39 results about "Ionic transfer" patented technology

The invention belongs to the technical field of electrode material preparation, and particularly relates to a uniformly dispersed ultra-small metal nanoparticle material and a dispersion method thereof. According to the present invention, the reduced graphene oxide is used as a substrate, and the uniformly dispersed ultra-small metal nanoparticle material is obtained through the freeze drying andcalcining processes. According to the invention, the ultra-small metal nanoparticles can be uniformly dispersed on the three-dimensional graphene porous foam substrate, the porous foam structure is beneficial to ion transfer and electrolyte diffusion, so that the utilization rate of the active material can be improved; the graphene substrate effectively prevents agglomeration among nanoparticles,the structural stability of the electrode material is kept, and the volume expansion of the active material in the charging and discharging process is relieved, so that the cycling stability of the electrode material is improved.

The invention relates to hydrated ionic liquid gel and a preparation method and application thereof. The hydrated ionic liquid gel is prepared through the following method that when gel is prepared through enzymatic gelling, hydrated ionic liquid serves as a solvent, contains organic substances of anions and cations and follows the Huffman ion effect, and the hydrated ionic liquid gel is preparedthrough a hydrothermal method. The hydrogel can be used as a protective agent to stabilize a hydration layer of an enzyme, and has good biocompatibility. Compared with the prior art, the preparation process is mild and efficient, materials are environmentally friendly, and the prepared bioelectronics platform has enzymatic electron transfer and ion transfer capacity and can be widely applied to bioelectronics devices such as glucose sensors, motion sensors and energy storage devices.

The invention relates to an exchange and concentration method for ions in a solution. According to the invention, separation of substances in a solution and an exchange reaction of ions in the solution are realized by combining an anionic membrane and a cationic membrane and providing a channel for ion transfer. The method realizes seawater desalination and recycling and harmless treatment of wastewater under the action of different displacement solutions; and the method is widely applicable to sewage treatment, to ion concentration, deacidification, dealkalization, desalination and saline water desalination in the process of industrial production, to production of sylvite and to mutual conversion between acid and alkali salts.

A method is disclosed for concentrating and purifying an eluate brine and producing a purified lithium compound. An extraction eluate, rich in lithium, is directed to a nanofiltration unit or a softening process that removes sulfate and / or calcium and magnesium. Permeate from the nanofiltration unit or the effluent from the softening process is directed through an electrodialysis unit. As the lithium-rich solution moves through the electrodialysis unit, lithium, sodium and chloride ions pass from the solution through a cation-transfer membrane and an anion-transfer membrane to concentrate compartments. A dilute stream is directed through the concentrate compartments and collects the lithium, sodium and chloride ions. The electrodialysis unit also produces a product stream which contains non-ionized impurities, such as silica and / or boron. Concentrate from the electrodialysis unit is subject to a precipitation process that produces a lithium compound that is subsequently subjected to a purification process.

Apparatus and method for detecting current or potential generated in a liquid sample suitable for use in a chromatography or other liquid sample analytical system. One embodiment is an electrolytic ion transfer device with a signal detector in communication with the electrodes of the transfer device. Another is a combination ion transfer device / electrolyte generator. Another substitutes a detector for the ion transfer device in the combination.

Provided is a thin-film laminate structure of mixed ionic-electronic conductive electrolyte and electrode which, when used as a solid oxide cell electrolyte, enables the ionic transference number to be increased even without using a costly noble metal. The laminate structure of mixed ionic-electronic conductive electrolyte and electrode comprises a dense electrolyte layer (1), a porous electrolyte layer (2), and a porous electrode (3). The dense electrolyte layer (1) has a film thickness of 1 to 15 μm and a relative density of 95 to 100 vol %, and contains a first oxide having mixed ionic-electronic conductivity. The porous electrolyte layer (2) is laminated on the dense electrolyte layer (1), has a film thickness of 1 to 10 μm and a relative density of 30 to 90 vol %, and contains a second oxide having mixed ionic-electronic conductivity. The porous electrode (3) is laminated on the porous electrolyte layer.

Memristive devices based on ion-transfer between two meta-stable phases in an ion intercalated material are provided. In one aspect, a memristive device is provided. The memristive device includes: a first inert metal contact; a layer of a phase separated material disposed on the first inert metal contact, wherein the phase separated material includes interstitial ions; and a second inert metal contact disposed on the layer of the phase separated material. The first phase of the phase separated material can have a different concentration of the interstitial ions from the second phase of the phase separated material such that the first phase of the phase separated material has a different electrical conductivity from the second phase of the phase separated material. A method for operating the present memristive device is also provided.

