dispersity of cobalt nanoparticles and the catalytic activity of iron monatomic are improved. The obtained material is used as a zinc air battery cathode material, the overall performance of a rechargeable zinc air battery can be improved, and efficient and oriented conversion of the zinc air battery is achieved.

The invention relates to the technical field of antibacterial and antifouling fabrics, provides a preparation method of an antibacterial and antifouling fabric, and solves the problem of poor fabric durability caused by single functional component and lack of physical protection in the prior art. The preparation method comprises the following steps: S1, preparing MOFs loaded antibacterial fibers: blending a metal organic framework antibacterial composite nanomaterial and a polymer matrix material, and carrying out melt spinning to prepare the MOFs loaded antibacterial fibers; s2, constructing a self-cleaning functional coating: dispersing the fluorinated nanoparticles and a polymer adhesive in a solvent to prepare a self-cleaning coating solution; s2, performing surface activation treatment on the MOFs-loaded antibacterial fiber obtained in the step S1, soaking the MOFs-loaded antibacterial fiber in the self-cleaning coating liquid, and performing pulling and curing to form a bionic micro-nano structure coating on the surface of the MOFs-loaded antibacterial fiber so as to obtain a functional composite fiber; s3, spinning forming: taking the functional composite fibers obtained in the step S2 as warp yarns and / or weft yarns, and weaving to obtain the antibacterial and antifouling fabric.

The invention discloses an electrochemical sensor constructed based on a composite material and a preparation method and application thereof.The electrochemical sensor comprises a screen-printed electrode, the surface of the reaction end of a working electrode of the screen-printed electrode is loaded with a zirconium-based metal organic framework composite material, the composite material comprises UiO-66, and the surface of the composite material is modified with a polydopamine coating. The preparation method comprises the following steps: preparing the zirconium-based metal organic framework composite material and fixing the composite material on the working electrode of the screen-printed electrode. According to the invention, the zirconium-based metal organic framework composite material with many adsorption sites, good dispersibility, good conductivity and good hydrophilicity is used as a functional material, so that the sensor has the advantages of simple operation, low cost, rapid response, strong anti-interference capability, wide detection linear range, high detection sensitivity, long service life and the like, and can be widely used for detecting Mn < 2 + >, Mn < 2 + >, Mn < 2 + >, Mn < 2 + > and Mn < 2 + > in a water body. The method can realize rapid and accurate detection of Mn < 2 + > in a water body, and is high in use value and good in application prospect.

The invention provides a metal organic sulfonic acid-based solid acid catalyst applied to nylon 6 recovery and depolymerization and a preparation method thereof, and realizes upgrading and recovery of waste nylon 6. The main contents are as follows: (1) a structural design and a preparation method of the metal organic framework sulfonic acid-based solid acid catalyst; and (2) the solid acid is used for catalytic depolymerization of nylon 6. The problems that equipment corrosion is aggravated by inorganic acid in the nylon 6 recovery process and a liquid-phase catalyst is difficult to separate and recover are solved, and the application prospect is good.

The invention discloses an MOF-CQD enzyme-sensitive FRET hydrogel diagnosis and treatment probe as well as a preparation method and application thereof, and belongs to the technical field of biomedical detection and treatment. The probe takes a carboxyl carbon quantum dot (CQD) as a donor and a metal organic framework (MOF) as an acceptor, and the donor and the acceptor are connected through a replaceable enzyme response polypeptide bridge; when the fluorescence is complete, FRET is generated to quench the CQD fluorescence, the FRET is interrupted after the target enzyme cuts off the peptide bridge, and the blue / red fluorescence ratio is changed to realize nanomole-level quantitative detection and has self-correction capability. The probe is packaged in a four-arm PEG transparent hydrogel which does not need a photoinitiator and can be quickly self-crosslinked, and can be prepared into a film, a tooth socket and the like for POCT (point-of-care testing) of parts such as an oral cavity / skin and the like. After detection, the MOF is activated by illumination of 630-660 nm to generate active singlet oxygen, so that local antibacterial or anti-tumor treatment is realized, and a diagnosis and treatment integrated scheme is constructed.

The invention belongs to the technical field of sound-absorbing materials, and particularly relates to a composite sound-absorbing material as well as a preparation method and application thereof. The composite sound-absorbing material comprises a foaming base material and sound-absorbing particles, the sound-absorbing particles are dispersed in the foaming base material; the foaming base material is a polyurethane material; the sound-absorbing particles comprise at least one of a metal organic framework compound, activated carbon, aerogel, carbon nanotubes and graphene. The sound-absorbing particles are dispersed in the foaming base material, so that obvious concave-convex structures are formed around foam holes of the sound-absorbing material, and the sound wave transmission resistance can be increased. Besides, the sound-absorbing particles with specific types, specific surface areas and pore diameters and porous structures are adopted, the number of internal pore channels is large, multi-angle collision of airflow in the pore channels can be enhanced, and the composite sound-absorbing material has a good sound-absorbing effect at low and medium frequencies.

