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352 results about "Binary compound" patented technology

In materials chemistry, a binary phase is a chemical compound containing two different elements. Some binary phases compounds are molecular, e.g. carbon tetrachloride (CCl₄). More typically binary phase refers to extended solids. Famous examples are the two polymorphs of zinc sulfide.

Hydrophobically associating polymer and mixed surfactant binary compound oil displacement system

The invention relates to a hydrophobically associating polymer and mixed surfactant binary compound oil displacement system for use in tertiary oil extraction. The system mainly comprises the following components in percentage by weight: 0.1 to 0.3 percent of hydrophobically associating polymer, 0.1 to 0.6 percent of surfactant and 99.2 to 99.8 percent of water. The hydrophobically associating polymer in the system has high temperature resistance, high salt resistance and viscosity increasing capacity and can largely reduce dosage of polymer; and with high solubilizing capacity, the polymer can increase the dissolution of the surfactant in sewage, thereby increasing the use concentration of the surfactant. The oil displacement system which is dissolved by sewage from extraction can save lots of fresh water; with high viscosity increasing capacity, the system can effectively control flow rate, increase swept volume, increase oil water interface tension to 10<-3>mN / m and increase the oil extraction rate; and because of high stability and injection property, the system can be injected in large dose. According to an indoor oil displacement experiment, the binary compound oil displacement system can improve the extraction rate by over 20 percent compared with that of water displacement. The system without alkali avoids serious damage to the oil layer and corrosion and damage to oilpipes and has a great application prospect.
Owner:SOUTHWEST PETROLEUM UNIV

Novel anti-counterfeit mark and manufacturing method thereof

The invention provides a novel anti-counterfeit mark. The novel anti-counterfeit mark comprises an anti-counterfeit mark base and an invisible anti-counterfeit pattern, wherein the regional difference is formed through micro-nano materials and the anti-counterfeit mark base, so that the invisible anti-counterfeit pattern is formed, the surface of the anti-counterfeit mark base comprises an invisible anti-counterfeit pattern area and a non-pattern area, the invisible anti-counterfeit pattern area or the non-pattern area is composed of a film layer formed on the surface of the anti-counterfeit mark base through micro-nano materials, and the micro-nano materials include organic particles, inorganic particles, photoresist, photosensitive resin, metal, alloy, ceramic, polymer, active micromolecules, an oxide, a sulfide, a nitride and a carbide or a binary compound or polycompound composed of III-V or II-IV or IV-VI elements. According to the novel anti-counterfeit mark, the invisible anti-counterfeit pattern can appear when the anti-counterfeit mark is located at the position of an air blowing opening or encounters with water or steam, the invisible anti-counterfeit pattern can become invisible after water is volatilized, and the anti-counterfeit mark can be used for counterfeit prevention in the fields such as the medicine field, the food safety field and the financial field. The invention further provides a manufacturing method of the novel anti-counterfeit mark.
Owner:SHENZHEN INST OF ADVANCED TECH

Method for synthesizing mono-dispersed multicomponent compound nanocrystals

The invention relates to a method for preparing a compound nanocrystal material for a solar cell, in particular to a novel method for synthesizing mono-dispersed multicomponent compound nanocrystals. The method can be typically applied to synthesis of chalcopyrite compounds, and comprises the following steps of: quickly injecting an oil phase solution containing a sulfur source into 180-280DEG C alcohol phase solution containing a metal source, reacting for 2 to 60 minutes, naturally cooling, and washing to obtain oil soluble multicomponent compound nanocrystal particles with narrow particle size distribution. The invention provides a two phase process for synthesizing the multicomponent compound nanocrystals for the first time. Expensive and toxic organic metals are not needed to be used in the method; and common inorganic metal salt is taken as the metal source, the reaction steps are simplified, the reaction time is greatly shortened, the production cost is reduced and the pollution is lightened, so that the method is an environment-friendly method with universality. Through the method, binary compounds, tertiary compounds, quaternary compounds and even penta-compounds can be synthesized.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Energy-containing film made of aluminum-copper oxide-graphene oxide ternary composite material and preparation method for energy-containing film

The invention discloses an energy-containing film made of an aluminum-copper oxide-graphene oxide ternary composite material and a preparation method for the energy-containing film. The method includes the steps that firstly, a CuO-graphene oxide binary compound is placed in isopropyl alcohol to be ultrasonically dispersed; secondly, aluminum particles and a dispersing agent are ultrasonically dispersed in the isopropyl alcohol to be ultrasonically mixed with dispersing liquid obtained from the first step; thirdly, a product obtained from the second step is centrifuged, washed and dried; fourthly, a material obtained from the third step is placed in a mixed solution of the isopropyl alcohol and N,N-dimethylformamide to be ultrasonically dispersed, and the electric potential is adjusted; and fifthly, the dispersing liquid obtained from the fourth step serves as electrophoretic deposition liquid, a copper sheet serves as a cathode pole piece, stainless steel or a platinum electrode serves as an anode pole piece, electrophoretic deposition is conducted, and the energy-containing film is obtained. By the adoption of the energy-containing film and the preparation method, graphene oxide is introduced into a thermite system, energy released by oxygen-containing groups in the graphene oxide in the thermal deoxidization process is used for further inducing a redox reaction of aluminum and CuO, and therefore energy output by the system is multiplied.
Owner:NANJING UNIV OF SCI & TECH

Gas sensitive material for detecting low-temperature formaldehyde at room temperature and preparation method thereof as well as formaldehyde gas sensor

The invention provides a gas sensitive material for detecting low-temperature formaldehyde at room temperature and a preparation method thereof as well as a formaldehyde gas sensor and belongs to the technical field of gas sensitive sensors. The gas sensitive material is prepared from noble metal nanoparticles and a functionalized graphene binary compound material, wherein the mass ratio of the noble metal nanoparticles to the functionalized graphene binary compound material is 1 to (0.1 to 30); the gas sensitive material can be used for detecting formaldehyde gas with the concentration of ppb grade at room temperature. Therefore, compared with a traditional formaldehyde gas sensitive material, the gas sensitive material and the formaldehyde gas sensor containing the gas sensitive material do not need a high-temperature working environment, so that the power consumption and cost are extremely reduced and resources are saved, and furthermore, the formaldehyde gas sensor has a wider application field. Materials needed by each sensor substrate are relatively less so that the cost of the materials is relatively low and industrialized implementation of the formaldehyde gas sensor can be facilitated.
Owner:苏州慧闻纳米科技有限公司
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