75 results about "Adsorbed molecule" patented technology

A method for forming a film on a patterned surface of a substrate by atomic layer deposition (ALD) processing includes: adsorbing onto a patterned surface a first precursor containing silicon or metal in its molecule; adsorbing onto the first-precursor-adsorbed surface a second precursor containing no silicon or metal in its molecule; exposing the second-precursor-adsorbed surface to an excited reactant to oxidize, nitride, or carbonize the precursors adsorbed on the surface of the substrate; and repeating the above cycle to form a film on the patterned surface of the substrate.

A method for forming a film on a patterned surface of a substrate by atomic layer deposition (ALD) processing includes: adsorbing onto a patterned surface a first precursor containing silicon or metal in its molecule; adsorbing onto the first-precursor-adsorbed surface a second precursor containing no silicon or metal in its molecule; exposing the second-precursor-adsorbed surface to an excited reactant to oxidize, nitride, or carbonize the precursors adsorbed on the surface of the substrate; and repeating the above cycle to form a film on the patterned surface of the substrate.

A method for making the microporous carbon with modified pore size distribution and advanced sorption behaviour. The carbon is derived from metal or metalloid carbides. The method employs the use of oxidant in reaction medium that during the carbide conversion into carbon widens small micropores, which otherwise would be hardly accessed by sorbing molecules or ions in practical applications. The microporous carbon obtained is free of impurities and possesses extremely narrow pore size distribution.

A system for beam-induced deposition or etching, in which a charged particle or laser beam can be directed to a work piece within a single vacuum chamber, either normally incident or at an angle. Simultaneously with beam illumination of the work piece, a deposition or etch precursor gas is co-injected or premixed with a purification compound and (optionally) a carrier gas prior to injection into the process chamber. The beam decomposes the deposition precursor gas to deposit a film only in areas illuminated by the beam, or decomposes the etch precursor gas to etch a film only in areas illuminated by the beam. Undesired impurities such as carbon in the deposited film are removed during film growth by interaction with adsorbed species on the work piece surface that are generated by interaction of the beam with adsorbed molecules of the film purification compound. Alternatively, the film purification compound can be used to inhibit oxidation of the material etched by the etch precursor gas. By co-injecting or premixing the deposition or etch precursor gas and film purification compound prior to injection, the deposition or etch process may be optimized with respect to growth / etch rate and achievable material purity.

The invention relates to the fields of mixed gas separation and feed gas purification, and discloses a gas separation adsorbent for a pressure swing adsorption process. The adsorbent at least comprises an active ingredient, a carrier with high specific surface area for loading a copper compound, or a mixture of one of the active ingredient and the carrier and one of A type, X type, Y type, ZSM type, mordenite and aluminum phosphate molecular sieves, wherein the active ingredient is a cuprous compound or a divalent compound; the carrier with high specific surface area carrier is a small grain Y type or nano Y type molecular sieve; and the cuprous compound or the divalent compound accounts for 10 to 60 percent of the total weight of the adsorbent. In the invention, the small grain or nano carrier with high specific surface area is used to improve the distribution of a pore channel of the active ingredient, shorten the movement distance of an adsorbed molecule in the pore channel and increase the adsorption and desorption rate of the adsorbent, so that the adsorption depth is increased greatly, each gram of molecular sieve can adsorb 5.0mmol of molecules, and finally the aim of high-efficiency separation is fulfilled.

A device and method of detecting surface plasmon resonance for sensing molecules or conformational changes in molecules with high resolution and fast response time is disclosed. Light from a light source (14) is focused through a prism onto a metal thin film (15) on which sample molecules to be detected are adsorbed. The total internal reflection of the laser / incident light is collected with a differential position or intensity sensitive photo-detecting device instead of a single cell or an array of photo-detectors (12) that are widely used in previous works. The ratio of the differential signal to the sum signal of the differential position or intensity sensitive photo-detecting device (12) provides an accurate measurement of the shift in the surface plasmon resonance angle caused by the adsorption of molecules onto the metal films (15) or by conformational changes in the adsorbed molecules. The present invention requires no numerical fitting to determine the resonant angle and the setup is compact and immune to background light, The methods and sensors of this invention can be used in numerous biological, biochemical, and chemical applications such as measuring subtle conformational changes in molecules and electron transfer reactions can be studied.

A hydrocarbon adsorber and a thermoplastic resin combined and formed to a porous scavenger for insertion into the air intake system of a motor vehicle engine. The resulting porous scavenger adsorbs volatile hydrocarbon molecules from raw fuel remaining in the air intake when the engine is shut off. The adsorbed molecules are then stripped or purged from the scavenger and reintroduced into the air intake when the engine is next started.

