12 results about "Electrochemical doping" patented technology

An intelligent vision system, including a training array of photonic-organic electrochemical transistor (POECT) devices, each including a substrate, three terminals including a gate, a drain, and a source disposed over the substrate, wherein space between the drain and the source forms a channel, an electrolyte in fluid and electrical communication with the gate and the channel, wherein the channel is formed of a photoactive layer composed of donor-acceptor bulkheterojunction interfaces, each POECT device of the training array provides a memory feature when exposed to light, wherein an image to be recognized is imprinted on the training array by exposing the training array with light corresponding with the image to be recognized, and a discriminator configured to compare the training array with a test model associated with an image to be tested against the image to be recognized, wherein the discriminator signals a match or a mismatch based on a comparison.

This invention discloses an anode material for hydrogen production via water electrolysis, its preparation method, and its application, belonging to the field of water electrolysis hydrogen production technology. The preparation method includes the following steps: using a three-electrode system, with NiFe layered double hydroxide as the working electrode, Pt as the counter electrode, Hg / HgO as the reference electrode, and ammonium molybdate solution as the electrolyte, applying a constant negative potential to the working electrode, and performing electrochemical Mo doping to obtain the anode material for water electrolysis hydrogen production. The catalytic activity of the anode material for water electrolysis hydrogen production of this invention is significantly improved, while the Tafel slope is reduced, making it suitable for industrial-grade high current density water electrolysis.

The application discloses a preparation method of a polymer modified spherical silica aerogel material. First, 3-(acryloyloxy)propyl-2-thiophene acrylate is synthesized through esterification and grafting reaction, and then is subjected to free radical polymerization with vinylpyridine under the action of an initiator and a chain transfer agent, and is subjected to proton acid doping and spray drying to obtain a conductive polymer. After hydrolysis of tetraethyl orthosilicate, the conductive polymer, phosphonated chitosan microspheres and a bridging agent are mixed, and pH and viscosity are adjusted to obtain a composite sol; after drop ball emulsification, gelation, ultrasonic template removal, gradient replacement and subcritical drying, the composite sol is subjected to pulse electrochemical doping and plasma annealing treatment. The prepared aerogel polymer has low charge transfer resistance and excellent conductivity, and has application potential in electrochemical energy storage devices such as supercapacitors.

The invention belongs to the technical field of organic light-emitting diodes, and discloses a hole injection layer for an organic light-emitting device, preparation of the hole injection layer and an organic light-emitting diode. The method comprises the following steps: 1) dissolving an electroactive precursor molecule and a supporting electrolyte in a solvent to obtain an electrolyte solution; then forming a polymer film on the working electrode through electropolymerization; and 2) performing electrochemical doping on the polymer film formed on the working electrode to obtain the hole injection layer. According to the method, the hole injection layer has excellent thickness and morphology controllability and conductivity adjustability, the processing process is simple and convenient, and raw materials are saved. The hole injection layer is used for the organic light-emitting diode, an interface can be effectively modified, an injection barrier is reduced, and the performance of a device is remarkably improved.

This invention discloses a Schottky diode based on cubic boron nitride (c-BN) single crystal material. The fabrication method includes the following steps: A cleaned bulk c-BN single crystal is covered with tape, exposing only the area to be plated with electrodes. An Au metal electrode is deposited on one side of the bulk c-BN single crystal, and then the tape is removed. In a glove box, the oxide layer on the surface of a lithium sheet is scraped off, and the sheet is placed on the Ag-plated side of a PCB board. The unplated side of the bulk c-BN single crystal is then tightly attached to the lithium sheet. Fine metal wires are used to connect and fix the Ag electrode on the PCB board to the Au electrode on the bulk c-BN single crystal. After electrochemical doping, an Au metal electrode is deposited on the lithium-doped side of the c-BN crystal. In this invention, lithium atoms are introduced onto the c-BN surface, and their energy levels are located at shallow levels, thereby effectively improving the interfacial contact quality between the metal and c-BN. This improvement further reduces the contact barrier ΦB between the c-BN single crystal and the metal by reducing the interfacial state density.

This invention discloses a titanium-based catalytic electrode and its preparation method, comprising steps such as substrate pretreatment, hydrothermal preparation, and CV doping. Through the above method, the titanium-based catalytic electrode and its preparation method of this invention, using a titanium mesh as a substrate, constructs a titanium-based metal electrode through a multi-step sequential preparation process including substrate etching, hydrothermal treatment, and electrochemical doping. This not only effectively enhances the local pH of the cathode and promotes the rapid precipitation of Mg(OH)2, but also inhibits the dense adhesion of calcium and magnesium scale, extending the electrode's self-cleaning cycle. It is suitable for treating high-hardness wastewater under alkaline conditions, providing important technical support for water pollution control, recycling, and the implementation of sustainable development strategies, possessing significant scientific value and promising application prospects.

