600 results about "Organic molecules" patented technology

An organic molecule is disclosed comprising:a first chemical moiety with a structure of formula I,andtwo second chemical moieties, each at each occurrence independently from another consisting of a structure of formula II,wherein the first chemical moiety is linked to each of the two second chemical moieties via a single bond.

The invention relates to an organic molecule for the application in optoelectronic devices. According to the invention, the organic molecule hasa first chemical moiety with a structure of Formula I:anda second chemical moiety with a structure of Formula II:wherein W is the binding site of a single bond linking the first chemical moiety to the second chemical moiety,L is selected from a direct bond and a linking group with a structure of Formula BN-I:wherein the dashed lines denote the binding sites as indicated in Formula I, and # represents the binding site of the first chemical moiety to the second chemical moiety.

A surface-modified catalyst, a multilayer cathode and a system for the electrochemical reduction of carbon dioxide in an acidic medium releasing protons are described. More particularly, the surface-modified catalyst, the multilayer cathode and the system comprise least one heterocyclic organic molecule preventing protons from accessing an active site on a surface of the cathode catalyst material to decrease an hydrogen evolution reaction, as compared to the absence of said heterocyclic organic molecule. The use of the surface-modified catalyst, the multilayer cathode and the system for the production of multicarbon products as well as their processes of manufacturing are also described. Finally, also described are methods for electrochemical production of a multicarbon product using the multilayer cathode and the system.

The invention discloses a preparation method and application of an organic molecule metal ion double-intercalation vanadium-based oxide positive electrode material, and the method comprises the following steps: S1, adding 2, 5-hexanedione, aluminum chloride and a vanadium-based oxide into deionized water according to a preset molar ratio, and stirring to a uniform state; s2, continuously stirring the solution prepared in the step S1, controlling the stirring rate, and dropwise adding diluted hydrochloric acid to adjust the pH value to a target pH value; and S3, washing and drying the material prepared in the step S2 to obtain the organic molecule metal ion double-intercalation vanadium-based oxide positive electrode material. The vanadium-based oxide positive electrode material is optimized by applying an organic molecule metal ion double-intercalation strategy, the skeleton is greatly stabilized, the bonding mode of the vanadium-based oxide is optimized, more Zn < 2 + > ion intercalation active sites are provided, and the electrochemical performance of the material is improved. The prepared organic molecule metal ion double-intercalation vanadium-based oxide positive electrode material shows excellent cycling stability, relatively high specific capacity and excellent rate capability.

The invention is suitable for the technical field of water electrolysis hydrogen production, and provides an alkyne-rich carbon-ruthenium nickel alloy catalyst and a preparation method and application thereof. The preparation method comprises the following steps: simultaneously adding a ruthenium salt solution, a nickel salt solution and an organic molecule solution into an alkyne-enriched carbon dispersion liquid for reaction; and carrying out centrifugation, cleaning and vacuum drying treatment on the reacted mixed solution to obtain the alkyne-rich carbon-ruthenium nickel alloy catalyst. According to the invention, the acetylene-rich carbon-ruthenium nickel alloy catalyst uniformly loaded with ruthenium nickel (RuNi) clusters is successfully prepared. In the performance evaluation of hydrogen production by water electrolysis in a simulated seawater environment, the material shows excellent hydrogen evolution activity as a cathode catalyst. Experimental results show that under the applied potential of-0.6 V (relative to a reversible hydrogen electrode, RHE), the absolute value of the current density can reach 0.847 A cm <-2 > to 0.896 A cm <-2 >. The invention provides a feasible material solution for developing a high-performance water electrolysis hydrogen production catalyst suitable for a complex water quality environment.