A biporphyrin-metal coordination compound with bridged face-face structure is prepared by simulating biologic enzyme catalyst. It is the nitrogen-contained large-ring metal match with two catalytic activity centers for absorbing both ends of molecular oxygen, and can be used as catalyst of the cathode of methanol fuel battery.

The invention discloses a novel enhanced Raman micro-needle with inbuilt enhanced layers. The novel enhanced Raman micro-needle comprises a needle handle, a needle body and a needle tip, which are connected sequentially from top to bottom, wherein a group of micro-holes are formed in the surfaces of the needle body and the needle tip; a metallic nano material layer covers the inner wall of each micro-hole. Compared with a conventional SERS (Surface Enhanced Raman Scattering) active micro-needle, the novel enhanced Raman micro-needle has the advantages that enhanced Raman layers are inbuilt, and macromolecule coating layers are not needed, so that the attenuation of a signal can be avoided, and the adverse effects on an organism caused by heat source substances contained in macromolecule layers are further avoided. Compared with existing surface enhanced Raman materials, the enhanced Raman layers of the novel enhanced Raman micro-needle are only gathered in the micro-holes, the dimensions of the micro-holes and the sizes of detected laser light spots are in the same order of magnitude, and most of adsorbed molecules are effective detection molecules, so that the analysis sensitivity is further improved favorably.

The invention provides a preparation method of a methacryloxyethyltrimethyl ammonium chloride based anionic dye absorbent, and belongs to the technical field of a composite. Acrylamide and methacryloxyethyltrimethyl ammonium chloride are taken as polymerization monomers, palygorskite clay is taken as inorganic filler, and the methacryloxyethyltrimethyl ammonium chloride based anionic dye absorbent is prepared through free radical polymerization under the existence of a crosslinking agent and an initiator. According to the preparation method, formation of a polymer and a spatial network structure of the polymer are adjusted through a special structure on the surface of the palygorskite clay, so that gaps among molecules are effectively enlarged, and the absorption property is improved. An experiment proves that the prepared absorbent has a good absorption property on anionic dye.

The present invention is a multidimensional integrated detection and analysis system (MIDAS) for any gas or fluid that transfers or accepts electronic charge (including but not limited to CH4, CO2, CO, NOx, SOx, H2O, NH3, NHx). MIDAS allows for the development of a highly sensitive, selective, and expedient sensor platform capable of uniquely identifying adsorbed molecules based on simultaneous measurement of truly orthogonal responses based on work function (φ), capacitance (C), and / or conductance (σ) changes.

A fuel cell electrode material comprising a porous body, and having an adsorption ability of the order of 0.1 to 10×10−6 mol / m2 for each of methane, carbon monoxide, and hydrogen gases when the adsorption ability is expressed by the number of adsorbed molecules (mol) / the unit area (m2) of the porous body, and a solid oxide fuel cell battery comprising a fuel cell which comprises a solid electrolyte base, a fuel electrode formed on a fuel compartment side of the base, and an air electrode formed on an air compartment side of the base, wherein the fuel electrode is formed from the electrode material of the present invention.

The invention relates to a preparation method for a metallocene-containing porous polymer material. The method comprises the main steps that with a metallocene compound or a mixture of the metallocenecompound and an aromatic compound as a raw material, under the function of a Lewis acid catalyst, the metallocene-containing porous polymer is prepared through a Friedel-Crafts reaction. The preparedmetallocene-containing porous polymer material is adjustable in pore size, pore volume and specific surface area, an obtained porous network is formed by connecting covalent bonds, and the material has good chemical stability and thermal stability. By introducing metal and heteroatoms to the porous polymer network, the interaction force of a polymer framework and adsorbed molecules can be increased, and the adsorption amount and speed of carbon dioxide, methane, hydrogen, sulfur dioxide, dyes and the like are increased.

A method of removing first molecules adsorbed on the surfaces of a chamber and / or at least one object found in the chamber is provided. Second, polar molecules that have a desorptive effect on the first molecules are introduced into the chamber. The second molecules comprise nitrogen and hydrogen, and especially NH3 molecules.

