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381results about How to "Lower synthesis cost" patented technology

Microwave-assisted method for preparing asphalt-based nitrogen-doped functionalized mesoporous carbon

The invention discloses a microwave-assisted asphalt-based nitrogen-doped functionalized mesoporous carbon preparation method, which comprises: (1) carrying out crushing treatment on ash-removed refined coal liquefaction asphalt to obtain asphalt powder; (2) mixing the asphalt powder with a template agent and a nitrogen source, and carrying out microwave-assisted pre-oxidation treatment; (3) carrying out carbonization treatment on the pre-oxidized product; (4) adding an acidic solution into the carbonized product, and stirring and mixing to form slurry; then carrying out microwave-assisted pickling treatment on the slurry; (5) washing the acid pickling product until the pH value is neutral, and then carrying out drying treatment; and (6) activating the dried product to obtain the asphalt-based nitrogen-doped functionalized mesoporous carbon. According to the method, the carbonization temperature is reduced through the microwave-assisted technology, the specific surface area of the product is increased, the acid pickling process is simplified, and the problems that in the prior art, the pore structure of a mesoporous carbon material is prone to collapse and damage, and a template is not thoroughly removed can be effectively solved.
Owner:CCTEG CHINA COAL RES INST

Nucleic acid aptamer combination suitable for single cell sequencing and application of nucleic acid aptamer combination in construction of biliary tract cancer cell map

The invention discloses a combination of different nucleic acid aptamers with known 291 targets, sequences of the nucleic acid aptamers of the combination are subjected to sequencing analysis through a single-cell high-throughput sequencing technology, and a cell map aiming at peripheral blood-derived mononuclear cells of a biliary tract cancer patient can be constructed. The nucleic acid aptamers covered by the combination have high specific affinity to molecular targets of the nucleic acid aptamers, and after the two ends of the nucleic acid aptamer sequences extend to adapt to joints of a commercial sequencing platform, high-throughput sequencing is carried out on the nucleic acid aptamer sequences which are combined with the surfaces of mononuclear cells and are provided with the sequencing joints; high-throughput analysis of the biomarkers on the surface of the peripheral blood-derived mononuclear cell of a biliary tract cancer patient can be realized, so that the cell map of the peripheral blood-derived mononuclear cell of the biliary tract cancer is constructed.
Owner:HANGZHOU INSTITUTE OF MEDICAL SCIENCES CHINESE ACADEMY OF SCIENCES

Hydrogel dust suppressant for coal storage and transportation as well as preparation method and application of hydrogel dust suppressant

The invention discloses a hydrogel dust suppressant for coal storage and transportation as well as a preparation method and application thereof, and belongs to the technical field of dust suppression. The hydrogel dust suppressant for coal storage and transportation comprises the following components in parts by mass: 1-20 parts of a film-forming agent, 0.5-5 parts of a film-forming auxiliary agent, 0.5-15 parts of a thickening agent, 100-300 parts of a functional monomer, 20-50 parts of a neutralizing agent, 0.5-5 parts of a cross-linking agent, 0.5-5 parts of an initiator and 3-30 parts of a surfactant. The prepared hydrogel dust suppressant for coal storage and transportation has excellent film-forming property and cohesiveness, and dust flying in the coal transportation process is effectively inhibited. In addition, the prepared dust suppressant for coal storage and transportation is low in synthesis cost, the dilution multiple reaches up to 500 times, the transportation cost is greatly saved, the synthesis process is simple, the yield is high, and the dust suppressant is suitable for industrial production.
Owner:YANTAI UNIV

Method for leaching valuable metal from waste ternary lithium ion battery positive electrode material NCM111

