135results about How to "Diffused evenly" patented technology

The invention provides an iron-based perovskite oxide catalyst for use in purification of carbon smoke particles emitted from diesel vehicles and a preparation method thereof. The catalyst is a three-dimensional ordered porous-mesoporous iron-based perovskite oxide consisting of more than two elements from rear earth metals, transitional metals, alkali metal and / or alkaline earth metals as active components, wherein the pores of the oxide are formed into a uniform and ordered verse opal structure; and the mesopores are formed into a worm-like structure. In the invention, a carbon temperature supporting process is adopted, carboxyl-modified microspheres are used as pore temperatures, a surfactant is a mesoporous template, a firm carbon template can be formed by roasting in an inert gas, the supporting porous-mesoprous structure is free from collapse, and when roasted in the air, a perovskite structure can be formed. The catalyst of the invention can contact with carbon smoke particles effectively and is favorable for the conversion of small particles and gas molecules. Under a condition that the catalyst is in loose contact with the carbon smoke particles, the minimum combustion peak temperature is 396 DEG C, and the activity of the catalyst is equivalent to that of a noble metal catalyst.

Provided herein are a negative electrode and a secondary battery including the same. In particular, the negative electrode includes: a current collector; a first active material layer including firstactive material particles and disposed on the current collector; and a second active material layer including second active material particles and disposed on the first active material layer, in whicha lithium ion diffusion rate of the second active material particles is two to three times that of the first active material particles.

The invention relates to a macroporous-mesoporous cerium-zirconium solid solution silver-loaded catalyst and a preparation method and application thereof. The catalyst carrier is a cerium-zirconium solid solution, the chemical composition is Ce0.8Zr0.2O2, active components are elementary-substance silver nanoparticles, and the weight of the active components is 0.01-5% of the weight of the Ce0.8Zr0.2O2 carrier; perferably, the elementary-substance silver nanoparticles are formed by roasting silver nitrate. The macroporous-mesoporous cerium-zirconium solid solution silver-loaded catalyst provided by the invention has very high activity when applied to the catalytic combustion of the soot particles discharged by a diesel vehicle, and the catalyst cost is greatly reduced; moreover, the catalyst preparation method provided by the invention is simple and easy to implement and suitable for large-scale industrial production. The implementation of the invention is of very important fundamental research significance and practical environmental protection significance in control on the tail gas of the diesel vehicle.

The invention relates to a catalyst of three-dimensional ordered macroporous cerium-based oxide supported gold for purifying diesel soot and a preparation method thereof. The invention firstly provides an oxidation catalyst for the combustion soot particulate matter emitted by diesel vehicles. The oxidation catalyst is obtained by using a simple metallic oxide or a compound metallic oxide containing one or more rare earth metallic elements and having a three-dimensional ordered macroporous structure as the active component of a carrier supported precious metal, wherein the compound metallic oxide is a Ce-based solid solution-type compound metallic oxide, and the active component of the precious metal is the gold, and moreover, the average pore size of macropores in the carrier is 50nm-1mum. Adopting the catalyst of the carrier supported precious metal with the three-dimensional ordered macroporous structure is beneficial to the diffusion of the soot particulate matter in pore canals,improves the use ratio of the active superficial area of the catalyst and greatly reduces the combustion temperature of the soot particulate matter. The invention also provides a preparation method for the catalyst.

The invention relates to a preparation method of a carbon / carbon / silicon carbide composite material. The preparation method is characterized in that: chemical gas phase permeation technology is adopted to prepare reactive carbon atom and provide protection for carbon fiber, and is combined with the resin liquid phase dipping carbonizing technology to prepare carbon / carbon composite material through adopting a pore adjusting method of a composite material blank; moreover, the density of the obtained carbon / carbon composite material is between 1.0g / cm<3> and 1.90g / cm<3>; a method according to which the gaseous atom generated through the evaporation of solid silicon and the carbon atom in the carbon / carbon composite material are formed into SiC through chemical reaction under high temperature ranging from 1,650 DEG C to 2,200 DEG C is adopted to carry out the rapid preparation of the carbon / carbon / silicon carbide composite material. Compared with body carbon / carbon composite material, the mechanical property of the carbon / carbon / silicon carbide composite material is substantially increased to an equivalent degree and has outstanding antioxidation. Moreover, the preparation method is an engineered method which can realize the efficient preparation of a small-scale thin-wall special-shaped high-performance carbon / carbon / silicon carbide composite material.

The invention provides an array substrate and a display device and belongs to the technical field of display. The array substrate comprises a substrate body, a via hole and a diffusion portion, wherein the via hole and the diffusion portion are positioned above the substrate body, orthographic projection of the diffusion portion on the substrate body is connected with that of the via hole on the substrate body, and the diffusion portion is used for diffusing orientation liquid at the position of the via hole. The array substrate has the advantages that the diffusion portion capable of diffusing the orientation liquid at the position of the via hole is arranged, the orthographic projection of the diffusion portion on the substrate body is connected with that of the via hole on the substrate body, and accordingly the orientation liquid at the corresponding position of the via hole is guided from the corresponding position of the diffusion portion when the surface of the array substrate is sprayed with the orientation liquid to enable the orientation liquid at the corresponding position of the via hole to diffuse evenly, and the problem of poor display due to uneven diffusion of the orientation liquid can be prevented.

