470 results about "Ionic solution" patented technology

A solid electrolyte thermoelectrochemical system which employs a non-porous solid electrolyte as membrane between an anode compartment and a cathode compartment. The system utilizes the principles of a concentration cell using a non-porous inorganic solid electrolyte membrane and ionic solutions of differing concentration.

A field effect transistor device includes: a reservoir bifurcated by a membrane of three layers: two electrically insulating layers; and an electrically conductive gate between the two insulating layers. The gate has a surface charge polarity different from at least one of the insulating layers. A nanochannel runs through the membrane, connecting both parts of the reservoir. The device further includes: an ionic solution filling the reservoir and the nanochannel; a drain electrode; a source electrode; and voltages applied to the electrodes (a voltage between the source and drain electrodes and a voltage on the gate) for turning on an ionic current through the ionic channel wherein the voltage on the gate gates the transportation of ions through the ionic channel.

The invention relates to the use of arsenic compounds to treat a variety of neoplastic diseases. The present invention encompasses the administration to a mammal of arsenic in the form of a salt, complex, organic compound or ionic solution to treat tumors of epithelial tissue, connective tissue, central nervous system, lymphoid tissue, hematopoietic cells and tumors associated with oncogenic viruses. This invention also encompasses the treatment of hematopoietic disorders in mammals by the administration of one or more arsenic compounds to said mammal. Further, the arsenic compounds may be used to treat metastatic neoplastic diseases.

A system for monitoring a charge-based physiological parameter within an internal organ of a living body, and a sensor adapted to be implanted in the living body and an organ therein. The sensor includes sensing elements adapted to sense the charge-based physiological parameter within the organ, and the sensing elements include at least first and second sensing elements that are electrically conductive, aligned, spaced apart and exposed at the exterior of the sensor. The sensor further includes a device for passing an alternating current from the first to the second sensing elements through an ionic solution contacting the sensing elements. The sensor also includes a device for generating a signal corresponding to the impedance of the ionic solution based on the alternating current.

The invention discloses a nickel-cobalt-aluminum ternary precursor as well as a preparation method thereof and a preparing anode material and a method. The preparation method comprises the following steps: dissolving soluble salts of Ni and Co into ammonia water so as to prepare a Ni and Co ammonia complex ion solution as a complexing agent solution, adding a complexing agent into an aluminum salt solution so as to prepare an Al complex ion solution as an aluminum source solution, combining and adding the Ni and Co soluble salt solution, a precipitant solution, the complexing agent solution and the aluminum source solution into a reaction kettle, controlling a reaction pH value and reaction temperature, controlling the reaction time to be at least greater than 10h, performing solid-liquid separation on slurry obtained through reaction, and washing and drying the obtained solid, thereby obtaining the nickel-cobalt-aluminum ternary precursor. A nickel-cobalt-aluminum ternary anode material can be prepared from a mixture of the precursor and a lithium salt through high-temperature thermal treatment in the presence of air or oxygen. The mixing uniformity of three elements of Ni, Co and Al can be effectively improved, and the tap density of the precursor material can be improved, and the spherical degree of granules can be increased.

A flame retarding polymer electrolyte composition containing maleimides includes a modified maleimide; a lithium salt; and at least one ionic solution in a ratio of at least 2 wt % relative to the total weight of the composition. By using the hyperbranched dendrimer-like structure of the modified maleimide as grafted skeleton for polymer electrolytes, the electrolyte composition can encapsulate an electrolytic solution continuously, thus preventing the exudation of the electrolytic solution and increasing the stability of lithium ionic conduction. Since the ionic solution is nonflammable, the safety of batteries are further enhanced when the polymer electrolyte composition is used as polymer electrolyte for a lithium secondary battery.

The invention provides a self-assembly preparation method of a noble metal-graphene double-layer composite conductive film. The noble metal-graphene double-layer composite conductive film is obtained by taking noble metal ions or complex ions and graphene oxide as raw materials and adopting a solvent-induced self-assembly method. In the method, the thickness of the noble metal layer, the graphenelayer and the overall film of the double-layer composite conductive film can be regulated and controlled through concentrations and volumes of noble metal ionic solution and graphene oxide solution, and the electrical conductivities of the silver layer and the graphene layer in the double-layer composite conductive film can be regulated and controlled. The invention provides a stable and reliablepreparation method of the noble metal-graphene double-layer composite conductive film which can be applied to an electronic device.