According to the aqueous electrolyte, the preparation method and the aqueous metal ion battery provided by the invention, the zinc salt, the deionized water and the additive are mixed to obtain the electrolyte, and the additive comprises the carbamido-containing organic molecules, so that a double-electric-layer structure on the surface of zinc metal can be changed, an energy barrier in a stripping process can be reduced, and a zinc metal negative electrode can be regulated and controlled to be stripped uniformly; the battery is promoted to show stable cycle performance under high current and high capacity; meanwhile, the electrolyte containing the carbamido organic molecule additive optimizes the surface state of the zinc metal negative electrode and ensures the advantages of high ionic conductivity, low cost and environmental protection of the pure water system electrolyte; besides, the aqueous electrolyte provided by the invention can be applied to the rechargeable aqueous zinc ion battery, realizes long cycle life under high current density and deposition capacity, and has wide application prospects.

The invention belongs to the field of sodium-ion batteries, and discloses a sodium-ion battery electrolyte and a sodium-ion battery. The sodium-ion battery electrolyte comprises sodium salt, an organic solvent and an organic molecular additive shown in the following formula, wherein R1 to R5 are respectively and independently any one of F, Cl, Br, I, CN, H, OH, SH and NO2. A boron atom in the molecular structure of the additive is used as an electron-deficient center and can be preferentially complexed with anions or solvent molecules in the electrolyte to pre-stabilize an electrode interface; the bond energy of the B-O bond is moderate, so that the oxidation potential of the B-O bond is lower than that of a main body carbonate solvent, the B-O bond can be preferentially decomposed in the first charge-discharge process, and a thin, compact and highly stable positive electrode electrolyte interface film is formed on the surface of a positive electrode; the controllable substituent group on the benzene ring further regulates the decomposition potential of molecules through an electronic effect, so that the film forming time and the film property can be precisely regulated and controlled. The stable CEI can effectively inhibit continuous decomposition of the electrolyte at high temperature and high pressure, and the cycling stability of the battery in the high-temperature and high-pressure environment is remarkably improved.

The invention relates to the technical field of hydrogen storage of organic aromatic hydrocarbon molecules, in particular to a derivative of a benzopyrrole compound, a preparation method and application of the derivative, a hydrogen storage method and a hydrogen release method. The chemical structural formula of the derivative is selected from one of M1, M2, M3, M4, M5R and M5S, wherein when the chemical structural formula of the derivative is M1, M2, M3, M5R or M5S, A is selected from a saturated alkyl chain with the carbon number of 1-6 or an unsaturated alkyl chain with the carbon number of 2-6; when the chemical structural formula of the derivative is M4, A is selected from a saturated alkyl chain with the carbon number of 1-6, an unsaturated alkyl chain with the carbon number of 2-6 or boron. Compared with azacyclo-organic molecular materials (carbazoles and indoles) which exist in the field of organic hydrogen storage and are massively researched, the azacyclo-aromatic organic molecular material containing the double nitrogen atoms, which can generate a bridging structure between the double nitrogen atoms and can be used for hydrogen storage, is provided for the first time; and the material is large in hydrogen storage capacity and low in melting point.

The invention relates to the field of power cable materials, in particular to an ultrahigh-voltage cable insulating material, a preparation method thereof and a cable. The ultrahigh-voltage cable insulating material is prepared from the following raw materials in parts by mass: 80 to 100 parts of polyethylene, 1 to 5 parts of a cross-linking agent, 0.5 to 1 part of a compatilizer and 0.1 to 1 part of an organic molecular semiconductor. According to the ultrahigh-voltage cable insulating material, the organic molecule semiconductor with high electron affinity is introduced into the polyethylene matrix, and free electrons are attracted and fixed through strong static electricity of the organic molecule semiconductor, so that injection, migration and accumulation processes of charges in the cable insulating material are blocked; the problem of space charge accumulation of a cable insulating material in a high-voltage environment is solved from the source, and the insulativity and the long-term operation reliability of the cable insulating material are effectively improved.

A layered carbon fluoride (CFx) material is proposed in which polymer strands, oligomers or small organic molecules are intercalated between the layers of CFx and covalently bind to CFx. The resulting intercalated CFx material, when applied as a cathode active species, allows for a very fast cation transport and for the realization of simultaneous high energy and high power during the discharge of metal-CFx batteries.

