35results about How to "Has potential application value" patented technology

The invention relates to a YSZ-based mixed potential type H2S sensor with inverse spinel type Co2SnO4 as a sensitive electrode and a preparation method of the sensor, and belongs to the technical field of gas sensors. The sensor is sequentially composed of an Al2O3 ceramic plate with a Pt heating electrode, a YSZ substrate, a reference electrode and the sensitive electrode. The sensor is characterized in that the reference electrode is strip-shaped Pt, the sensitive electrode is strip-shaped Co2SnO4, the two electrodes are symmetrically distributed at the two ends of the upper surface of the YSZ substrate, and the lower surface of the YSZ substrate and the Al2O3 ceramic plate are bonded together. According to the sensor, YSZ is used as an ion conducting layer, and the reverse spinel type Co2SnO4 with high electrochemical catalytic activity is used as the sensitive electrode, so that the gas-sensitive performance of the H2S sensor is effectively improved. In addition, the sensor can show obvious response value difference on exhaled gases of healthy people and simulated ozostomia patients, and shows important application potential in the aspect of ozostomia diagnosis in medical diagnosis and treatment.

The invention discloses a high-density MEMS micro-nano coil flexible heterogeneous integration method. The method comprises the steps: preparing and cleaning a rigid substrate; growing a stripping layer on the rigid substrate; depositing a plurality of layers of MEMS micro-nano coils on the stripping layer, depositing a thin film isolation layer between the MEMS micro-nano coils of adjacent layers, interconnecting the plurality of layers of MEMS micro-nano coils, and depositing a thin film insulation layer on the topmost layer; depositing a thin film seed layer on the thin film insulating layer, and then electroplating a metal stress layer; adjusting the thickness of the metal stress layer, and stripping the MEMS micro-nano coil; integrating the MEMS micro-nano coil and the flexible substrate; sequentially removing the metal stress layer and the film seed layer; forming a hole in the thin film insulating layer; and interconnecting and folding the multiple layers of MEMS micro-nano coils. According to the method, the multiple layers of interconnected MEMS micro-nano coils on the rigid substrate are transferred to the flexible substrate through a controllable stripping method, and the flexible substrate is folded to form a multi-layer stacked structure, so that the number of turns of the coils is greatly increased, and the problem of low output voltage of the MEMS electromagneticenergy collector in a narrow space is solved.

The invention relates to new bi-preoxy a vanadium complex that has the constitutional formula of formula 1. The complex molecular formula is C8H17KN3010V, and molecular weight is 405.29. The invention also relates to the potential application in curing diabetes.

The invention provides a method for classifying and extracting xylogen and xylo-oligosaccharide in papermaking black liquid. The method mainly comprises the following steps: diluting papermaking blackliquid, regulating the pH value, ageing, standing, and performing centrifugal separation to obtain centrifugate and a solid precipitate; performing rotary evaporation concentration on the centrifugate, dripping ethanol to precipitate, and performing centrifugal separation to obtain solid xylo-oligosaccharide; purifying and dissolving the solid precipitate with a methanol / acetone mixed solution; dripping an ethyl acetate solvent to precipitate, and performing centrifugal separation to obtain xylogen F1 and centrifugate; performing rotary evaporation concentration on the centrifugate, drippingan ethyl acetate / petroleum ether mixed solution to precipitate, and performing centrifugal separation to obtain xylogen F2 and centrifugate; and performing rotary evaporation concentration on the centrifugate, dripping petroleum ether to precipitate, and performing centrifugal separation, thereby obtaining xylogen F3 and xylogen F4 in the centrifugate. The method disclosed by the invention is capable of realizing classification and separation of xylogen and recycling of the xylo-oligosaccharide in bagasse papermaking black liquid, is wide in application range, simple in process and reliable intechnology and has actual application and popularization value.

The present invention relates to catalysts for the dissociation of hydrogen based on organometallic compounds. According to an example, a catalyst for dissociating hydrogen may include: a support; and a metal organic compound formed on a surface of the support. The catalyst can show good activity to the chemical reaction of dissociation of hydrogen at room temperature, and has potential economic application value.