The invention relates to a method for leaching valuable metals from a waste ternary lithium ion battery positive electrode material NCM111, and belongs to the technical field of recycling of waste lithium batteries. The preparation method comprises the following steps: adding L-ornithine hydrochloride and ascorbic acid into deionized water, and stirring and reacting at the temperature of 40-70 DEG C to generate a colorless and transparent deep eutectic solvent; the method comprises the following steps: adding the waste ternary lithium ion battery positive electrode material into a deep eutectic solvent, and stirring and leaching for 2-8 minutes at the temperature of 40-70 DEG C to obtain a valuable metal leaching solution; the deep eutectic solvent is used for leaching lithium, manganese, cobalt and nickel from the waste ternary lithium ion battery positive electrode material, leaching is only carried out for 4 min at the leaching temperature of 60 DEG C, and the leaching rate can reach 98% or above.
Owner:KUNMING UNIV OF SCI & TECH

A controllable hierarchical catalytic structure Pd, cerium oxide, silicon dioxide composite material and its preparation method and application

The present invention belongs to the field of material preparation, and discloses a preparation method and application of a composite material of Pd, cerium oxide and silicon dioxide with a controllable hierarchical catalytic structure. Cerium oxide rich in oxygen vacancies is used as a carrier, and Pd species are loaded by impregnation, and then dispersed on the surface of acidic silicon dioxide with a high specific surface area. Finally, a Pd / CeO2 / SiO2 material with a controllable hierarchical catalytic structure is prepared by high-temperature calcination and reduction, and is used to catalyze the hydrogenation conversion reaction of furfural. The preparation method of the present invention is simple, green and environmentally friendly, highly active, stable, cheap and easy to obtain, and can efficiently catalyze the hydrogenation conversion of furfural, and has good industrial application prospects.
Owner:YANGZHOU UNIV

Pt / TiO 2 Preparation method of catalyst and its application in NH 3 -Application of SCO reaction

The invention discloses a preparation method of a Pt / TiO2 catalyst and its application in NH3-SCO reaction. The preparation method comprises the following steps: providing nano titanium dioxide; mixing a platinum source, water and alcohol to prepare a platinum source solution; placing the nano titanium dioxide in the platinum source solution, turning on ultraviolet light for photodeposition reaction, and then filtering and drying the precipitate to obtain a Pt / TiO2 catalyst. The method can prepare a Pt / TiO2 catalyst with low noble metal loading, high and low temperature activity and high N2 selectivity.
Owner:JILIN UNIVERSITY

Fatty acylation BimBH3 analogue containing D-type amino acid as well as preparation method and application of fatty acylation BimBH3 analogue

The invention discloses a BimBH3 analogue containing D-type amino acid and N-terminal fatty acid acylation, a preparation method of the BimBH3 analogue and application of the BimBH3 analogue as a PTPN1 inhibitor to development of hypoglycemic drugs. The structural general formula of the novel BimBH3 mimic peptide analogue is shown as a formula I: # imgabs0 #, wherein Raa2 is equal to D-His, D-Leu, D-Pro, D-Ser, D-Arg, D-Gln, D-Lys, D-Trp, D-Val, D-Tyr, D-Ala, Raa3 is equal to D-Gln, Raa7 is equal to D-Arg, and Raa8 is equal to D-Allo-Ile. The mimic peptide compound is derived from a core region of a Bim-BH3 structural domain, different D-type amino acid site-specific replacement modification and N-terminal conjugated hexadecanoic acid modification are adopted for amino acids at the second, third, seventh and eighth sites respectively, the BimBH3 mimic peptide modified by the D-type amino acid is more stable and has higher metabolic stability, and the target binding capacity and inhibitory activity of the BimBH3 mimic peptide can still be reserved or even improved. The BimBH3 mimic peptide compound shows an excellent PTPN1 inhibitor, the ability of resisting protease hydrolase and various digestive enzymes is also remarkably improved, and the BimBH3 mimic peptide compound has longer pharmacological action time and can play a potential long-acting hypoglycemic role through subcutaneous injection or oral administration. The compound is completely prepared by a polypeptide solid-phase synthesis method, and an obtained crude product is subjected to semi-preparative liquid chromatography purification and freeze-drying to obtain a target compound.
Owner:QINGDAO UNIV OF SCI & TECH