The invention relates to a three-way NOx, CO and HC removing catalyst used in a marine engine, and a preparation method thereof. The catalyst takes cerium-tin-tungsten composite oxide as an active component, takes one or more oxides of cobalt, ferrum, nickel, copper, lanthanum, molybdenum, manganese, zirconium, silver and yttrium as a promoter, and takes AlSiTi composite oxide as a carrier. A saturated active component solution, a saturated cobalt promoter ionic solution, strong acid alumina gel, diaspore, clayey, titanium dioxide and an organic forming agent are stirred uniformly, mixed, aged and extruded for formation, and the integral type catalyst is obtained through drying and roasting. According to the invention, the catalyst has high NOx removing efficiency, the active temperature window is wide, and the CO and HC removing efficiency is high in a low-temperature collaborated catalyzing manner. According to the catalyst, as the components of the catalyst are nontoxic and environmental-friendly, the catalyst has the advantages that the mechanical strength is high, the vibration resistance as well as the heat resistance is excellent, the preparation technology is simple, and the cost is low. The three-way NOx, CO and HC removing catalyst is applicable to treatment of NOx, CO and HC in tail gas of a marine diesel engine, and is also applicable to treatment to tail gas of other moving sources diesel engines such as automobiles.

A method for making a layered material can include providing a substrate having a surface with at least one region having a charge and forming layers by sequentially contacting the at least one region with a first solution and a second solution. The first solution comprises a first layering material in an ionic liquid and the second solution comprises a second layering material in a second ionic solution. The first and second layering materials can have a chemical affinity to each other. The first layering material and/or the second layering material can include polyelectrolytes, polymers, carbon nanotubes, or combinations thereof.

The present invention provides a new method and apparatus/system for purifying ionic solutions, such as, for example, desalinating water, using engineered charged surfaces to sorb ions from such solutions. Surface charge is applied externally, and is synchronized with oscillatory fluid movements between substantially parallel charged plates. Ions are held in place during fluid movement in one direction (because they are held in the electrical double layer), and released for transport during fluid movement in the opposite direction by removing the applied electric field. In this way the ions, such as salt, are “ratcheted” across the charged surface from the feed side to the concentrate side. The process itself is very simple and involves only pumps, charged surfaces, and manifolds for fluid collection.

The invention includes novel anion exchange membranes formed by in situ polymerization of at least one monomer, polymer or copolymer on a woven support membrane and their methods of formation. The woven support membrane is preferably a woven PVC membrane. The invention also includes novel cation exchange membranes with or without woven support membranes and their methods of formation. The invention encompasses a process for using the membranes in electrodialysis of ionic solutions and in particular industrial effluents or brackish water or seawater. The electrodialysis process need not include a step to remove excess ions prior to electrodialysis and produces less waste by-product and/or by-products which can be recycled.

The invention relates to a preparation method of an antibacterial silk fibroin fibrous membrane. The preparation method comprises the following steps: dissolving silver salt into water and adding aqua ammonia to form clarifying transparent silver ammino and an ionic solution firstly; adding water-insoluble fatty alcohol, and adopting a microwave irradiation technology to prepare silver nanoparticles; adding the obtained silver nanoparticles into a prepared silk fibroin solution, mixing the obtained silver nanoparticles and the prepared silk fibroin solution, so as to form a spinning solution; then preparing the antibacterial silk fibroin fibrous membrane through a static spinning technology. According to the preparation method provided by the invention, the method is simple, an interface system is regarded as a reaction medium, so that the products can be transferred between different phases, the surface adsorbent can be replaced, and good uniformity of the nanoparticles can be guaranteed; the microwave irradiation technology is adopted, so that the crystallization speed of the products can be improved, the operating steps are simple, the cost is low, the reaction speed is high, the efficiency is high, and a certain universality is provided; the nano-silver has hydrophobicity and can be dispersed into the silk fibroin solution very well, which is further in favor of preparing antibacterial silk fibroin membrane with good uniformity.

The invention relates to a method for constructing a monatomic catalyst based on lignin/metal supramolecular assembly and belongs to the technical fields of preparation method of a catalytic materialand application of lignin. The method mainly comprises the following steps: 1) mixing a lignin and metal ionic solution with a certain concentration uniformly and adjusting the pH to form lignin/metalsupramolecular assembly precipitate; 2) centrifuging and drying to obtain a catalyst precursor; and 3) mixing the precursor and a nitrogen source and performing program high-temperature sintering under the protection of inert gas to obtain the monatomic catalyst. Compared with the prior art, the method has distinct characteristics of low raw material cost (the lignin serves as a ligand and a carrier), simple process (pH regulation and control of the precursor and stripping without acid washing), metal dispersing uniformity (coordinated complexation and increment of defect site regulation andcontrol) and the like, and large-scale production of the monatomic catalyst is easily realized.