The invention relates to a metallorganic compound based catalyst used for dissociation of hydrogen. The metallorganic compound based catalyst used for dissociation of hydrogen comprises a carrier, anda metal organic compound formed on the surface of the carrier. The metallorganic compound based catalyst possesses excellent activity on hydrogen dissociation at room temeprature, and possesses potential economic application value.

The invention relates to a preparation method for a cation nanocrystalline cellulose enhanced papermaking surface sizing agent.According to the preparation method, firstly, edible corn starch is gelatinized and compounded with cation styrene-acrylic emulsion; secondly, cation nanocrystalline cellulose is used for enhancing the composite emulsion; lastly, a Mayer coating machine is used for conducting surface sizing on fine dried noodle cardboard paper.According to the prepared surface sizing agent, the edible corn starch and the nanocrystalline cellulose are used as main raw materials, application of synthetic latex cation styrene-acrylic emulsion is omitted, and this conforms to the strategy of sustainable development.The cation nanocrystalline cellulose enhanced papermaking surface sizing agent is simple in preparation process and good in flowing property, a good barrier property is given to the paper, and meanwhile the mechanical property and surface property of the paper can be improved.

The invention discloses a preparation method of [1,2,4]oxadiazinoindoline-3-one derivatives, comprising the following steps: (1) preparing an o-nitrophenylacetylene compound, a catalyst and a first organic After the solvents are mixed, react at room temperature for 3-6h; (2) add α-halogenated hydroxamate compound, sodium carbonate and hexafluoroisopropanol to the material obtained in step (1), and react for 10 h at room temperature ‑12h; or mix o-nitrophenylacetylene compound, catalyst, α‑halogenated hydroxamate compound, sodium carbonate and hexafluoroisopropanol and react at 55‑65°C for 10‑12h. The invention can synthesize [1,2,4]oxadiazinoindoline-3-one derivatives with various substituents which are difficult to synthesize by other methods, and has far-reaching significance from the perspective of organic chemistry.

The invention discloses a preparation method of a symmetric 1,7-dicarbonyl compound. The preparation method comprises a step of implementing free radical reaction on dithiocarbonic acid O-alkyl-S-(2-carboxymethyl) ester and allyl sulfone, allyl sulfoxide, allyl sulfide or allyl mercaptan carboxylate to obtain corresponding symmetric 1,7-dicarbonyl xanthate. The preparation method is simple and easily available in raw materials, convenient to operate, and applicable to mass production. The prepared compound can be used as an important organic and pharmaceutical synthesis intermediate, and the like.

The invention discloses a novel long-chain hydrocarbon and long-chain alkyl polymer phase change system. The novel long-chain hydrocarbon and long-chain hydrocarbon polymer phase change system is composed of a phase change material and a phase building agent, the phase change material is a long-chain hydrocarbon polymer or long-chain hydrocarbon, the phase building agent is nitrogen, inert gas or liquid with the boiling point lower than 90 DEG C, and the volume of the phase change material accounts for 1 / 50-1 / 7 of the volume of the phase change system. The original heating rate of the phase change system is greater than 10 DEG C / min, and the initial pressure in the phase change system is 0.5-4 MPa. The novel long-chain hydrocarbon and long-chain alkyl polymer phase change system provided by the invention realizes a violent self-heat-release effect based on liquid-liquid phase change in a high-pressure atmosphere and a relatively high temperature interval, and discovery of the effect has important significance on long-chain molecule phase change research and has potential application value in many fields.

The invention discloses a functionalized boride-filled silicone rubber-based heat-conducting material and a preparation method thereof. In parts by weight, the formula comprises: 100 parts of silicone rubber base material, 15-23 parts of hydroxyl silicone oil compound, functionalized boride 128 to 174 parts, 0.5 to 1 part of superfine silicon carbide, and 0 to 1 part of nano-tungsten oxide. The present invention uses silicone rubber as the matrix, mixes cubic boron nitride and hexagonal boron nitride with different particle sizes, combines and grinds the boron simple substance, and then disperses the functionalized boride as a heat-conducting filler, and then passes through gamma radiation. Combined, a functionalized boride-filled silicone rubber-based thermally conductive material with excellent performance can be obtained; the composite material not only has excellent thermal conductivity, but also has good mechanical and thermal properties, and can be customized according to actual use scenarios. Tailoring of the shape to batch manufacture complex shapes of thermally conductive device underlayers.