The invention discloses a super-crosslinked polymer material and a preparation method thereof. The preparation method comprises the following steps of by taking phenethyl alcohol as a monomer, dimethoxymethane as an external crosslinking agent and ferric trichloride hexahydrate as a catalyst, performing synthesis at a certain temperature to prepare a crude brown solid product, and then performingpurification with anhydrous ethanol, washing with hot water, filtering and freeze drying on the obtained crude brown solid product to obtain the super-crosslinked polymer material. For the super-crosslinked polymer material and the preparation method, by integrating the advantages of a one-step self-condensation method and an external crosslinking method, the size of molecules which can be adsorbed by the super-crosslinked polymer material is increased, the flexibility of the material is improved, and the super-crosslinked polymer material has good adsorption ability to VOCs; and in addition,the super-crosslinked polymer material is simple in preparation technology and low in energy consumption, does not cause secondary pollution and can be applied to adsorption treatment of the VOCs as anovel adsorbent.

A novel carbon nanohorn adsorbent which does not necessitate a high-temperature treatments lightweight and chemically stable, and can selectively adsorb molecules based on the molecular sieve effect; and a process for producing the adsorbent. The process comprises oxidizing a single-wall carbon nanohorn aggregate while controlling oxidative conditions to thereby obtain the carbon nanohorn adsorbent, which have, in the tubular parts, pores having a regulated diameter.

The invention relates to a surface analysis device for realizing interconnection under an ultrahigh vacuum condition (2*10<-10> mbar), a use method of the surface analysis device and a sample table for the surface analysis device. The sample table for the surface analysis device comprises (1) a programmed temperature rise clamping plate for bearing a sample support to realize linear controllable temperature rise (3-4K / s) of a sample from a low-temperature end to a high-temperature end (100K-1000K); (2) a variable temperature rod for butting a sample support clamping plate, and cooling the sample table through liquid nitrogen; (3) a sample support suitable for a single crystal sample with the thickness of 0.5-1.5 mm, wherein direct current heating is carried out on the sample, and the sample support is compatible with the requirements of a scanning tunneling microscope imaging sample support; and (4) a high-temperature clamping plate for raising the temperature of a common sample support in a radiation, heating electron beam heating or direct-current heating mode. The surface analysis device is suitable for a vacuum interconnection system of a temperature programming desorption instrument and a scanning tunnel microscope, morphology information of a model catalyst and spectrography and reaction activity information of adsorption molecules are obtained, and association of the structure and activity of the catalyst is achieved on the atomic scale.

The invention discloses a wear-resistant metal nickel ceramic coating layer for a pot; a ceramic coating layer prepared by selecting metal nickel as a metal base and adopting boron oxide, antimony trioxide and other refractory substances as a ceramic phase is coated on a substrate metal surface; an alloy element in the substrate metal can be spread to an interface and generates NiO+M->MO+Ni and other interface reactions with NiO and other substances in the coating layer; reduced and precipitated active nickel atoms and the substrate metal M form Ni-M metallic bonds, and thus the adherence between the metal ceramic coating layer and the substrate metal is improved, rare earth nano cerium dioxide can strengthen interaction with atomic orbits among adsorbed molecules due to active high energy, and the wear resistance of the product is improved; an added iron powder and nickel powder are combined to enhance the permeability of the coating layer; the method is simple to operate and high in efficiency, and the ceramic coating layer is long in life and not easy to damage.

The invention relates to a 13X-type zeolite-activated carbon composite material and a preparation method thereof. The grain size of the composite material is a porous structure being 1-2microns, and the pore size is 0.8-1 nanometer. The 13X-type zeolite-activated carbon composite material prepared by the invention has micro-porous and mesoporous composite pore structure characteristics and simultaneously has hydrophilcity, lipophilicity and ion exchange property. Compared with an adsorbent prepared from single-function activated carbon or coal ash, the composite material has high adsorption performance, and large-molecule polar or non-polar contaminants can be adsorbed.

A method for making the microporous carbon with modified pore size distribution and advanced sorption behavior. The carbon is derived from metal or metalloid carbides. The method employs the use of oxidant in reaction medium that during the carbide conversion into carbon widens small micropores, which otherwise would be hardly accessed by sorbing molecules or ions in practical applications. The microporous carbon obtained is free of impurities and possesses extremely narrow pore size distribution.

This invention relates a biomarker detection system, for detecting cancer biomarkers using optical heterodyning. The system includes a tunable laser configured to produce a plurality of laser beams of at least two frequencies, a pair of optical fibers coated with gold nanoparticles and functionalized with an antibody is configured to undergo a change of fiber surface of each optical fiber by adsorbing molecules of an analyte on a surface of the antibody, modify a reflection of the plurality of laser beams inside a fiber core of the each optical fiber when the each optical fiber is bent, and create an audible beat frequency; and perform spectral analysis. A frequency spectrum analyzer configured to provide a composition information of the adsorbed molecules based on a spectral analysis of the beat frequency.