A system for removing carbon dioxide from a flue gas stream is provided, the system comprising an absorber vessel configured to receive a flue gas stream, the absorber vessel comprising a first absorption stage configured to receive the flue gas stream and contact it with a first ionic solution, a second absorption stage configured to receive flue gas which has passed the first absorption stage and contact it with a second ionic solution, a first sump vessel, and a second sump vessel. Furthermore, a method for removing CO₂ from a flue gas stream containing CO₂ is provided, the method comprising the steps of a) contacting a flow of a first ionic solution comprising NH₃ with a flue gas stream to remove a first portion of CO₂ from the flue gas stream, b) collecting the used ionic solution from step a) in a first sump vessel, c) recycling ionic solution from the first sump vessel to step a), d) contacting a flow of a second ionic solution comprising NH₃ with the flue gas stream to remove a second portion of CO₂ from the flue gas stream, e) collecting the used ionic solution from step d) in a second sump vessel, and f) recycling ionic solution from the second sump vessel to step d).

The invention relates to a fine well-drilling cuttings oil-abundance analysis method based on nuclear magnetic resonance technology. The method includes the following steps: debugging and calibrating a nuclear magnetic resonance analytical apparatus; making up a rock oil-abundance working curve at target horizon, getting rock cuttings at a reservoir layer without oil gas at the target horizon within the work area and preparing the rock cuttings into a sample mixture of crude oil and cuttings; soaking the sample mixture in water-soluble paramagnetic ion solution; conducting nuclear magnetic resonance analysis; with the intensity of nuclear magnetic resonance signals as the abscissa and the content of crude oil in the sample as the ordinate, drawing a rock oil-abundance working curve of the target horizon; and then calculating the rock oil-abundance data. The method can analyze well-drilling cuttings real-timely, work out the rock oil-abundance data real-timely and carry out quantitative evaluation to the oil-abundance of the reservoir layer, providing real-time technical support to oil exploration, development and production.

A method and apparatus for producing stable plasma inside a solid are provided. According to an embodiment of the method, a source of ionic particles is provided, the source being selected from an ionic solution having a pH less than 1.0, plasma gas, and a gas atmosphere. A direct electrical current is applied to a solid, and the ionic particles from the source of ionic particles are introduced into the solid to form plasma. Periodic impulses are applied to the solid to vibrate the solid and stabilize the plasma.

The invention belongs to the technical field of battery material preparation, and particularly discloses a preparation method of battery-grade anhydrous iron phosphate. The method includes preparing aferrous solution by adopting cold-rolled iron plate leftover materials and/or beneficiation reduced iron powder as an iron source, or preparing a ferrous solution by adopting by-product ferrous sulfate of sulfuric acid method titanium dioxide production; then removing impurities by using a flocculating agent; then oxidizing ferrous ions into ferric ions; mixing the ferric ions with a solution containing phosphate ions; adding a dispersing agent; carrying out crystallization reaction to obtain iron phosphate crystals; subjecting the iron phosphate crystals to drying and roasting to obtain thebattery-grade anhydrous iron phosphate. According to the preparation method, low-cost cold-rolled iron plate leftover materials, beneficiation reduced iron powder or byproduct ferrous sulfate in a sulfuric acid method titanium dioxide production process is used as an iron source for preparation; the flocculating agent is adopted for impurity removal, and then crystallization is performed to prepare the battery-grade anhydrous iron phosphate. The method has the advantages of low raw material cost, high product purity and high tap density, is of a spherical structure, and can be used as a precursor of lithium iron phosphate with high tap density.

A method utilizing charcoal to achieve rural non-point source pollution denitrogenating includes the steps of modifying agricultural wastes in metal ionic solution, achieving air drying for the agricultural wastes for later using, placing the agriculture wastes after air drying in a sealed stainless container, obtaining charcoal through anoxycausis, taking out and smashing the prepared charcoal, burying the charcoal under an agricultural non-point pollution waste water collecting ditch pond, and mixing soil under the ditch pond with the charcoal to enable microbes in the soil under the ditch pond to be attached on the charcoal. When rural non-point source waste water is generated, the waste water is stored in the collecting ditch pond. Accordingly, when the waste water is infiltrated into the soil, ammonia nitrogen is absorbed by the charcoal, and nitrate nitrogen is taken as a slow-release carbon source by the charcoal to achieve denitrification under the function of the microbes in the soil. According to the method utilizing charcoal to achieve rural non-point source pollution denitrogenating, raw material is extensive in source and low in price, and secondary pollution is not generated to the soil due to fact that chemical agent is not added in a whole process. In addition, the operation process is very simple, the requirement for management is low, the quantity of reform for rural local non-point source pollution devices is relatively small, and cost is low.