Preparation method of TS-1 molecular sieve for phenol hydroxylation, molecular sieve and application

The invention belongs to the technical field of molecular sieve synthesis, and discloses a preparation method of a TS-1 molecular sieve for phenol hydroxylation, which comprises the following steps: dropwise adding tetraethyl orthosilicate into an aqueous solution containing tetrapropylammonium hydroxide; after clarification, dropwise adding a solution containing tetrabutyl titanate and isopropanol into the solution; carrying out hydrothermal crystallization, centrifugation, drying and calcination; the preparation method comprises the following steps: adding silica gel into an aqueous solution of tetrapropylammonium bromide and ethanolamine; dropwise adding a solution containing tetrabutyl titanate and isopropanol into the solution; adding a seed crystal; carrying out hydrothermal crystallization, centrifugation, drying and calcination; dissolving in an aqueous solution of tetrapropylammonium bromide and ethanolamine; and carrying out hydrothermal crystallization, centrifugation, drying and calcination. The method is low in cost and simple to operate, a large number of mesopores are formed in the molecular sieve, the diffusion mass transfer rate is increased, the content of hexa-coordinated titanium is greatly increased, and the catalyst has good catalytic activity in 1-hexene epoxidation, cyclohexene epoxidation, propylene epoxidation and phenol hydroxylation reactions.
Owner:TIANJIN UNIV +1

Preparation method of Prussian blue compound

PendingCN119240743ARealize large-scale industrial productionInhibition formationIron cyanidesCell electrodesElectrical batteryManganese
The invention belongs to the technical field of secondary ion batteries, and discloses a preparation method of a Prussian blue compound, which comprises the following steps: by taking sodium cyanide as a cyanide complexing agent and divalent manganese salt as a central complexing ion, carrying out coprecipitation reaction in an aqueous solution reaction system under the protection of an inert atmosphere and a reducing agent to prepare the Prussian blue compound NaxMn [Mn (CN) 6] y-1-y.nH2O. The Prussian blue compound prepared by the method can be used as an organic sodium ion battery positive electrode material or an aqueous sodium ion battery negative electrode material, and shows excellent electrochemical performance.
Owner:HONGXING (SHANXI) NEW ENERGY MATERIALS CO LTD

High-silicon ZSM-5 molecular sieve adsorbent for adsorbing methylbenzene and preparation method of high-silicon ZSM-5 molecular sieve adsorbent

The invention provides a high-silicon ZSM-5 molecular sieve adsorbent for adsorbing toluene and a preparation method thereof, and belongs to the technical field of adsorbents, the preparation method comprises the following steps: S1, preparing a uniform sol from a silicon source I, a reaction aid I and water according to a molar ratio of 1: 0.27: 37, placing in a hydrothermal kettle, crystallizing at 120 DEG C for 48 hours, filtering, washing, and drying to obtain Silicate-1 seed crystal; s2, preparing a molecular sieve mother solution from a silicon source II, an aluminum source, a reaction aid II and water according to a molar ratio of 100: 0.083: 20: 4000, adding Silicate-1 seed crystal accounting for 3wt% of the molecular sieve mother solution, uniformly mixing, putting into a hydrothermal kettle, reacting at 100-160 DEG C for 6-24 hours, filtering, washing, drying, and roasting at 550 DEG C for 6 hours to obtain a high-silicon ZSM-5 molecular sieve; and S3, screening the high-silicon ZSM-5 molecular sieve, and drying in a muffle furnace at 400 DEG C for 4 hours to obtain the high-silicon ZSM-5 molecular sieve adsorbent for adsorbing toluene. The methylbenzene adsorption capacity of the prepared adsorbent can be remarkably improved.
Owner:HENAN YINNUO LOW CARBON TECH CO LTD

Polypeptide specific for phosphatidyl alcohol proteoglycan 3 and application thereof