The invention discloses an online molecular detector based on D-shaped optical fibers and nano-ring cavities and a making method of the molecular detector. The main structure of the detector comprisesan asymmetrical nano-ring cavity array, lateral D-shaped optical fibers and an optical fiber connector. The nano-ring cavity array is processed on the lateral surface of the lateral D-shaped opticalfibers, and the ring cavity is formed by semiconductor gain materials and metallic materials alternately, so that the surface plasmon signal intensity is improved, and the plasmon wavelength on the cylindrical surface is modulated. Meanwhile, the structural design in the ring cavity is asymmetrical, so that the polarization sensitivity is realized; and the cavity surface is subjected to isolatingprotection by a 5nm dielectric layer. Exciting light comes into one end of the D-shaped optical fibers, and the surface plasmon effect in the metal ring cavity is excited, so that the electric field intensity in the ring is obviously enhanced; and therefore, the SERS (Surface Enhanced Raman Scattering) signal of adsorbed molecules on the metal ring surface is excited, and the signal is coupled into the D-shaped optical fibers and received by the other end of the optical fibers. The molecular detector formed in the invention is capable of realizing online monitoring and is applicable to trace monitoring.

The invention discloses a PH response type degradable intelligent corrosion inhibitor, a preparing method and application of the PH response type degradable intelligent corrosion inhibitor, and belongs to the technical field of metal material corrosion preventing. The preparing method of the PH response type degradable intelligent corrosion inhibitor comprises the steps that terephthalaldehyde andaminopropyltriethoxysilane are utilized for preparing an imidogen bridging silane precursor, and evaporation is conducted after filtering and pressure control; the imidogen bridging silane precursorand ethyl orthosilicate serve as a silicon source and are slowly dripped in cetyl trimethyl ammonium bromide and NaOH mixing system to be reacted, the cetyl trimethyl ammonium bromide serves as a template to prepare organic silicon nanospheres; a surface active agent is removed, and mesoporous organic silicon nanospheres are obtained; adsorption molecules MBT are dissolved in ethyl alcohol, and asaturated MBT ethyl alcohol mixed solution is obtained, then, the saturated MBT ethyl alcohol mixed solution is injected into a reactor containing the pre-degassed mesoporous organic silicon nanospheres, and the PH response type degradable intelligent corrosion inhibitor is obtained through the reaction. The preparing method is simple and easy to implement, and meanwhile a new thought is providedfor oil field intelligent corrosion preventing.

The invention discloses a metal nickel ceramic coating good in high-temperature-cracking-resistant peeling capacity. Metal nickel is selected as a metal base. The surface of base metal is coated with a coating manufactured with barium oxide, alumina and other refractory materials as the ceramic phase. Alloy elements in the base metal will be diffused to an interface and have a reaction that NiO and M react to produce MO and Ni and other interface reactions with NiO and other matter in the coating, precipitated active nickel atoms and the base metal M are reduced to form Ni-M metallic bonds, and therefore the adherence between the metal ceramic coating and the base metal is improved; rare earth nano cerium dioxide is high in activity, and therefore the interaction between atom orbits of adsorbed molecules can be enhanced, and the reactions are promoted; and added iron powder and added nickel powder are combined so that the permeability of the coating can be enhanced. According to the metal nickel ceramic coating, an effective solution is provided for improving the high-temperature-cracking-resistant peeling capacity of metal ceramic coatings. A method is easy to operate and high in efficiency, and the service life of the coating can be longer.

A device and method of detecting surface plasmon resonance for sensing molecules or conformational changes in molecules with high resolution and fast response time is disclosed. Light from a light source (14) is focused through a prism onto a metal thin film (15) on which sample molecules to be detected are adsorbed. The total internal reflection of the laser / incident light is collected with a differential position or intensity sensitive photo-detecting device instead of a single cell or an array of photo-detectors (12) that are widely used in previous works. The ratio of the differential signal to the sum signal of the differential position or intensity sensitive photo-detecting device (12) provides an accurate measurement of the shift in the surface plasmon resonance angle caused by the adsorption of molecules onto the metal films (15) or by conformational changes in the adsorbed molecules. The present invention requires no numerical fitting to determine the resonant angle and the setup is compact and immune to background light, The methods and sensors of this invention can be used in numerous biological, biochemical, and chemical applications such as measuring subtle conformational changes in molecules and electron transfer reactions can be studied.