The invention relates to a composite fiber and a preparation method thereof. The composite fiber comprises: a core comprising MXene polymer fibers, wherein MXene is distributed as stacked nanosheets within a first polymer; a first coating of organic molecules based on benzoic acid on the MXene polymer fibers; a second polymer in the form of fibers on the first coating; and a second coating of a thermoplastic polymer having a thermal strain of about 80 DEG C or higher. Methods for making composite fibers involve mixing MXene and a first polymer, depositing a first coating, stranding and twisting with a second polymer, and applying a second coating. The first polymer may include polyacrylonitrile (PAN) and the second polymer may include a material such as nylon or polyethylene terephthalate (PET). The method includes steps such as wet spinning and surface treatment at elevated temperatures.

The invention relates to the technical field of biological medicine, in particular to an organic copper ion complex with high photothermal conversion efficiency and preparation and application thereof.The organic copper ion complex is prepared by dissolving reactants in an organic solvent, reacting for a period of time, washing, drying and purifying to obtain pure organic molecules; the novel organic copper ion complex material is obtained by mixing the copper ions with Cu < 2 + >, the light absorption range is expanded from a visible light region to a near-infrared light region, and the material is simple to prepare, shows good near-infrared light absorption capacity, has excellent photo-thermal and copper ion synergistic sterilization capacity and is suitable for popularization and application in the field of biomedicine.

This invention relates to an integrated electrocapture and conversion catalyst, its preparation method, and its application in the electroreduction of flue gas to produce carbon monoxide. The catalyst consists of gold nanoparticles modified with thiadiazole-based organic ligands, including 2-amino-5-mercapto-1,3,4-thiadiazole, 2-mercapto-5-methyl-1,3,4-thiadiazole, or 2,5-mercapto-1,3,4-thiadiazole. This invention provides a method for preparing the aforementioned integrated electrocapture and conversion catalyst. This method features mild preparation conditions, a simple and clear process, and good reproducibility. The thiadiazole-based organic molecular layer captures carbon dioxide in a reduced state, achieving local enrichment of carbon dioxide. The enriched carbon dioxide is further reduced to carbon monoxide by the gold nanoparticles. In flue gas with a 15% carbon dioxide concentration, a carbon monoxide Faraday efficiency of up to 80.4% can be obtained.

This invention relates to liquid crystal media comprising polymerizable compounds. Specifically, this invention relates to liquid crystal (LC) media comprising a polymerizable component A containing polymerizable compounds, at least one of which is a polymerizable self-aligning additive of formula MES-Ra(I) for vertical alignment, and a liquid crystal LC component B comprising one or more mesocrystalline or liquid crystal compounds selected from formulas CY and PY, wherein the formulas are as follows and defined in the claims, and other additives (HH) comprising organic molecules having groups having at least six of the following formulas.

The invention relates to a process for the production of an organic layer comprising regions with different electronic properties. The process is based on the use of dihydroanthracene, dihydrobenzene, benzol or fluorene precursors functionalised with at least one substituted propargyl alcohol. By subjecting these precursors to a reduction / re-aromatisation reaction and / or to a retro-Favorskii reaction one obtains small organic molecules or polymers having different electronic properties, due to the specific chemical composition generated by the different chemical reactions in which the precursors are involved. Therefore, starting from the same precursor and subjecting it alternatively to the two specified reactions, one obtains products with different electronic properties. i.e. molecules characterised by high energy levels of the highest occupied molecular orbital (HOMO), which have at least one aromatic ring substituted with at least one ethynyl group, and molecules characterised by lower energy levels of the lowest unoccupied molecular orbital (LUMO), which have at least one carbonyl functionality, preferably at least one quinone ring or at least one phenyl with at least one carbonyl functionality. The reactions are carried out in such a way that the final products are incorporated into a single organic layer.