The invention discloses a polypeptide specific to phosphatidyl alcohol proteoglycan 3 and application of the polypeptide. The amino acid sequence of the polypeptide is as shown in SEQ ID No. 1 to SEQ ID No. 3. Experimental results prove that the polypeptide disclosed by the invention has relatively high affinity to phosphatidyl alcohol proteoglycan 3 (GPC3), has a good endocytosis effect on high-expression GPC3 cells, can be used as a candidate targeting molecule of an anti-tumor drug, and is used for treating or diagnosing cancers related to abnormal activation of a GPC3 target spot.
Owner:HUNAN ZONSEN PEPLIB BIOTECH CO LTD

Pyramid-type thermal assembly efficacy skin care nanoparticle based on DNA nucleic acid and application of pyramid-type thermal assembly efficacy skin care nanoparticle

The invention discloses a pyramid type thermal assembly efficacy skin care nanoparticle based on DNA nucleic acid and application thereof. According to the invention, skin-care active components are loaded into a nucleic acid framework in a thermal assembly innovation mode to obtain a'pyramid-shaped 'functional skin-care nano system, and the embedding rate, stability, infiltration capacity and bioavailability of the system are improved. According to the invention, four sections of nucleotide single chains with the length of 59 basic groups are designed as a tetrahedral framework sequence, so that the synthesis cost is reduced. According to the invention, a blending autonomous thermal assembly mode is developed to load skin-care active substances into a tetrahedral frame to prepare a'pyramid-shaped 'functional skin-care nano system, so that the embedding efficiency of the skin-care active substances is improved. Whitening active substances are wrapped, zebra fish experiments prove that the pyramid-shaped functional skin care (whitening) nanoparticles can more remarkably inhibit melanin synthesis and relieve and improve skin melanin pigmentation, and meanwhile, the system is proved to have a functional skin care effect.
Owner:SOUTH CHINA UNIV OF TECH +1

Novel polypeptide, polypeptide derivative and application thereof

The invention discloses a novel polypeptide, a polypeptide derivative and application thereof, and belongs to the technical field of biological medicine. The invention specifically relates to a specific sequence, a discovery process, a specific anti-tumor type, a long-acting modification mode and application of the novel polypeptide. The tumors comprise one or more of brain glioma, neuroblastoma, head and neck cancer, esophagus cancer, thyroid cancer, lung cancer, liver cancer, kidney cancer, breast cancer, cervical cancer, uterine cancer, ovarian cancer, colon cancer, small intestinal cancer, ileocecum cancer, stomach cancer, bladder cancer, pancreatic cancer, prostate cancer, bile duct cancer, melanoma, sarcoma, myeloma, lymphoma and leukemia; the compound has the specific effect of inhibiting proliferation and / or metastasis of tumor cells, is wide in treatment spectrum and has important treatment value in various tumors.
Owner:NANJING ANJI BIOLOGICAL TECH CO LTD

Brown planthopper gene NlCYP303A1 and nano nucleic acid pesticide thereof

The invention discloses a brown planthopper gene NlCYP303A1 and a nano nucleic acid pesticide of the brown planthopper gene NlCYP303A1. The nucleotide sequence of the gene NlCYP303A1 disclosed by the invention is as shown in SEQ ID NO: 1; the nano nucleic acid pesticide is mainly prepared from zinc nitrate hexahydrate, dsN1CYP303A1 and 2-methylimidazole. The gene NlCYP303A1 closely related to the ecdysis process of the brown planthopper is identified, and silencing of the gene can cause ecdysis failure of the brown planthopper and reduce the survival rate of the brown planthopper; furthermore, a dsN1CYP303A1-coated ZIF-8 nano nucleic acid pesticide delivery system is constructed on the basis of a nano carrier ZIF-8, and the biological activity of the dsN1CYP303A1-coated ZIF-8 nano nucleic acid pesticide delivery system is measured; results show that the nano nucleic acid pesticide delivery system overcomes the defect that the service life of dsRNA is short, and the control effect of the nano nucleic acid pesticide delivery system on brown planthopper is remarkably improved. The potential application value of RNAi in pest control is improved, and a new strategy is provided for pest drug resistance treatment.
Owner:HUAZHONG AGRI UNIV