The invention relates to a device for measuring hydrogen conductivity and continuously removing cations in water. The device comprises a conductivity meter, a pH meter, a pure water tank, an ammonia-containing water tank, an electric deamination device, a power supply, a power water pump and a flow meter, wherein the electric deamination device comprises an ammonia removal compartment, a positive electrode chamber and a negative electrode chamber; the positive electrode chamber and the negative electrode chamber are respectively positioned on the left side and the right side of the electric deamination device; and a positive electrode chamber water distribution plate is arranged between the positive electrode chamber and the ammonia removal compartment. The device disclosed by the invention has the beneficial effects that the structure of an electrical desorption method is optimized, and the device for continuously removing cations in water for hydrogen conductivity measurement is designed, so that ammonia water can be efficiently removed. The cation exchange membrane is selected, so that anions can be prevented from entering the ammonia removal compartment, and anion pollution is avoided; and the positive electrode chamber and the negative electrode chamber which are used for providing a direct-current electric field are arranged, and strong acid type ion exchange resin is arranged in the ammonia removal compartment, so that the efficiency of transferring ammonia water to ammonia radical ions in a chemical equilibrium manner is improved, and the removal efficiency is improved.

The invention relates to an electrodialysis membrane recovery process for acid wastewater in viscose fiber spinning, and belongs to the technical field of electrodialysis membrane recovery. The process comprises steps of: pretreatment of low-concentration acid wastewater, pretreatment of an acid bath after spinning, arrangement of electrodialysis membrane components, entrance of electrodialysis membrane components to the acid bath after spinning, ion transfer, and acid bath reuse. Acid wastewater in viscose fiber spinning is treated through the specific electrodialysis membrane recovery process, sulfuric acid and zinc sulfate in the low-concentration of acid wastewater is effectively recovered, the acid bath after spinning achieves the requirements of the acid bath before spinning and is reused, and consumption of alkaline substances and discharge of salt substances are reduced.

The invention provides a composite corrosion inhibitor electrolyte, an application thereof and a magnesium air battery, and belongs to the field of air batteries. In the invention, La<3+> in lanthanumnitrate can react with OH<-> in the solution to generate lanthanum hydroxide to precipitate, and the structure and appearance of a passive film are changed, so that hydrogen evolution is inhibited, the damage effect of nitrate ions on the passive film is weak, and the integrity of the primary passive film is ensured, thereby having a good protection effect on internal battery materials, and inhibiting the hydrogen evolution. CTAB is a cationic surfactant, can significantly reduce the surface tension, change the surface state of metal / electrolyte, gather on the surface of active metal by utilizing the electrostatic adsorption of NH<2+>, reduce the surface energy of the metal and increase the corrosion activation energy, thereby slowing down the corrosion rate, and simultaneously forming alayer of hydrophobic protection film on the surface layer of the metal, thus hindering the charge and ion transfer, hindering the reaction process and reducing the corrosion rate.

The invention relates to a weather-resistant oil-water mixed gel platform and its preparation and application. The preparation method includes the following steps: (1) modifying chondroitin sulfate to prepare modified chondroitin sulfate with double bonds as a crosslinking agent (2) Mix ethylene glycol with water to prepare an oil-water mixture; (3) Dilute the concentrated sulfuric acid with an oil-water mixture to obtain a mixed solvent; (4) Mix the prepared cross-linking agent with a solvent, add monomers and light-initiated The system is prepared into a uniform precursor solution; (5) the obtained gel precursor solution is gelled to prepare an oil-water mixed gel; (6) the prepared oil-water mixed gel is loaded with mercaptopyridine to prepare a redox active oil-water mixed gel. Compared with the prior art, the preparation process of the present invention is convenient and efficient, and the material is green and environmentally friendly. The prepared gel platform has all-weather tolerance and ion transfer ability, and can be used to prepare electronic energy storage devices.

The invention discloses a metal ion transfer carrier, its preparation method and application, and relates to the field of metal ion application. The metal ion transfer carrier is a mixed solution. The mixed solution includes a substrate and metal ions. The substrate and the metal ion are combined through coordination. The substrate is a water-soluble compound containing carboxyl groups. The molar ratio of the substrate to the metal ion in the mixed solution is 30‑200:5‑30. By adjusting the ratio of substrate (water-soluble compound containing carboxyl group) to metal ion, part of the carboxyl group of the water-soluble compound is combined with the metal ion through coordination, and another part of the carboxyl group of the water-soluble compound exists in the solution in a free form Thereby maintaining the water solubility of the metal ion transfer carrier in a wide pH range. Therefore, the metal ion transfer carrier provided by the present invention does not have the phenomenon of precipitation or uneven distribution of metal ions under neutral or alkaline conditions.