The present invention belongs to the field of biomedicine. Provided are an organic molecular self-assembly serving as a carrier-free system, and a preparation method therefor and the use thereof. Provided is a self-assembly, which is composed of steroidal molecules, and by means of optimizing the molecular structures of these steroids and critical aggregation concentrations thereof, a carrier-free system formed via self-assembly of the steroidal molecules is prepared. The carrier-free system can be loaded with a drug to prepare a drug nanocomposite. In the nanocomposite, the efficacy of the drug is improved, and the effects of reducing toxicity and improving efficacy can be achieved. If the steroid molecules used are themselves biologically active, the pharmacological activity of the steroid molecules remains unaffected after being prepared into the drug nanocomposite. The carrier-free system has the advantages of both a carrier-free nano-preparation and a nano-preparation using a conventional material as a carrier.

Textile fibers at least partially coated with a coating that includes particles of metal-organic frameworks dispersed in a polymeric base are provided. Also provided are fabrics formed from the textile fibers, protective gear and articles of clothing made from the fabrics, and methods of using the fibers and fabrics to catalyze the hydrolysis of organic molecules, such as organophosphate-based nerve agents, having hydrolysable bonds.

The invention discloses an aluminum alloy complex cavity diffusion welding method, which is characterized in that a uniform and compact organic molecule adsorption protection layer is formed on the surface of aluminum by completely immersing a cleaned blank in a diethylene glycol dimethyl ether solution for ultrasonic-assisted treatment. The protective film can effectively isolate air at normal temperature and prevent the oxidation film from regenerating; and in the initial stage of diffusion welding temperature rise, the aluminum alloy can be completely decomposed and volatilized, no impurity is left, and the high-activity clean aluminum surface is exposed. According to the method, diffusion welding is carried out under the conditions that the vacuum degree is high, the temperature is 500-560 DEG C and the pressure is 5-15 MPa in cooperation with a positioning tool system matched with the thermal expansion coefficient, aluminum atoms are fully diffused under the condition that no oxidation film hinders exist, and high-quality metallurgical bonding is formed. By means of the technical scheme, the problem that the welding rate is low due to an oxidation film on the surface of the aluminum alloy is successfully solved, meanwhile, the defects of ultrahigh vacuum equipment input and middle layer material introduction are overcome, and the manufacturing quality and production efficiency of complex aluminum alloy components are greatly improved.

The invention provides a bouquet-shaped calcium carbonate preparation method, and relates to the technical field of calcium carbonate preparation processes. The preparation method comprises the following steps: 1) adding polyhydroxy organic acid into water as a base solution; 2) preparing a calcium hydroxide suspension as a calcium source; (3) simultaneously adding a calcium source into the base solution and introducing CO2 gas; 4) adjusting the adding speed of a calcium source in real time to control the reaction conductivity interval until the carbonation reaction is finished to obtain a calcium carbonate suspension; and 5) precipitating, filtering, drying and screening the obtained suspension to obtain a target product. According to the invention, the formation of bouquet-shaped calcium carbonate crystals is controlled by combining conductivity regulation and control and an organic molecule induction method. The method is simple in operation process and small in chemical reagent addition, and the prepared bouquet-shaped calcium carbonate is uniform in morphology, good in dispersion, multiple in interfacial active sites, large in specific surface area and rich in pores and has a secondary fine structure.

This invention relates to the field of wastewater treatment technology, specifically to a highly efficient adsorbent wastewater treatment agent and its preparation method, comprising the following raw materials in parts by weight: 50-70 parts activated carbon powder, 8-12 parts deionized water, 5-10 parts ammonium bicarbonate, 1-3 parts sodium dodecyl sulfate, 15-25 parts additive A, and 8-15 parts additive B. In this invention, the stably loaded cerium ions can effectively exert their specific coordination and capture effect on heavy metals. The chitosan introduced into the carrier can enhance the electrostatic and chelate adsorption of anionic pollutants and organic molecules. Simultaneously, the well-developed pores formed after shellac carbonization combine with the network structure of chitosan, further increasing the specific surface area of ​​the material and the adsorption capacity of organic pollutants, achieving highly efficient and stable adsorption of heavy metals, dyes, and organic pollutants.