A method for preparing modified iron(III) phosphate, comprising the following steps: (1) preparing NH2-MIL-53(Al) nanoparticles, mixing the nanoparticles with a solvent, adding an acid solution, and heating and stirring the mixture to obtain hollow NH2-MIL-53(Al) powder; (2) using the hollow NH2-MIL-53(Al) powder to prepare a dispersion, mixing the dispersion with an iron salt solution, stirring and then drying the mixture, mixing the resulting powder with a phosphorus source solution, controlling the pH, and carrying out a reaction; and (3) carrying out sintering treatment on a material resulting from aging to obtain the modified iron(III) phosphate. Provided are iron(III) phosphate prepared according to the method and a positive electrode material. In the method, a hollow metal organic framework nanomaterial is used as a template to provide a micro reaction area for the synthesis of iron(III) phosphate, so that the microscopic morphology of the prepared iron(III) phosphate is restrained and controlled to prepare nanoscale iron(III) phosphate having a polyhedral structure.

The invention relates to an MOF confinement ruthenium cluster catalyst for methanation of carbon dioxide as well as a preparation method and application of the MOF confinement ruthenium cluster catalyst. The catalyst comprises a carrier and an active component loaded on the carrier, the carrier comprises a metal organic framework containing hydroxyl; the metal organic framework comprises UiO-66 (UiO-66); the active component comprises metal ruthenium; the active component grows in a pore channel of the carrier and forms a metal cluster. The catalyst provided by the invention realizes 100% methane selectivity and 98.4% carbon dioxide (CO2) conversion rate under the conditions of 1 MPa and 220 DEG C, is almost close to thermodynamic limit equilibrium conversion rate (99.4%) and is superior to the currently reported Ru-based CO2 methanation catalyst, and the catalyst shows good catalytic activity and structural stability in the process of continuous reaction for 650 hours. The catalyst provided by the invention has the characteristics of simple preparation method, high metal dispersibility, mild reaction conditions, high conversion rate, good selectivity, excellent stability and the like.

The present invention relates to: an electrochemical biosensor capable of effectively and sensitively detecting alfuzosin; an electrode applied thereto; a metal-organic framework (MOF) which includes a zinc / cobalt oxide and is applied in manufacturing the electrode; and methods for manufacturing same.

The invention discloses a zirconium-based metal organic framework (Zr-MOF) composite semi-solid electrolyte material prepared based on an electrostatic spinning technology and application of the zirconium-based metal organic framework (Zr-MOF) composite semi-solid electrolyte material. The material is composed of a three-dimensional polymer fiber network, surface-coated Zr-MOF nanoparticles and an organic liquid electrolyte solution, a polymer matrix provides mechanical support, and Zr-MOF micropores and a liquid electrolyte form a multistage ion transmission channel. The preparation method comprises the processes of electrostatic spinning forming, in-situ Zr-MOF synthesis and gradient pressure electrolyte infiltration. The ionic conductivity of the material at 25 DEG C reaches 1.2 * 10 S / cm, the lithium ion transference number is 0.65, the capacity retention ratio after 500 cycles is greater than or equal to 90%, and the material is suitable for high-energy-density lithium ion batteries and flexible energy storage devices through acupuncture safety tests.

The invention relates to a fly ash-based MOFs adsorption-catalysis material integrated preparation method, and belongs to the field of solid waste treatment and resource utilization. The material takes industrial solid waste fly ash as a matrix, and is prepared by the following steps: firstly, carrying out alkali modification and silane coupling agent surface activation treatment on fly ash to form a high-activity matrix; then loading a metal organic framework (MOFs) on the surface of the activated fly ash through an in-situ synthesis process to form a porous composite carrier; the integrated material with CO2 adsorption and catalytic conversion functions is further prepared through impregnation of a copper-based active component and a high-temperature calcination process. According to the invention, the problems of high energy consumption, high cost and low comprehensive utilization rate of fly ash of the traditional CO2 capture and utilization technology (ICCU) are solved, high-valued resource utilization of industrial solid waste and efficient capture and conversion of CO2 are synchronously realized, and the method has dual values of environmental protection and economy.