Synthesis of organic phosphonic acid small molecule material and application of organic phosphonic acid small molecule material in perovskite solar cell

The invention belongs to the technical field of solar cells, and relates to synthesis of an organic phosphonic acid micromolecule material and application of the organic phosphonic acid micromolecule material in perovskite solar cells, the micromolecule material adopts a phosphonic acid group as a aiming group, different carbazole aromatic nuclei as head groups, and alkyl chains with different lengths are connected with the head groups and the aiming group; when the small molecule material is used as a hole transport layer material in a perovskite solar cell device, the efficiency and the stability of the device can be effectively improved; the micromolecule material is applied to a perovskite solar cell system as an interface modification layer, good device performance is obtained, and the service life of a perovskite solar cell under a high-temperature illumination condition is prolonged; the photoelectric conversion efficiency exceeds 24%, and the preparation method of the phosphonic acid small molecule material is simple and easy to operate, and has wide application prospects and market potential.
Owner:QINGDAO UNIV

Benzoyl galanthamine and preparation method thereof

The invention discloses benzoyl galanthamine hydrochloride and a preparation method thereof.The preparation method comprises the steps that sodium carbonate, benzoyl chloride and the like which are low in price and easy to obtain serve as raw materials and react in DCM at the normal temperature to obtain a benzoyl galanthamine crude product, then the benzoyl galanthamine crude product is converted into hydrochloride, recrystallization and purification are conducted, and the target product benzoyl galanthamine hydrochloride is obtained; the method has the advantages of mild process reaction conditions and high yield, effectively reduces the synthesis cost, avoids the use of dangerous and toxic reagents, and effectively reduces the generation of industrial three wastes; the process is simple, operation is convenient, raw materials are cheap and easy to obtain, and large-scale industrial production is facilitated.
Owner:ZHANG JIA GANG VINSCE BIO PHARM

Monatomic alloy and electrochemical preparation method and application thereof

The invention relates to a method for electrochemically preparing monatomic alloy, which comprises the following steps: preparing ionic liquid containing a main metal precursor, the main metal is Fe, Co, Ni, Cu, Au and / or Ag, and the ionic liquid is choline chloride-based ionic liquid; preparing the main metal through a three-electrode system by taking the ionic liquid containing the main metal precursor as electrolyte; pure ionic liquid serves as electrolyte to prepare monatomic alloy through a three-electrode system, a working electrode adopts main metal, a counter electrode adopts precious metal, the precious metal is Ru, Rh, Pt, Ir and / or Pd, and the precious metal is deposited on the surface of the main metal in a replacement mode. The invention further relates to the monatomic alloy and application of the monatomic alloy as a catalyst in water electrolysis hydrogen production. According to the method, the method is simple, rapid and low in cost, the problems that main metal is easy to sinter and the catalyst is inactivated due to noble metal single atom agglomeration are solved, and the monatomic alloy electrocatalyst with high catalytic activity is obtained.
Owner:SHANGHAI INSTITUTE OF APPLIED PHYSICS CHINESE ACADEMY OF SCIENCES

Preparation method of ZSM-22 molecular sieve

The invention provides a preparation method of a ZSM-22 molecular sieve. The preparation method of the ZSM-22 molecular sieve comprises the following steps: uniformly mixing an aluminum source, an alkali source, water, an organic template agent and a silicon source to obtain a gel mixed solution; at least crystallizing and roasting the gel mixed solution to obtain a ZSM-22 molecular sieve; wherein the organic template agent comprises an alcohol amine compound with the carbon number of 5-6. According to the preparation method of the ZSM-22 molecular sieve, the low-cost organic template agent is adopted, and the pure-phase ZSM-22 molecular sieve can be prepared.
Owner:PETROCHINA CO LTD

