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Differences between carbon electrode products and graphite electrode products

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  • Time of issue:2022-01-03
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(Summary description)Carbon electrode products have high hydrogen overpotential, good conductivity, strong chemical corrosion resistance, smooth surface and are not easy to adhere to gas and dirt. The original electrode of the modified electrode and the redox reaction were measured.
Graphite electrode products is a kind of conductive material with high temperature resistance and oxidation resistance, which is produced by a series of processes, such as crushing, batching, kneading, molding, roasting, impregnation, graphitization, machining and so on.

Differences between carbon electrode products and graphite electrode products

(Summary description)Carbon electrode products have high hydrogen overpotential, good conductivity, strong chemical corrosion resistance, smooth surface and are not easy to adhere to gas and dirt. The original electrode of the modified electrode and the redox reaction were measured.
Graphite electrode products is a kind of conductive material with high temperature resistance and oxidation resistance, which is produced by a series of processes, such as crushing, batching, kneading, molding, roasting, impregnation, graphitization, machining and so on.

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2022-01-03
  • Views:0
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Carbon electrode products have high hydrogen overpotential, good conductivity, strong chemical corrosion resistance, smooth surface and are not easy to adhere to gas and dirt. The original electrode of the modified electrode and the redox reaction were measured.

Carbon electrode products; The one-step treatment of solid electrode surface is mechanical grinding and polishing to the degree of mirror. Especially when there is an inerting layer or strong adsorption layer on the electrode surface, it must be treated by mechanical or heating.

Carbon electrode products are usually used for polishing electrode materials such as emery, CeO2, ZrO2, MgO and α- Al2O3 powder is always polished in the order of lower particle size of polishing agent.

During the experiment, the carbon electrode products with a diameter of 3mm were polished step by step with metallographic sandpaper (1#~7#), and then polished with 1.0 and 0.3 respectively μ M of Al2O3 slurry is polished on the suede to the mirror surface. After each polishing, the surface dirt is washed off first, and then moved to the ultrasonic water bath for cleaning, 2 ~ 3min each time, repeated three times, and then ultrasonic cleaned with 1:1 ethanol, 1:1hno3 and distilled water in turn.

After thorough washing, the electrode shall be activated by cyclic voltammetry in 0.5-1mol/l H2SO4 solution, with a scanning range of 1.0 ~ -1.0v, and repeated scanning until a stable cyclic voltammogram is reached.

Record 1 in 0.20mol/lkno3 × The cyclic voltammetry curve of 10-3mol / L K3Fe (CN) 6 solution was used to test the electrode performance. The scanning speed was 50 mV / s and the scanning range was 0.6 ~ -0.1v. The electrode can be used only when the peak potential difference in the cyclic voltammogram obtained under laboratory conditions is less than 80mv and as close as 64mv. Otherwise, the electrode shall be reprocessed until it meets the requirements.

Graphite electrode products is a kind of conductive material with high temperature resistance and oxidation resistance, which is produced by a series of processes, such as crushing, batching, kneading, molding, roasting, impregnation, graphitization, machining and so on.

Graphite electrode products have good electrical properties and chemical stability, high mechanical strength at high temperature, less impurity content and good vibration resistance. It is a good conductor of heat and electricity.

It is widely used in steelmaking electric arc furnace, refining furnace, submerged arc furnace for the production of ferroalloy, industrial silicon, yellow phosphorus, corundum and other smelting furnaces that use electric arc to produce high temperature.

According to the different power and current in use, it is produced with different raw materials and production processes. It can be divided into ordinary power graphite electrode, high power graphite electrode and ultra-high power graphite electrode. According to the diameter of the electrode, there are φ 75 ~ 600mm different specifications.

According to the special requirements of users, special specifications of graphite electrode products and special-shaped graphite products can be processed and produced. Carbon electrode when stripping voltammetry is carried out in a positive potential range, glassy carbon electrode can be used.

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