The invention provides a Zintl-phase thermoelectric material with a hexagonal ZrBeSi structure and a preparation method of the Zintl-phase thermoelectric material. The Zintl-phase thermoelectric material has a hexagonal ZrBeSi structure, and the chemical formula of the Zintl-phase thermoelectric material is A2BC2, wherein A is one or a combination of two of elements Eu and Sr, B is an element Zn or a combination of Zn and a first doping element, and C is one or a combination of two of elements Sb and Bi; or the chemical formula of the Zintl-phase thermoelectric material is DEF, wherein D is one or a combination of more than two of elements Eu, Sr, Ba and Ca, B is one or a combination of more than two of elements Cu, Ag or Au, and C is one or a combination of two of elements Sb and Bi. Theinvention discloses a novel thermoelectric material, and the thermoelectric figure of merit of the thermoelectric material is close to the matrix performance of the current mainstream thermoelectric material. In addition, the compound can realize higher thermoelectric figure of merit after doping regulation and control, and has certain potential application value.

An inverse spinel Co 2 SnO 4 YSZ-based mixed potential type H for sensitive electrodes 2 An S sensor and a preparation method thereof belong to the technical field of gas sensors. The sensor in turn consists of an Al with a Pt heating electrode 2 o 3 Composed of ceramic plate, YSZ substrate, reference electrode and sensitive electrode. It is characterized in that: the reference electrode is strip-shaped Pt, and the sensitive electrode is strip-shaped Co 2 SnO 4 , two electrodes are symmetrically distributed on both ends of the upper surface of the YSZ substrate, and the lower surface of the YSZ substrate is connected with Al 2 o 3 The ceramic plates are bonded together. In the present invention, YSZ is used as the ion-conducting layer, and the inverse spinel-type Co with high electrochemical catalytic activity is utilized 2 SnO 4 As a sensitive electrode, it effectively improves the H 2 The gas sensing performance of the S sensor. In addition, the sensor can show a significant difference in response to the exhaled breath of healthy people and simulated halitosis patients, showing important application potential in the diagnosis of halitosis in medical diagnosis and treatment.

The present invention discloses an amido reinforced graphene film, a nitrogen doped graphene film and a preparation method thereof. The method includes the following steps: extruding a graphene oxide solution by a device with an in-line die orifice nozzle; staying, solidifying and reducing in a mixed liquid of liquid amine solidification liquid and a reducing agent for self-assembly into a film, and drying, wherein the temperature of the mixed liquid is 60-95 DEG C, and the stay time is more than 0.5 h. The method has the wide raw material sources and low cost; the preparation method uses graphene oxide solution as raw material, realizes solidification, reduction and self-assembly into amido reinforced graphene film through one step, has the advantages of low reaction temperature, simple operation, green and environment-friendliness, and can realize large-scale continuous preparation. The amido reinforced graphene film prepared by the method has good strength and toughness, excellent thermal conductivity and electrical conductivity, and broadens the scope for subsequent application. The amido reinforced graphene film can increase the electrical conductivity and mechanical properties of the film.

The invention discloses a method for preparing a comby stannous oxide nanometer material. The method comprises the following steps of: putting stannous chloride dehydrate in a hexadecyl trimethyl ammonium bromide aqueous solution under the condition of stirring by adopting a hydro-thermal synthesis method to obtain a mixed solution; then, dropwise adding a sodium hydroxide aqueous solution to the mixed solution; stirring to obtain a final mixed solution, wherein in the final mixed solution, the molar concentration of the stannous chloride dehydrate is controlled to be between 0.10mol / L and 0.15mol / L, and the molar ratio of the stannous chloride dehydrate to hexadecyl trimethyl ammonium bromide to sodium hydroxide is 1:1:(2-4); putting the final mixed solution in a reaction kettle, wherein the degree of filling is 80-90 percent, and performing a hydrothermal reaction for 12-15h at the temperature of 120-160 DEG C; and performing centrifugation, washing and drying on the obtained product to prepare the comby stannous oxide nanometer material. The prepared comby stannous oxide nanometer material has an even porous structure and can be applied in the aspects of lithium ion battery anode materials, chemical synthesis catalysts and the like. The method disclosed by the invention has the characteristics that the operation is simple, the cost is low, the pollution is low and industrial large-scale production can be easily realized.