This invention discloses a bioelectrochemical denitrification system using a slow-release carbon source as the anode fuel, belonging to the field of microbial fuel cell technology. It comprises an anode chamber, a cathode chamber, an anode, a cathode, wires, and a separating membrane between the anode and cathode chambers. Electrochemically active microorganisms grow on the anode in the anode chamber, and anaerobic fermentation bacteria are present in the solution. An electrolyte and hydrogel particles with slow-release carbon function are added to the anode chamber. Electrochemically active denitrifying bacteria grow on the cathode in the cathode chamber. The hydrogel-released carbon serves as the solid fuel at the anode, providing a continuous electron donor to the cathode. Simultaneously, the selective permeation membrane controls the transmembrane transport of small organic molecules to the cathode, providing a carbon source for the denitrifying bacteria. The combined supply of electrons and carbon enhances denitrification by the denitrifying microorganisms at the cathode. This system is suitable for enhanced denitrification of polluted water bodies with low C / N ratios.

The invention provides a biosensor, a preparation method thereof and a neurotransmitter detection system. The biosensor comprises a substrate and a plurality of sensing units arranged on the substrate, wherein each sensing unit comprises an electrode pair, a boehmite functional layer, a functional organic molecule and an aptamer molecule. The electrode pair comprises a first electrode and a second electrode which are oppositely arranged to form a gap area. The boehmite functional layer is arranged in the gap area so as to connect the first electrode and the second electrode. The functional organic molecules are covalently connected with hydroxyl functional groups of the boehmite functional layer. And the aptamer molecule is covalently linked with the functional organic molecule. The aptamer molecules of different sensing units have different spatial configurations. According to the application, a plurality of sensing units are integrated and aptamer molecules of different sensing units are endowed with differential spatial configurations, so that the core problems of serious cross interference and incapability of synchronously detecting multiple targets caused by similar target molecular structures in multi-neurotransmitter detection of a traditional sensor are effectively solved.

The present invention relates to the technical field of photoelectric devices. Disclosed are a two-dimensional organic / inorganic heterojunction photodetector and a preparation method therefor. According to the present application, a few-layer two-dimensional material is transferred onto a substrate as a base material by means of a mechanical exfoliation method, a few-layer two-dimensional alloy material is transferred to one side of the two-dimensional material as the base material by means of PDMS, then the base material is put into a tubular furnace, to accurately epitaxially grow a single organic molecular layer on the two-dimensional alloy material by controlling the heating temperature and time to form a heterojunction, and finally gold films are transferred onto the organic molecular layer to obtain the photodetector. The heterojunction formed by the Van Der Waals epitaxially grown organic molecular layer and the two-dimensional alloy material is nearly defect-free, and can enhance light absorption without causing carrier trapping; thus, the photodetector has excellent detection capabilities, high light absorption and photoconductive gain, and a high response speed, can achieve high-frame-rate imaging under low-light conditions, and has broad application prospects in the field of imaging.

The present invention relates to crystalline solids comprising organic molecules and to the use of the crystalline materials in optical films and electro-optical devices.

The invention provides synthesis of small organic molecule TPAY based on a triphenylamine group and application of the small organic molecule TPAY in photocatalytic hydrogen evolution, and belongs to the technical field of photocatalytic materials. The small organic molecule based on the triphenylamine groups has the characteristics of a push-pull electron structure, and two triphenylamine groups are introduced into the molecular structure. The introduction of a triphenylamine group further expands a molecular conjugate plane, and is beneficial to improving intramolecular diffusion and dissociation of photo-generated excitons. The small organic molecule TPAY based on the triphenylamine group is successfully applied to a photocatalytic hydrogen evolution experiment, good hydrogen evolution efficiency is achieved, and the performance of the small organic molecule TPAY is superior to that of a corresponding small organic molecule Y6 without the triphenylamine group.