The invention discloses an anti-corrosion fireproof coating applied to a new energy battery box and a preparation method, and relates to the technical field of industrial coatings, the anti-corrosion fireproof coating comprises the following specific components: a base resin system, a curing agent, a functional filler system, a flame retardant system, a solvent system and an auxiliary agent system; the anticorrosive and fireproof coating further comprises additives, wherein the additives specifically comprise a functionalized MXene loaded lithium ion adsorbent, a metal organic framework encapsulated quaternary phosphonium salt, polyaryletherketone coated antimony trioxide nano-particles and boron-nitrogen co-doped graphene aerogel powder; the material is prepared based on the materials. According to the invention, multiple additives are synergistically introduced into a traditional basic coating system, and on the basis of a basic flame-retardant and anti-corrosion structure, lithium ion directional adsorption, gas-phase free radical active intervention, high-temperature carbonization barrier construction and three-dimensional thermal barrier network configuration are further realized; therefore, the multi-dimensional safety performance of the coating in battery thermal runaway, salt spray corrosion and high-temperature impact environments is remarkably improved.

The invention belongs to the technical field of preparation of photocatalyst materials, and particularly relates to a Bi / UiO-66 binary composite photocatalytic material as well as a preparation method and application thereof. According to the preparation method, the advantages of BiOI and UIO-66 are ingeniously combined, and UIO-66 serving as a metal organic framework with a stable structure has a richer and adjustable aperture structure and an oversized specific surface area, so that adsorption and enrichment of pollutants are facilitated. The Bi-coated UiO-66 photocatalytic material taking the UiO-66 as the carrier disclosed by the invention has an ideal synergistic effect of adsorption and photocatalysis, and has very good catalytic activity. The Bi / UiO-66 composite catalyst is prepared through an in-situ reduction synthesis method, and the preparation method is simple, green, environmentally friendly, free of secondary pollution and high in photocatalytic efficiency and has certain commercial application value.

The invention provides a colorimetric / fluorescent dual-mode sensor, a preparation method of the colorimetric / fluorescent dual-mode sensor and application of the colorimetric / fluorescent dual-mode sensor in histamine detection. The colorimetric / fluorescent dual-mode sensor comprises a horseradish peroxidase-loaded metal organic framework (HRP-AIE-MOF), hydrogen peroxide and a chromogenic substrate o-phenylenediamine (OPD), horse radish peroxidase (HRP) in the HRP-coated AIE-MOF can oxidize colorless OPD into yellow 2, 3-diaminophenazine (DAP), an ultraviolet absorption peak is generated at 425 nm, a strong fluorescence emission peak is generated at 555 nm, the HRP-coated AIE-MOF has a strong fluorescence emission peak at 450 nm, and the HRP-coated AIE-MOF and a fluorescence signal of the DAP can form a ratio fluorescence sensor. According to the invention, the excellent catalytic ability of natural enzyme and the luminescence characteristic of AIE-MOF are integrated in one system, and high-sensitivity histamine detection is realized.

The invention belongs to the technical field of fluorescent active substance development, and particularly relates to a cadmium (II)-based metal organic framework crystalline material as well as a preparation method and application thereof. The molecular formula of the cadmium (II)-based metal organic framework crystalline material is {[Cd3 (Br-BDC) 3 (BMIP) 2]. 2H2O} n, cadmium (II) ions serve as connecting nodes, BMIP and H2 (Br-BDC) ligands serve as bridging ligands to be in mutual bridging to form a three-dimensional space structure, Cd-O secondary structural units are contained in the structure, three Cd atoms form a trinuclear Cd-O cluster structure through the Cd-O secondary structural units, and the Cd (II)-based metal organic framework crystalline material has the structural formula shown in the description. The Cd1 atom and the Cd1 # atom are in mirror symmetry. The divalent cadmium ion fluorescence sensing material can be prepared by adopting a one-pot solvothermal reaction; the preparation method has the advantages of simple process, convenience in operation, high yield, good reproducibility and the like; the cadmium (II) fluorescent sensing material disclosed by the invention is relatively high in fluorescence emission spectrum intensity and can be applied to the fields of molecular fluorescent probes, metal ion detection and the like.

The invention provides a biaxially oriented nylon light conversion film as well as a preparation method and application thereof. A nylon / flaky nano silicon dioxide blend is used as a supporting layer, a nylon / boric acid functionalized terbium metal organic framework material blend is used as a variable light conversion characteristic layer, and the two-way stretching nylon light conversion film is obtained through synchronous two-way stretching. The film has dripping and variable light conversion characteristics, and can convert ultraviolet light into red orange light or blue light.

The invention discloses a preparation method of a metal organic framework modified fluorine-free super-amphiphobic coating, and belongs to the technical field of super-amphiphobic coatings. According to the technical scheme, the method comprises the steps of preparation and modification of a metal organic framework and formation of a fluoride-free super-amphiphobic coating. Adding a metal oxide and nano silicon dioxide particles into a polyacrylic acid solution to form spherical particles; enabling the spherical particles to react with imidazole ligands to obtain metal organic framework particles with porous spherical structures, and wrapping nano silicon dioxide particles in the metal organic framework particles; modifying the metal organic framework particles by using a silane coupling agent; the preparation method comprises the following steps: firstly, attaching modified metal organic framework particles to the surface of a metal matrix, then attaching fluorine-free alkyl silane to the surface of the metal matrix, and heating and curing to obtain the fluorine-free super-amphiphobic coating. The fluorine-free super-amphiphobic coating is applied to the aspect of a metal surface super-amphiphobic coating, and the problems that an existing fluorine-free super-amphiphobic coating is poor in oleophobic and hydrophobic performance and poor in durability are solved.