Self-assembled polypeptide-rheic acid conjugates, formulations, preparation methods and applications

ActiveCN120771299BCritical self-assembly concentration is lowlower synthesis costOrganic active ingredientsAntipyretic
This invention relates to the field of biopharmaceutical technology, providing a self-assembled peptide-rhein conjugate, its formulation, preparation method, and applications. The MMP-9-responsive self-assembled peptide-rhein conjugate of this invention, with the sequence Rhein-GFFPLGLAGACE, can respond to abnormally activated MMP-9 in atherosclerotic plaques, self-assembling in situ into a stable nanofiber structure at the lesion site. The rhein in this conjugate exhibits significant anti-inflammatory and antioxidant functions, but its water solubility and oral bioavailability are low. These are significantly improved after conjugation with the peptide, achieving targeted delivery and prolonging retention time. The introduction of the tripeptide ACE, which mimics the function of glutathione, further enhances the conjugate's ability to resist oxidative stress. Furthermore, this conjugate exhibits excellent anti-inflammatory and antioxidant effects, scavenging ROS, inhibiting inflammatory pathways, regulating macrophage phenotype, and inhibiting apoptosis, providing a new strategy for the treatment of atherosclerosis.
Owner:NANKAI UNIV

A kind of thermoplastic polyimide resin and preparation method thereof

The present invention discloses a thermoplastic polyimide resin and a preparation method thereof, wherein the preparation method of the thermoplastic polyimide resin comprises the following steps: S1, mixing a dianhydride monomer with a polar solvent, adding a diamine monomer, stirring, and obtaining a polyamic acid solution; S2, adding an organic base to the polyamic acid solution, adding a dehydrating agent, stirring, adding the reaction solution to an alcohol solvent to precipitate a precipitate, collecting the precipitate, washing, and drying, and obtaining a thermoplastic polyimide resin. The diamine monomer is a large sterically hindered biphenyl diaryl ether diamine monomer. The present invention introduces a twisted non-coplanar biphenyl diaryl ether skeleton to reduce the intermolecular stacking density, thereby effectively improving the T of the thermoplastic polyimide resin. g , T m and melt fluidity, effectively improving the melt processing performance of the material.
Owner:JIANGSU JICUI FUNCTIONAL MATERIALS RES INST CO LTD

Preparation method of urea type HATU

The invention provides a preparation method of urea type HATU, which comprises the following steps: step S1, carrying out reaction on N-hydroxy-7-aza-benzotriazole and inorganic alkali to obtain N-hydroxy-7-aza-benzotriazole salt; and step S2, enabling the N-hydroxy-7-aza-benzotriazole salt to react with tetramethyl chlorourea hexafluorophosphate, so as to generate the urea type HATU. The preparation method disclosed by the embodiment of the invention is simple in process, easy to operate, low in synthesis cost, high in experimental safety, easy in condition control and suitable for industrial production.
Owner:ANHUI HIGHFINE BIOTECH CO LTD

Perovskite solar cell, preparation method thereof and power utilization device

The invention belongs to the technical field of cells, and provides a perovskite solar cell, a preparation method thereof and a power utilization device. The perovskite solar cell comprises a first electrode, a second electrode and a functional layer located between the first electrode and the second electrode. The functional layer comprises a hole transport layer, a hole passivation layer and a perovskite absorption layer which are sequentially stacked, the material of the hole passivation layer comprises self-assembly molecules, and the self-assembly molecules comprise organic salt and optional organic acid. The perovskite solar cell has the characteristics of high photoelectric conversion efficiency and the like.
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD

Preparation method of all-silicon molecular sieve with MFI topology structure, all-silicon molecular sieve with MFI topology structure and application of all-silicon molecular sieve