The invention provides a preparation method of a hollow nano bowl-shaped structure, a nano material and application. Firstly, a hollow copper nano bowl-shaped structure is obtained through magnetron sputtering and plasma etching, light is irradiated on the hollow copper nano bowl, the chemical interaction between adsorption molecules and the metal surface can be enhanced, comprising chemical bond enhancement, surface hybridization resonance enhancement, phonon-induced charge transfer enhancement and the like. The composite nano structure grows on a silicon wafer, local surface plasmon polaritons on the composite structure are excited through light irradiated on the composite structure, and transfer of charges in the nano structure is accelerated through hot electrons, hot holes and chemical energy excited by metal local surface plasmon polaritons, so that the catalytic efficiency is improved, and the catalysis of CO2 is enhanced through the surface plasmon polariton effect of gold and copper. The preparation cost is low, the preparation process is simple, and the method can be effectively copied and applied on a large scale.

The invention provides a method of preparing a biological components-containing solution suitable for clinical proteome analysis by mass spectrometry, electrophoresis, liquid chromatography or the like and an apparatus for the method. The method of the invention is a method for combining two steps among steps of (1) adsorbing proteins having a molecular weight equal to or higher than that of albumin; (2) fractionating proteins having a molecular weight equal to or higher than that of albumin; and (3) concentrating proteins: or a method for preparing the solution by separation using a membrane separation unit having a comparative permeation ratio of 50 or higher for proteins with a molecular weight less than 15,000 and proteins with a molecular weight of 60,000 or higher; or a method for preparing the solution by introducing a biological components-containing raw solution into a separation membrane module and successively passing a diluting solution for circulating the solution and passing a portion of the solution through a separation membrane.

It is intended to provide a functional molecular element having a specific conductivity, which is a functional molecular element having a structure enabling reduction in the contact resistance at the interface between a constituting molecule and an electrode, a process for producing the same and a functional moleucalr device. A n-electron conjugated molecule (1), which is one species of linear tetrapyrrole having an almost disc-shaped central skeleton (2) and a flexible side chain (3) consisting of an alkyl group, is dissolved in 4-pentyl-4'-cyanobiphenyl or tetrahydrofuran and the concentration is adjusted to an appropriate level. This solution is adhered to electrodes (5) and (6) and the solvent is evaporated. Thus, an array structure (4) of the n-electron conjugated molecule (1) is self-organizingly formed. An adsorbed molecule (9) in the first layer of the array structure (4) is fixed in such a manner that its side chain (3) is adsorbed on the surface of the electrode (5) or (6) while the almost disc-shaped face of the sekeleton (2) is adhered in parallel to the surface of the electrode (5) or (6). The stacking direction of the n-electron conjugated molecule (1) in the second layer and thereafter of the array structure (4) is regulated by the n-n interaction between the disc-shaped face of the sekeletons (2).

The invention provides a preparation method and application of a non-metal water-soluble heavy metal adsorbent based on reversible phase transition. The preparation method of the adsorbent comprises the steps of (1) uniformly mixing melamine and an alkaline substance; (2) heating the mixture in the step (1) to the temperature of 250-600 DEG C, keeping the temperature for 1-5 hours, and cooling to room temperature; and (3) dissolving the solid obtained in the step (2) in ultrapure water, dialyzing in the ultrapure water through a dialysis bag, and drying the liquid in the dialysis bag to obtain the adsorbent. According to the technical scheme, raw materials are cheap and easy to obtain, the preparation process is simple, and secondary activation and other steps are not needed. The adsorbing material has a reversible phase inversion function which is not possessed by other adsorption materials. In addition, the mass transfer rate of an adsorption micro-interface is greatly improved, and the interface action between molecules and ions adsorbed in water is enhanced. No metal ion is needed in the preparation process of the adsorbing material, so that the adsorbing material is environment-friendly.

The invention discloses a nano hollow CuS@Ni(OH)2 double-layer structure composite cube. An internal hollow structure is constructed by using CuS nanosheets, and an external hollow structure is constructed by using Ni(OH)2 nanoparticles; and the preparation method is simple and easy to operate, short in reaction period, environment-friendly and low in cost. The synthesized CuS / Ni(OH)2 composite material is uniform in particle size, stable in structure and reliable in performance. The double-layer hollow structure can increase the specific surface area of the material, more catalytic active sites are exposed, and electrocatalytic oxidation-reduction reaction of adsorption molecules on the surface of an electrode is facilitated.