The invention discloses a bimetal MOFs-loaded electrostatic spinning fiber membrane for oil-water separation and a preparation method thereof, and belongs to the technical field of membrane separation, and the preparation method comprises the following steps: (1) preparing a hydroxyl-modified metal organic framework material MIL-53 (Al)-OH through a solvothermal reaction; (2) preparing an MIL-53 (Fe) precursor solution by using ferric salt, terephthalic acid, polyvinylpyrrolidone and an organic solvent, ultrasonically dispersing MIL-53 (Al)-OH in the MIL-53 (Fe) precursor solution, uniformly mixing, and soaking the electrostatic spinning fiber membrane in the MIL-53 (Fe) precursor solution for 1-3 hours; and (3) transferring the system in the step (2) into a reaction kettle, reacting at 130-150 DEG C for 10-15 hours to enable the bimetallic MOFs to grow on the surface of the electrostatic spinning fiber membrane, washing, and drying to obtain the bimetallic MOFs-loaded electrostatic spinning fiber membrane for oil-water separation. The bimetal MOFs-loaded electrostatic spinning fiber membrane has the advantages of good oil-water separation performance, strong antifouling ability and strong dye degradation ability.

The invention discloses preparation of a high-performance carbon matrix embedded iron-based catalyst based on a metal organic framework precursor and application of the high-performance carbon matrix embedded iron-based catalyst in reverse water-gas shift reaction. In the preparation process, commercially available 1, 3, 5-trimesic acid iron (the chemical formula is C9H3FeO6, abbreviated as Fe-BTC) is selected as a raw material, pyrolysis treatment is carried out in an argon atmosphere, then air passivation is carried out, and finally the high-performance carbon matrix embedded iron-based catalyst based on the metal organic framework precursor is successfully prepared. The MOF-600 has excellent performance in many catalysts, the carbon dioxide production rate reaches 24.0 mmol CO.gcat <-1 >. S <-1 > at the temperature of 400 DEG C in a reverse water gas shift reaction, the performance is remarkably superior to that of an existing non-noble metal catalyst, and extremely high catalytic efficiency and application potential are shown.

The invention discloses a low-temperature-resistant organic silicon elastic damping body and a preparation method thereof, and belongs to the field of synthesis of organic polymer materials. The invention relates to a high-efficiency photoinitiator, which is prepared from the following ingredients in parts by weight: 95 to 110 parts of fluorosiloxane-phenylsiloxane segmented copolymers, 25 to 35 parts of boric acid ester end-capped polyurethane prepolymers, 10 to 15 parts of neodymium-containing metal organic frameworks, 20 to 40 parts of azobenzene modified CNT / TiO2, 2 to 4 parts of photoinitiators 1173 and 2 to 3 parts of neodymium acetylacetonate. Ultralow-temperature adaptability, self-repairing and high-modulus coexistence and wide-temperature-range damping stability are achieved through fluorosilicone / phenyl block copolymer molecular design, a borate-neodymium coordination double-dynamic network, stress response filler and a light-heat gradient curing process. The low-temperature-resistant organic silicon elastic damping body prepared by the invention provides a new solution idea for an extreme environment damping material, and has a wide application prospect.

Provided herein are water harvesting systems, as well as methods using such systems, for capturing water from surrounding air. The systems and methods use water capture materials to adsorb water from the air. For example, the water capture materials may be metal-organic-frameworks. The systems and methods desorb this water in the form of water vapor, and the water vapor is condensed into liquid water and collected. The liquid water is suitable for use as drinking water.

The invention discloses a composite solid electrolyte and a preparation method and application thereof, and belongs to the technical field of solid lithium batteries. The composite solid electrolyte comprises a polymer matrix, a lithium salt and a lithium ion modified ionic metal organic framework (MOF) material. The metal center of the ion-conducting MOF material can be selected from Zr, Ti, Hf and the like, and the organic ligand can be selected from organic acids containing sulfydryl, sulfo groups and the like. The MOF material can effectively inhibit crystallization of a polymer matrix and increase the proportion of an amorphous region, Lewis acid sites on the surface of the MOF material can promote dissociation of lithium salt, and a lithium ion coordination channel formed in the MOF material can provide an extra rapid transmission path for lithium ions. When the electrolyte is applied to the solid-state lithium battery, the growth of lithium dendrites can be effectively inhibited, and the rate capability, the cycling stability and the safety of the battery can be remarkably improved.