Provided are electrochemical cells and methods of manufacturing these cells. An electrochemical cell comprises a positive electrode and an electrolyte layer, printed over the positive electrode. In some examples, each of the positive electrode, electrolyte layer, and negative electrode comprises an ionic liquid enabling ionic transfer. The negative electrode comprises a negative active material layer (e.g., comprising zinc), printed over and directly interfacing the electrolyte layer. The negative electrode also comprises a negative current collector (e.g., copper foil) and a conductive pressure sensitive adhesive layer. The conductive pressure sensitive adhesive layer is disposed between and adhered to, directly interfaces, and provides electronic conductivity between the negative active material layer and the negative current collector. In some examples, the conductive pressure sensitive adhesive layer comprises carbon and / or metal particles (e.g., nickel, copper, indium, and / or silver). Furthermore, the conductive pressure sensitive adhesive layer may comprise an acrylic polymer, encapsulating these particles.

An electrolyte-separating membrane includes a carrier made of a porous and permeable synthetic thermoplastic material that is larger than 0.8 mm in thickness and an active layer made of a material able to induce insertion and deinsertion reactions for selective transfer of cations through the membrane. The active layer is deposited on the carrier and is hermetic. The material of the active layer may in particular be a molybdenum cluster chalcogenide. The invention aims to provide an electrolyte-separating membrane that is able to transfer cations selectively and that may be manufactured with large dimensions. The invention also relates to a cation transfer method employing this membrane and to a process for manufacturing said membrane, in particular by selective laser sintering of a powdered polymer.

The invention relates to a solid-state polymer electrolyte membrane material with continuous ion transfer nanometer channels. The solid-state polymer electrolyte membrane material is a membrane prepared from spherical micelle, which is formed by amphiphilic polymers in a self-assembling way, through fusing and crosslinking; the preparation method comprises the steps of selecting one kind of cosolvent and preparing PCOE-g-MPEG comb-shaped copolymer solution with a certain concentration; selecting one kind of selective solvent, stirring and slowly adding into the comb-shaped copolymer solution; performing dialysis on the obtained mixed solution; weighing a certain amount of lithium salt and adding into the dialysed micelle solution, and performing condensation on a volatile solvent to obtain flocculent accumulated micelle; and performing heat treatment in a drying oven to obtain the solid-state polymer electrolyte membrane. The obtained solid-state polymer electrolyte membrane can form continuous ion transfer channels when the MPEG content is relatively low, so that relatively high electrical conductivity and high mechanical performance can be maintained.

The invention discloses a method for building a K+ ion channel on liquid / liquid interfaces. The method for building the K+ ion channel on the liquid / liquid interfaces comprises the following steps that (1) an alumina template is prepared; (2) the prepared alumina template is fixed on a polished smooth plastic pipe through a conductive adhesive, a three-bifurcation pipe is used as an electrolytic tank, organic phases are first added, then a potassium chloride solution is added in the plastic pipe with the fixed alumina template, the plastic pipe is placed on a three-bifurcation main pipe, the alumina template is right located on the interfaces where two solutions are not dissolved with each other, and therefore the ion channel of the liquid / liquid interfaces is formed. The method can be used for simulating a biological membrane and researching the dynamic process that ions pass through the ion channel, has important significance in researching ion transferring, knowing, understanding and mastering a large number of important physiological processes and revealing metabolic processes of substances and energy in biological bodies, and builds a platform for simulating the ions in a biological system.

A system is disclosed for providing inerting gas to a protected space. The system includes an electrochemical cell including a cathode, an anode separated by a separator that includes an ion transfer medium, and an electrical connection to a power source or power sink. A cathode fluid flow path is in operative fluid communication with a catalyst at the cathode between a cathode fluid flow path inlet and a cathode fluid flow path outlet, and an anode fluid flow path is in operative fluid communication with a catalyst at the anode, and includes an anode fluid flow path outlet. A cathode supply fluid flow path is disposed between the protected space and the cathode fluid flow path inlet, and an inerting gas flow path is in operative fluid communication with the cathode flow path outlet and the protected space.