3results about How to "Good price" patented technology

The application relates to a method for rapidly preparing a porous Cu / Zn heterojunction electrocatalytic material and application. The method utilizes a dynamic hydrogen bubble template method to prepare the heterojunction electrocatalytic material, and the preparation is carried out under the condition of a higher cathode deposition current. The specific steps are as follows: firstly, copper sulfate, zinc sulfate and ammonium sulfate are dissolved in deionized water according to a certain ratio to serve as an electrodeposition solution. The electrodeposition is carried out at room temperature, the deposition condition is controlled by using a direct current power supply, a hydrophilic carbon paper is used as a substrate electrode, and the porous Cu / Zn heterojunction material is deposited for 30 seconds under the condition of a deposition current of-1.0 A. The preparation scheme can realize in-situ rapid preparation of the porous material, the loading is uniform and stable, the operation process of a relatively cumbersome hard template method is avoided, and the electrocatalytic carbon dioxide reduction preparation carbon monoxide performance is very high.

The application relates to an ionic liquid modified Cu-based bimetal electrode material and a preparation method and application thereof, and belongs to the technical field of material preparation. The method uses an in-situ reduction method to prepare the ionic liquid modified Cu-based bimetal electrode material, and the specific steps are as follows: copper salt and lanthanide chloride are dissolved in deionized water, and then ionic liquid is added after mixing; the mixture is stirred for 30 minutes under ice bath conditions. The above solution is slowly dropped into a sodium borohydride aqueous solution, the precipitate is extracted and filtered after the reaction is completed, the precipitate is washed with ethanol and water alternately for several times, and then the black solid is obtained after drying. The black solid is ultrasonically dispersed in a mixed solution of Nafion and isopropanol, then the dispersion liquid is uniformly coated on a gas diffusion electrode, and the electrode is pre-activated by a cyclic voltammetry method in a carbon dioxide-saturated electrolyte, so that the ionic liquid modified Cu-based bimetal electrode material is obtained. The electrode can be used as a high-efficiency electrode material to realize the conversion of carbon dioxide into ethylene under mild conditions. The Cu-based electrode material synthesis method has the characteristics of simple process and low cost, and is suitable for large-scale production and application.

The utility model provides a kind of top-mounted electric mixer with Morse connection chuck, it is related to electric mixer technical field, including shell, drive shaft, chuck, stirring paddle, the drive shaft includes shaft body, the shaft body is equipped with the through-hole of shaft that can be passed by stirring paddle, the shaft body is rotationally arranged in shell by bearing, the lower part of the shaft body is provided with outer Morse taper, the chuck is used to fix stirring paddle, the inner sleeve of the chuck is equipped with the inner Morse taper that is compatible with outer Morse taper.The top-mounted electric mixer with Morse connection chuck, chuck is connected between drive shaft by Morse taper, and the two are pressed together by Morse taper, compared with the mode of traditional screw fixation, chuck and drive shaft are connected closely, without gap, and coaxiality is good.No special custom-made parts are needed, the price is low, the cost advantage is big, and the product application range is wide.