The invention discloses a method for preparing a polyester-cotton fabric conductive material modified by a metal-organic framework compound. and carboxylation, followed by washing and drying; (2) adding metal salt solution and organic ligand solution to the fabric obtained in step (1), washing and drying after activation in a solvent; (3) adding step (2) The obtained fabric is immersed in an alkaline solution to obtain the metal organic framework compound modified polyester-cotton fabric conductive material. The method of the invention is simple and the conditions are mild, and the metal organic framework compound modified polyester-cotton fabric flexible conductive material with good elasticity and stretch resistance can be prepared.

The invention relates to a sulfonated aromatic phosphine oxide polymer containing hydroquinone and a preparation method and application thereof, the structural general formula of the polymer is as follows, wherein M = Li, Na, K, Rb or Cs; when m = 1, the polymer is a homopolymer containing triphenylphosphine oxide and hydroquinone; when m = 0, the polymer is a homopolymer containing triphenylphosphine oxide and sulfonated dihydroxyl monomers; when 0 < m < 1, the polymer is a copolymer containing triphenylphosphine oxide, a sulfonated dihydroxyl monomer and hydroquinone; n is a repeating unit, and n is an integer greater than or equal to 10. Compared with the prior art, a hydroquinone sulfonate structure which is cheap, easy to obtain and easy to treat and purify is introduced into an aromatic phosphine oxide polymer main chain, and the proton exchange membrane material which is good in performance and low in price and has potential application value is prepared on the premise that the phosphine oxide structure is kept.

The invention discloses an antibody type molecular chaperone capable of inhibiting Tau protein from being aggregated. The antibody type molecular chaperone scFv T1 can effectively inhibit Tau aggregation, is strong in specificity, high in efficiency and low in toxicity and easy to eliminate in the body, and has the advantages of being humanized, convenient for antibody screening, easy to prepare and the like compared with monoclonal or polyclonal antibody prepared by using the traditional method; compared with common immune globulin, the single-stranded antibody has smaller molecules, is easier to express in animal cells in-vitro or in-vivo cultured in model organism, can break through blood brain barrier, has low toxic and side effects, cannot cause immunoreactions easily, can facilitate the research on cell and animal levels and the clinical treatment and applications of Alzheimer disease, thus providing a new direction for treatment of Alzheimer disease, and having potential application values for treating AD, and good medical application prospects.

The present invention relates to a 4-phenyl-6H-1,3-oxazine-6-one derivative and its preparation and application. The present invention provides a class of 4-phenyl-6H-1,3-oxazine-6-one derivatives as shown in formula (III), the preparation method has mild conditions, simple and safe operation, high yield, and The 4-phenyl-6H-1,3-oxazine-6-one derivatives obtained in the present invention have aggregation-induced emission (AIE) properties and can be applied to the field of optoelectronics.

The invention belongs to the field of nanotechnology and relates to a gold nano-modified protein-FeS 2 Preparation of bioconjugated nanofibers and their use in bacterial inhibition. Specifically, dopamine was modified to bovine serum albumin by covalent coupling and used as a template to regulate protein assembly through the coordination of ferrous ions and the cross-linking effect of sulfide ions to prepare metal sulfide-induced biocrosslinking. protein nanofibers. The gold nanoparticles are modified on the surface of the protein nanofibers through the affinity between the sulfhydryl groups of the protein and the gold ions. The diameter of the nanofiber is about 2 μm. The invention prepares gold nano-modified protein-FeS2 biocoupled nanofibers, wherein the molar ratio of bovine serum albumin: ferrous ion: gold ion is 2:3:10, has good photothermal performance and can be used for the inhibition of bacteria.