The invention relates to a nitrated carbon fiber loaded bismuth oxyhalide nanoflower and a preparation method of the nanoflower. The preparation method of the nanoflower comprises the following steps: respectively dissolving a halogenous ionic solution and bismuth nitrate in ethylene glycol monomethyl ether, slowly adding the halogenous ionic solution into a bismuth nitrate solution after the halogenous ionic solution and the bismuth nitrate are fully dissolved in the ethylene glycol monomethyl ether, evenly stirring and mixing the mixed solution, pouring the mixed solution to a high-pressure reaction kettle with a polytetrafluoroethylene liner, then placing nitrated carbon fiber in the kettle, reacting for 0.5-6 hours in a drying oven at the temperature of 150-160 DEG C, naturally cooling and then washing and drying to obtain a product. Through the nitrated carbon fiber loaded bismuth oxyhalide nanoflower, the BiOX is reused and the problem of secondary pollution is solved; ACF (Active Carbon Fiber) is excellent in adsorption property and capable of absorbing organic pollutants and facilitating the photo-catalysis.

The invention relates to detection of heavy metal ions, in particular to a method and a device for detecting low-concentration heavy metal ions. The method comprises the following steps of: inserting an ion selective electrode into a solution containing ions to be detected at high concentration of 10<-2> to 10<-5>M and applying pulse current of -1*10<-4> to -1*10<2> mu A to ensure that two adjacent kinds of high-concentration solution to be detected can achieve a Nernst response, and adhering a polymer sensitive film to the bottom of the ion selective electrode; measuring the Nernst response of the solution containing the ions to be detected at the concentration of below a reference until the lowest detection limit of the ions is reached, wherein a potential value of the solution containing lower-concentration ions to be detected is used as the reference; drawing a standard curve according to the detected value and current and solution concentration values; and measuring the solution containing the ions to be detected at the unknown concentration by a gradually approaching method, and acquiring the concentration of a solution sample according to the applied current, the acquired potential value and the standard curve. By the method and the device, the detection limit of the ion selective electrode is obviously reduced, and the sensitivity of the electrode is improved.

The invention belongs to the technical field of gas purification and relates to a method for removing hydrogen sulfide through an acidic ferric ion solution. The desulfuration solution mainly contains a ferric salt and a heteropolyacid and has an appropriate pH value being 0-6, wherein the heteropolyacid can be represented as a following general formula HaXVbM(12-b)O40. A desulfuration method comprises following steps: (1) oxidizing H2S to form sulfur elementary substance through Fe<3+> in the solution, wherein the Fe<3+> is reduced into Fe<2+>; (2) oxidizing the Fe<2+> into Fe<3+> through air under a catalytic effect of the heteropolyacid; and (3) circulating the solution containing the ferric salt and the heteropolyacid to remove the H2S. The desulfuration solution can oxidize the H2S to the sulfur elementary substance, is easy to regenerate and can be recycle. The desulfuration method is simple in processes, is high in absorption efficiency, is free of side reactions and allows the sulfur to be recovered easily.

The invention discloses a lithium-nickel-cobalt-manganese oxide with excellent temperature characteristics and a high-temperature solid-phase rapid preparation method thereof. The technical problem to be solved is to improve the charge-discharge capacity and cycle performance of positive electrode materials at different operating temperatures and large rates. It mainly includes the following steps: (1) Dissolving lithium salt, nickel salt, cobalt salt, and manganese salt with a solvent; (2) Adding the solution of chelating agent into the cationic solution dropwise to form a colloid, filtering, and drying at 120°C dry to obtain a precursor of lithium nickel cobalt manganese; (3) the obtained sample is subjected to pre-calcination and final high-temperature sintering. The method has the advantages of simple process, mild conditions, easy control of process parameters, high production efficiency, low energy consumption and environmental friendliness.

The invention discloses a Rare earth particle/montmorillonite nanocomposite material and process for preparing, this method depending on surface activator. Self-assembling to produce template, taking polymer monomer as oil phase, Rare earth ionic solution as aqueous phase, mixing them to form contrary Rare earth nano particle, getting Rare earth particle equally dispersed in oil phase, forming thermodynamical steady emulsion system, intercalating the emulsion between layers of montmorillonite, joining initiator, polymer monomer carrying through home position polymerization directly, and then doing microwave radiation, breaking up polymer to CO and H2O, getting Rare earth particle/MMT nanocomposite material.