PendingCN119143143AHigh synthetic yieldshorten crystallization timeLactams preparationSilicaMolecular sieveAlcohol
The invention relates to the field of preparation of molecular sieves, and discloses a preparation method of an all-silicon molecular sieve with an MFI topology structure, the all-silicon molecular sieve with the MFI topology structure and application of the all-silicon molecular sieve with the MFI topology structure, the method comprises the following steps: (1) mixing molecular sieve mother liquor, organic silicate ester, an organic template agent and alcohol to obtain a colloid mixture; the mass ratio of SiO2 in the molecular sieve mother liquor to the organic silicate ester based on SiO2 is (0.01-0.2): 1; the molar ratio of the alcohol to SiO2 in the molecular sieve mother liquor is (10-100): 1; (2) carrying out crystallization reaction on the colloid mixture; (3) carrying out solid-liquid separation on the crystallization product obtained in the step (2) to obtain a molecular sieve wet material and crystallization mother liquor; drying and roasting the molecular sieve wet material; and (4) optionally concentrating the crystallized mother liquor, and then returning to the step (1). The preparation method can effectively utilize the molecular sieve mother liquor, saves the cost, is beneficial to environmental protection, and is easy to operate.
Owner:BEIJING RISUN TECH CO LTD

Fluorescent probe for detecting DNA enzyme single-chain hydrolytic activity and application thereof

The invention provides a fluorescent probe for detecting DNA enzyme single-chain hydrolytic activity and application of the fluorescent probe. The fluorescent probe is of a single-stranded DNA structure and contains a fluorophore and a quenching group, and the distance between the fluorophore and the quenching group is 5-15 bp. The fluorescent probe provided by the invention is obtained by simultaneously inserting a fluorophore and a quenching group on the single-stranded DNA and controlling the distance between the fluorophore and the quenching group within the range of 5-15 bp, and the fluorescent probe is applied to detection of the DNA enzyme single-stranded hydrolytic activity. By detecting the fluorescence signal in the detection system, the purpose of detecting the DNA enzyme single-chain hydrolytic activity in the sample to be detected can be achieved. The fluorescent probe provided by the invention can be used for carrying out specific detection on the DNA enzyme single-chain hydrolytic activity, the detection sensitivity is high, the detection ground noise is relatively low, the experimental error is reduced, and the accuracy of the detection result is improved.
Owner:GUANGDONG ARDENT BIOMED CO LTD

Method for preparing yolk shell structure high-entropy phosphide FeCoNiCrMn-P catalyst by using low-temperature phosphating method

The invention relates to the technical field of crossing of material chemistry and water electrolysis oxygen evolution, in particular to a method for preparing a yolk shell structure high-entropy phosphide FeCoNiCrMn-P catalyst through a low-temperature phosphating method. The method comprises the following steps: dissolving a plurality of nitrates in isopropanol and a glycerin solvent to react to obtain high-entropy glycerate; carrying out hydrothermal reaction on the reacted high-entropy glycerate to generate a high-entropy hydroxide; the high-entropy hydroxide and a phosphorus source are subjected to a low-temperature phosphating reaction to generate the high-entropy phosphide catalyst. According to the invention, the reactant FeCoNiCrMn-P with a graded egg yolk shell structure not only exposes more active sites and provides abundant mass transfer channels, but also provides a uniform environment for heterogeneous catalysis, so that OER is promoted. In addition, the shell layer can also play a role of a protective layer, prevents the active components from deforming and dissolving in the catalytic process, and enhances the stability of the active components. When the current density is 10 mA cm <-2 >, the FeCoNiCrMn-P2 has the best OER performance, and the overpotential of the FeCoNiCrMn-P2 is 329 mV, so that the FeCoNiCrMn-P2 has high practical application value.
Owner:SHANGHAI UNIV

Fluorene derivative as well as preparation method and application thereof

Disclosed are a compound of formula (I) wherein two R are the same or different, two R1 are the same or different, and each R and R1 are independently selected from the group consisting of the following unsubstituted or optionally substituted by one, two, three or more Ra: C1-40 alkyl, C2-40 alkenyl, C2-40 alkynyl, C1-40 alkoxy, C1-40 alkylthio, C6-30 aryl, 5-30 membered heteroaryl, or-NRbRc. The compound of the formula (I) can be used as an organic semiconductor material, a material with an amplified self-emission phenomenon and an organic solid laser material, and can be applied to an organic field effect transistor and / or an organic solid laser and / or an organic light-emitting field effect transistor. # imgabs0 #
Owner:INST OF CHEM CHINESE ACAD OF SCI