The invention discloses a preparation method of a membrane electrode comprising a three-dimensional lyophobic negative electrode catalysis layer. According to the method, a high-platinum-content catalyst and an ultra-thin proton exchange membrane are adopted; and the negative electrode catalysis layer is added with a three-dimensional structured auxiliary and a lyophobic material to prepare the high-performance and high-power-density membrane electrode comprising the three-dimensional lyophobic negative electrode catalysis layer. By adding carbon nanotubes and the like to the negative electrode catalysis layer disclosed in the invention to form the three-dimensional structure of the catalysis layer, the porosity of the catalysis layer and catalyst utilization rate are improved, and gas diffusion capability and electron transport capability are enhanced; by virtue of the added lyophobic material, water management of the negative electrode can be improved effectively, particularly, watergenerated in the negative electrode reaction can be discharged effectively at high current density, so that it is ensured that the negative electrode reaction gas can be smoothly diffused to the negative electrode catalysis layer to be reacted with the catalyst; the preparation method is simple in steps, high in feasibility, practical and easy to operate and low in cost; and the membrane electrode is small in size, light in weight, and easy to prepare, and large-scale production of the membrane electrode can be realized.

The invention relates to a carbon fiber wire beam continuous metal electroplating process, which comprises: removing a sizing agent, washing with a surfactant solution, adopting carbon fibers as a cathode, adopting a plated metal as an anode, arranging a non-circular mechanical guide roller in an electroplating bath, driving the non-circular mechanical guide roller to rotate through a motor so as to drive the carbon fiber wire beam to periodically vibrate in the electroplating solution, electroplating on the carbon fiber surface, washing, and collecting the wire. According to the present invention, advantages of simpleness, practicality and low cost are provided, and the black core problem in the e carbon fiber wire beam can be well solved.

The invention belongs to the technical field of steel rolling, and particularly relates to a method for manufacturing a transformation induced plasticity steel seamless tube on line. The method comprises the following steps of: heating a wall cold-drawing seamless steel tube to a critical region of between 760 and 850 DEG C by using an intermediate frequency heating induction coil at a heating speed of at least 35 DEG C / s; cooling to a bainite region of between 380 and 450 DEG C at a speed of between 40 and 80 DEG C / s, and performing isothermal treatment for 10 to 40 seconds; and performing air cooling, water cooling or cooling naturally to a room temperature to obtain the transformation induced plasticity steel seamless tube. By measuring the transformation induced plasticity steel seamless tube prepared by the technical scheme, the tensile strength is 780 MPa level, the percentage of elongtation is more than or equal to 24 percent, a ratio of tensile strength to yield strength is less than or equal to 0.55, and a strain hardening index n is more than or equal to 0.24.

The invention provides a high power density permanent magnet synchronous motor with a radiator and relates to a radiator structure of the permanent magnet synchronous motor. The motor comprises a stator composed of a stator iron core, a stator winding, a machine casing, a front end cover and a rear end cover and a rotor composed of a rotor iron core, a shaft and the like. The high power density permanent magnet synchronous motor with the radiator is characterized in that the radiator is mainly composed of a double-helix-shaped copper pipe or aluminum alloy pipe water channel installed in the wall of the machine casing and a water inlet and output nozzle installed on the front end cover. The radiator has the advantages of being resistant to high water pressure, strong in heat dissipating capacity, balanced in heat dissipation, simple in structure, small in volume and the like. The radiator can be widely applied to the permanent magnet synchronous motor and is particularly suitable for the high power density permanent magnet synchronous motor.

The present invention relates to the technical field of power distribution, in particular to a fireproof distribution box, which includes a box body, two sides of the box body are provided with heat dissipation ports, a fire extinguishing barrel is arranged on the support, and a fire extinguishing barrel is arranged at the bottom end of the fire extinguishing barrel There is a delivery pipe, the delivery pipe runs through the box body and is located in the inner cavity of the box body, the delivery tube is provided with a solenoid valve, the bottom end of the inner cavity of the delivery tube is provided with a mounting groove, and the inner cavity of the installation groove is set There is a motor, and the motor shaft of the motor is plugged into the inner cavity of the connecting piece. The connecting piece is located at the axis of the rotating disk. The side inner wall is provided with a fire sensor and a smoke sensor, the fire sensor is located above the smoke sensor, and a control device is provided on the right side of the box, and the control device is electrically connected to the fire sensor, smoke sensor, motor and solenoid valve respectively . The fireproof distribution box has good fireproof performance and ensures the safety of electric equipment.

A battery apparatus is disclosed. The battery apparatus has a frame body, a plurality of battery units, a first electric conductive sheet, a first electric-insulated thermally conductive pad, and a thermally conductive panel. The frame body has an upper surface and a first lateral plane; the plurality of battery units are situated inside the frame body and a first electrode of each battery unit is exposed to the upper surface; the first electric conductive sheet touches the upper surface and contacts the first electrode for conducting the electric currents of the plurality of battery units; the first electric-insulated thermally conductive pad is situated above the first electric conductive sheet; the first thermally conductive panel is situated above the first electric-insulated thermally conductive pad and contacts the first lateral plane.