The invention relates to the technical field of air pollution control, in particular to a denitration agent composition and a preparation method thereof and application of the denitration agent composition in start-stop peak regulation of a low-temperature boiler, and the denitration agent composition comprises the following components in percentage by weight: 5%-20% of organic acid, 3%-10% of inorganic acid, 0.5%-5% of a surfactant, 1%-8% of a polyaniline compound, 2% of manganese sulfate and the balance of water. The preparation method comprises the following steps: S1, mixing the organic acid with the inorganic acid, and stirring at the temperature of 40-60 DEG C; s2, adding a surfactant and a polyaniline derivative, and continuously stirring for 1-2 hours at the speed of 200-500 rpm; s3, manganese sulfate is added, the PH is adjusted to be 3-4, and a stable composite solution is formed through electrochemical doping induction. The method has the advantages that polyaniline and heteropoly acid are compounded for low-temperature denitration for the first time, traditional high-temperature dependence is broken through, it is guaranteed that efficient operation is still conducted under the low-temperature condition of 25-90 DEG C, and the denitration efficiency is larger than or equal to 80%; according to the invention, the denitration cost is reduced by 20-30%, the catalyst replacement frequency is reduced, and the service life of equipment is prolonged.

The invention discloses a toner containing an insoluble and infusible conductive polymer. The toner can solve the problem that an existing toner is not resistant to thermal offset. According to the technical scheme, the method comprises the following steps: (1) firstly, performing electrochemical doping modification on a conductive polymer to improve the conductivity; (2) crushing a conductive polymer, and performing melt kneading on the crushed conductive polymer and low-melting-point and high-acid-value resin to obtain conductive polymer master batches which are easier to disperse; and (3) preparing the toner composition containing the insoluble and infusible conductive polymer by taking the conductive polymer master batch as an internal additive. The toner obtained by the invention has good thermal migration resistance, narrower charged distribution and good hue, the used materials are wide in source, the treatment method is simple and efficient, and the toner is suitable for large-scale production.

The invention discloses a preparation method of a polymer modified spherical silicon oxide aerogel material. The preparation method comprises the following steps: firstly synthesizing 3-(acryloyloxy) propyl-2-thiophene acrylate through esterification and grafting reaction, then carrying out free radical polymerization on 3-(acryloyloxy) propyl-2-thiophene acrylate and vinylpyridine under the action of an initiator and a chain transfer agent, and carrying out protonic acid doping and spray drying to obtain the conductive polymer. Hydrolyzing tetraethoxysilane, mixing the hydrolyzed tetraethoxysilane with a conductive polymer, phosphorylated chitosan microspheres and a bridging agent, and adjusting pH and viscosity to obtain composite sol; and after ball-dropping emulsification, gelation, ultrasonic template removal, gradient replacement and subcritical drying, pulse electrochemical doping and plasma annealing treatment are performed. The prepared aerogel polymer is low in charge transfer resistance and excellent in conductivity, and has application potential in electrochemical energy storage devices such as supercapacitors.

The invention discloses a method for protecting a metal photoelectric cathode by using photo-assisted electrochemical sodium-doped enhanced TiO2. According to the method, the characteristic that TiO2 can generate a large number of high-energy photo-induced electrons and holes after being excited by light so that the reaction activity of TiO2 is greatly enhanced is utilized, illumination is assisted when TiO2 is subjected to electrochemical treatment, so that sodium ions are efficiently embedded into TiO2, a good doping effect is achieved, and the photoelectric cathode protection capability of TiO2 on metal is greatly enhanced. According to the photo-assisted electrochemical doping technology, the doping content can be adjusted by changing the illumination intensity, the negative voltage and the electrolyte concentration, so that the photoelectric property and the photoelectric cathode protection property of TiO2 are regulated and controlled. Compared with the traditional methods such as high-temperature roasting, plasma injection or hydrothermal method, the doping method not only can improve the doping efficiency, but also has the advantages of being simpler to operate, more accurate and controllable, short in time consumption and low in cost, is suitable for TiO2 materials in various forms, and is also easy to implement on a large scale.

An intelligent vision system, including a training array of photonic-organic electrochemical transistor (POECT) devices, each including a substrate, three terminals including a gate, a drain, and a source disposed over the substrate, wherein space between the drain and the source forms a channel, an electrolyte in fluid and electrical communication with the gate and the channel, wherein the channel is formed of a photoactive layer composed of donor-acceptor bulkheterojunction interfaces, each POECT device of the training array provides a memory feature when exposed to light, wherein an image to be recognized is imprinted on the training array by exposing the training array with light corresponding with the image to be recognized, and a discriminator configured to compare the training array with a test model associated with an image to be tested against the image to be recognized, wherein the discriminator signals a match or a mismatch based on a comparison.

The invention discloses a micro electric field sensor based on an electrochemical doping effect, and relates to the technical field of electric field measurement. The sensor comprises a substrate, an electrode, an organic semiconductor region and an electrolyte region which are sequentially arranged from bottom to top, and is used for realizing electric field measurement through ion implantation and coupling of an organic semiconductor material. The high-sensitivity sensing of an electric field is realized by injecting ions into an organic semiconductor material, the response speed and the accuracy of the sensor are improved by combining the migration characteristic of the ions and the electrochemical doping effect of an organic semiconductor, and the sensitivity and the stability are greatly improved especially under the requirements of miniaturization and low power consumption.