7results about How to "Electrolytic smooth" patented technology

The invention provides an anode catalyst, an electro-catalysis system containing the anode catalyst and a method for producing hydrogen through electro-catalysis ethylene glycol coupled seawater electrolysis. The anode catalyst includes a foam metal as a substrate material; the MCo2O4 spinel oxide is loaded on the foam metal; the palladium nano particles are loaded on the MCo2O4 spinel oxide; wherein M represents metal Mn, Fe, Ni, Cu or Zn. The anode catalyst is applied to hydrogen production through electrocatalysis of ethylene glycol coupled with seawater electrolysis, and shows relatively high selectivity, catalytic activity and stability, which are specifically embodied in that when the industrial-grade current density (600mA cm < 2 >) is reached, the working voltage is only 1.14 V; when the ethylene glycol is completely electrolyzed, the yield of the glycollic acid is as high as 92.6%; meanwhile, the anode catalyst can realize stable electrolysis for more than 100 hours under a seawater condition, and is superior to all current palladium-based ethylene glycol oxidation catalysts.

The invention discloses a high-entropy alloy fiber material of a core-shell structure and a preparation method and application thereof, and belongs to the technical field of alloy material preparation.The method comprises the steps that a buffering agent is dissolved in deionized water to obtain a solution A, the solution A is heated, a complexing agent, additional salt, a reducing agent and soluble metal salt are sequentially added, stirring and dissolving are conducted, and a solution B is obtained; adjusting the pH value of the solution B, and standing at room temperature to obtain an electrolyte; performing ultrasonic cleaning, flushing and drying on the conductive fibers with acetone, ethanol and deionized water respectively; a saturated calomel electrode is used as a reference electrode, a conductive fiber is used as a working electrode, a carbon electrode bar is used as a counter electrode, the three electrodes are immersed in an electrolyte, a constant-potential electro-deposition method is used, electro-deposition is carried out on the surface of the conductive fiber, and the high-entropy alloy fiber is obtained. Uniform electro-deposition of the high-entropy alloy on the surface of the fiber is achieved, and the high-entropy alloy fiber material with excellent conductivity is obtained.

The present invention discloses an anode catalyst, system and method for preparing glycolic acid from ethylene glycol by electrocatalysis, wherein the anode catalyst comprises a foam metal and a metal hydroxide nanosheet grown in situ on the foam metal; the metal hydroxide nanosheet is loaded with metal palladium nanoparticles. The anode catalyst provided by the present invention can exhibit excellent performance in preparing glycolic acid from ethylene glycol by electrocatalysis, specifically, when the industrial grade current density (600mA / cm 2 ), the operating voltage is only 1.15V; when the ethylene glycol conversion is 93.2%, the selectivity of glycolic acid is as high as 91.6%; in addition, the catalyst can achieve stable electrolysis for more than 200 hours, which is better than all current palladium-based catalysts.

The utility model relates to the technical field of electrolyzers, and discloses an electrolyzer taking an air electrode as a cathode, which comprises an electrolytic bath body, an electrolytic tin ingot block is arranged in the electrolytic bath body, the electrolytic tin ingot block is electrically connected with a positive electrode of a direct current power supply through a first copper wire, and a group of vertical through holes are arranged on the electrolytic tin ingot block. The air electrode is rolled into a cylinder shape and placed in the through hole, the top of the air electrode is exposed above the electrolytic tin ingot and electrically connected with the negative electrode of the direct-current power source through a second copper wire, and the bottom of the air electrode is flush with the bottom of the electrolytic tin ingot. The air electrode is used as the cathode, the cathode does not generate hydrogen, so that the device is more energy-saving, environment-friendly and safe, the oxygen reaction priority of the cathode is higher than the side reaction generated by sponge tin, and the generation of the sponge tin is greatly reduced.

This utility model discloses an electrolyte tank with an anti-precipitation and anti-turbulence structure, relating to the field of electrolyte tank technology. It includes a shell, a rotor pump on one side of the shell, a pipe fixedly connected to the input end of the rotor pump, the pipe penetrating the side wall of the shell and extending into the shell, a sealing plate slidably inserted into the shell, a power chamber on one side of the shell, and a drive assembly inside the power chamber, the drive assembly being connected to one end of the sealing plate. This utility model isolates the shell into two areas through the sealing plate. This design ensures that the operation of collecting precipitated impurities is independent of the area containing the normal electrolyte, avoiding interference with the normal electrolyte during precipitation collection. For example, it prevents precipitated impurities from being stirred and then mixed back into the normal electrolyte, ensuring the purity and quality of the normal electrolyte and facilitating the stable operation of the electrolysis process.

The invention belongs to the technical field of preparation of graphene composite membranes, and particularly discloses a preparation method and application of a Nafion / graphene / PES-liquid Nafion semi-hydrated composite membrane, and the preparation method comprises the following steps: pasting a copper foil on which graphene grows on a solid Nafion membrane, and enabling one surface, with better graphene growth quality, of the copper foil to be in contact with the solid Nafion membrane; carrying out hot pressing treatment on the device; etching the graphene on the other surface of the copper foil, which is not in contact with the Nafion film, by adopting a dry etching method; removing the copper foil by wet etching; drying at room temperature to obtain a Nafion / graphene composite film; the PES porous membrane is soaked in liquid Nafion, and a PES-liquid Nafion sample is obtained; the sample is placed in a water vapor environment for a semi-hydration reaction, and a PES-liquid Nafion semi-hydration film is obtained; and drying at room temperature, and laminating with the Nafion / graphene composite film to obtain the Nafion / graphene / PES-liquid Nafion semi-hydrated composite film. The prepared semi-hydrated composite membrane can be electrolyzed in liquid water for a long time and kept stable, heavy water can be enriched, and graphene can be well protected.

The electrolysis device comprises an electrolysis box, an anode is arranged on the left side of the bottom wall of the electrolysis box, a cathode is arranged on the right side of the bottom wall of the electrolysis box, the left and right positions of the cathode and the anode correspond, and the left and right sides of the inner wall of the electrolysis box are each provided with two guide grooves corresponding in front and back positions; and a lifting mechanism for driving the placing frame to lift is arranged on the rear side of the electrolysis box, a filtering circulating mechanism for filtering and circulating the electrolyte is arranged between the interiors of the two supporting mounting frames, and a limiting assembly for limiting the diamond is arranged in the placing frame. According to the electrolysis device for diamond electrolysis, electrolyzed diamonds are automatically fished out of the electrolyte and automatically drained, the electrolyzed diamonds can be continuously and rapidly treated, the production period is remarkably shortened, meanwhile, the opportunity that workers make direct contact with the electrolyte is reduced, the occupational health risk is reduced, and the production efficiency is improved. From the long term, the automation can reduce the labor cost and improve the production benefit.