The invention relates to a gas-sensitive sensor technology, and particularly discloses a gas-sensitive sensing device based on a three-dimensional bionic spiral step structure, which comprises a three-dimensional bionic spiral step substrate, a flexible electrode mounted on the inner wall of the three-dimensional bionic spiral step substrate, and a gas-sensitive film deposited on the surface of the flexible electrode. According to the device, trace gas such as volatile organic compounds and the like entering the gas chamber can be guided by the specific three-dimensional bionic spiral stepped structure to bypass along a spiral path for multiple circles and repeatedly sweep over the surface of a gas sensitive film, so that the effective contact opportunity of gas molecules and a sensitive layer is remarkably increased. By simplifying the installation mode of the three-dimensional bionic spiral stepped substrate and the flexible electrode, the background interference of small organic molecules slowly released in the curing and aging process of a traditional adhesive on trace gas detection is avoided. Meanwhile, the idea of parallel connection of multiple sensors is provided, and the problems that an existing gas sensitive sensor of a plane structure is insufficient in low-concentration gas detection sensitivity and high in detection limit are effectively solved.

Disclosed is a method with which it is possible to relatively easily manufacture a member having a recessed structure that is close to a vertical structure. This method for manufacturing a member having a recessed structure includes: (1) installing a catalyst material (130) on a part of a first surface (112) of a workpiece (110), wherein the first surface (112) contains silicon (Si), and oxygen (O) and / or nitrogen (N), and the catalyst material (130) contains an organic molecule; and (2) exposing the workpiece (110) to a fluorine-containing gas at 80°C or higher. After the step (2), a recessed structure (150) is formed in a part of the first surface (112). With respect to the organic molecule, the value of the distance dHF between the hydrogen atom and the fluorine atom in a hydrogen fluoride molecule when an adsorption structure is assumed is 0.965 (Å) or more as calculated using the 6-31 + G(d) basis function and the B3LYP correlation-exchange functional.

The invention provides a D-A-D type near-infrared organic molecule as well as a preparation method and application thereof. The compound disclosed by the invention has a near-infrared emission characteristic adaptive to chronic wound diagnosis and treatment and can effectively penetrate through superficial tissues to middle tissues of a wound, and self-absorption interference of the compound is remarkably reduced due to reasonable Stokes displacement; the PDT-PTT performance is excellent, and the application requirements of wound treatment are met. The excellent light diagnosis and treatment activity further guarantees the stability of diagnosis and treatment signals and the energy transmission efficiency. (I).

The invention discloses a double-cross organic conjugated small molecule compound, a preparation method thereof and application of the compound as a thermoelectric material, the compound comprises plane conjugated structure units such as anthracene or pentacene connected with thiophene rings, and the compound has a spatial three-dimensional conjugated plane structure; the multi-dimensional Pi-Pi accumulation among organic molecules is realized, the interaction with the bent surface of the carbon nanotube in multiple directions is realized, the charge transfer and transmission between organic molecules and organic molecules and between organic molecules and the carbon nanotube are promoted, the carrier mobility and conductivity are effectively improved, and the material has relatively high thermoelectric performance. According to the preparation method of the double-cross organic conjugated small molecule compound, reaction reagents are relatively simple, the reaction process is simple, and reaction conditions are mild; a target product can be obtained through one-step reaction.

The invention provides a plating bath for preparing a titanium-based lead dioxide electrode through electro-deposition and a preparation method of the plating bath, and relates to the field of plating baths, and the plating bath comprises lead p-toluenesulfonate, p-toluenesulfonic acid, fluoride of alkali metal and a dopant. The titanium-based lead dioxide electrode plating bath selects lead p-toluenesulfonate as a main salt and p-toluenesulfonic acid as an acid source, on one hand, the p-toluenesulfonic acid has a weak complexing effect and can form a complex with lead ions in the plating bath, the polarization effect of electro-deposition is increased, the compactness of a lead dioxide electro-deposition layer is improved, and the electrode stability is improved; on the other hand, p-toluenesulfonic acid serving as a hydrophilic organic molecule containing a large-pi conjugated system can be adsorbed on the surface of a lead dioxide crystal, growth of the lead dioxide crystal is regulated and controlled, electrodeposition distortion and internal stress of a lead dioxide active layer are reduced, and the accelerated life of an electrode is prolonged; and meanwhile, the p-toluenesulfonic acid can promote the dominant growth of beta-PbO2 with high catalytic activity, and is beneficial to improving the electrocatalytic activity of the titanium-based lead dioxide electrode.