Negative electrode composite material and preparation method thereof, negative electrode pole piece and sodium ion battery

The invention relates to the technical field of sodium ion batteries, in particular to a negative electrode composite material and a preparation method thereof, a negative electrode pole piece and a sodium ion battery, and the negative electrode composite material comprises a cotton fiber-based carbon material with the surface containing FeP and Fe7S8. The negative electrode composite material provided by the invention has high pore volume, can be used as a sodium ion deintercalation channel, and shows high gram volume and high first coulombic efficiency as a sodium ion battery negative electrode material.
Owner:XIAOGAN CORNEX NEW ENERGY INNOVATION TECHNOLOGY CO LTD

Quasi-solid polymer electrolyte and preparation method thereof

The invention discloses a quasi-solid polymer electrolyte and a preparation method thereof, and belongs to the field of lithium ion batteries. The method comprises the following steps: preparing a polyurethane urea type polymer containing dynamic covalent bonds, setting a time gradient on the basis of the polyurethane urea type polymer through a post-soaking method, and screening out a quasi-solid polymer electrolyte with excellent mechanical properties and ionic conductivity; and fluoroethylene carbonate (FEC) is added into the soaking solution as a stabilizer of the electrolyte, so that the mechanical property and the cycling stability are further improved. The synthesis method of the healable quasi-solid polymer electrolyte capable of balancing toughness and ionic conductivity, provided by the invention, has the characteristics of simplicity and rapidness in operation, high synthesis efficiency, controllable process and low cost, and has a wide application prospect.
Owner:QINGDAO BEIJIAO XINTAI TECHNICAL SERVICE CO LTD

Ethylene-cycloolefin copolymer and preparation method thereof

The present invention relates to the field of olefin copolymerization, and discloses an ethylene-cycloolefin copolymer and a preparation method thereof, the method comprises the following steps: ethylene and cycloolefin are subjected to a copolymerization reaction by using a catalyst composition, and the catalyst composition comprises the following components: a) a metallocene compound having a structure represented by a formula (1); b) a cocatalyst component, in the formula (1), M is a tetravalent transition metal atom; x1 and X2 are respectively and independently a halogen atom, an alkyl group with a carbon atom number of 1-10, an aryl group with a carbon atom number of 6-12 or an N, N-dialkyl amino group with a carbon atom number of 2-8. The method provided by the invention has the advantages of high catalytic activity, good copolymerization performance and high molecular weight of the obtained copolymer, and the catalyst is easy to synthesize and low in synthesis cost. # imgabs0 #
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Colored light conversion material, colored light conversion adhesive film and photovoltaic module

The invention discloses a colored light conversion material, a colored light conversion adhesive film and a photovoltaic module, and the colored light conversion material comprises a compound with a structure shown in the following formula: # imgabs0 #, r1 to R3 and Ra to Rj are each independently selected from the group consisting of H, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted heteroalkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heteroaryl group, a substituted or unsubstituted amino group, a substituted or unsubstituted amide group, a substituted or unsubstituted cyclic imino group, and a substituted or unsubstituted alkoxy group; r1 represents a hydrogen atom, a substituted or unsubstituted carboxyl group, a substituted or unsubstituted ester group, and a substituted or unsubstituted carbonyl group. According to the colored light conversion material, fluorene which is simple in structure, free of heteroatom rings, free of interaction with metal ions and high in luminous efficiency serves as a structural basis, and the applicability is good; the colored light conversion agent is simple in structure, low in synthesis cost, stable in structure and good in application prospect.
Owner:SHANGHAI ZHUYANG NEW ENERGY TECHNOLOGY CO LTD