Platinum-coated Electrodes For Hydrogen Production

Titanium anode is the anode in titanium-based metal oxide coating. According to the different

surface catalytic coatings, it has the function of oxygen evolution and chlorine evolution respectively. 

Generally, electrode materials should have good electrical conductivity, a small change in pole 

distance, strong corrosion resistance, good mechanical strength and processing performance, long life, 

low cost, and good electrocatalytic performance for electrode reaction. Titanium is the most suitable 

for the above comprehensive The required metal is generally industrial pure titanium GR1 OR GR2.

Classification

Soluble anodes and insoluble anodes

The soluble anode plays the role of supplementing metal ions and conducts electricity during the 

electrolysis process, while the insoluble anode only plays the role of conducting electricity. The earliest 

insoluble anodes were graphite and lead-based anodes. In the 1970s, titanium anodes began to be 

used in electrolysis and electroplating as new technology. Insoluble anodes can be divided into two 

categories: chlorine evolution anodes and oxygen evolution anodes. Chlorine evolution anode is 

mainly used in chloride electrolyte systems. During the electroplating process, the anode releases 

chlorine gas, so it is called a chlorine evolution anode; oxygen evolution anode is mainly used in 

sulfate, nitrate, hydrocyanate, and other electrolyte systems. During the process, oxygen is released 

from the anode, so it is called an oxygen evolution anode. Lead alloy anodes are oxygen-evolution 

anodes and titanium anodes have oxygen-evolution, chlorine-evolution functions, or both according 

to their surface catalytic coatings.

• Titanium anode for the Chlor-alkali industry

Compared with the graphite electrode, the diaphragm method produces caustic soda, and the working 

voltage of the graphite anode is 8A/DM2, which can be doubled to 17A/DM2. In this way, the product 

can be doubled under the same electrolysis environment, the quality of the produced product is 

high and the purity of chlorine gas is high.

• Titanium anode for electroplating

Insoluble anodes for electroplating are coated with noble metal oxide coatings with high 

electrochemical catalytic performance on titanium substrates (mesh, plate, ribbon, tubular, etc.), and 

the coating contains valve metal oxides with high stability. The new insoluble titanium anode has high 

electrochemical catalytic energy, and the oxygen evolution overpotential is about 0.5 V lower than that 

of the lead alloy insoluble anode. The oxygen evolution overpotential of the new insoluble titanium 

anode is also lower than that of the platinum-plated insoluble anode, but the life span is more than 

doubled. It is widely used as an anode or auxiliary anode in various electroplating and can replace 

conventional lead-based alloy anode. Under the same conditions, it can reduce cell voltage and save 

power consumption; insoluble titanium anode has good stability in the electroplating process. 

(chemical, electrochemical), long service life. This anode is widely used in nickel-plated gold-plated, 

chrome-plated, zinc-plated, copper-plated, and other electroplating non-ferrous metal industries.

Lead and lead alloy anodes

The lead alloy anode belongs to the oxygen evolution anode, and the electrolyte for the oxygen 

evolution reaction is sulfuric acid and sulfate, which is mainly used in electrolytic metallurgy. Such 

anodes have the disadvantage that the geometry will change during electrolysis. , During the 

electrolysis process, the lead anode matrix is first converted into lead sulfate and then into lead oxide. 

Lead sulfate is an intermediate layer that acts as an insulator and acts as a 

chemical barrier to protect the lead matrix of the inner layer in a sulfuric acid environment.

Lead oxide is an electrode in the actual sense in the outer layer, and an oxygen 

evolution reaction occurs on it. The oxygen evolution potential of lead oxide is very high, 

and it rises rapidly with the increase of current density. This feature of lead alloy anode 

is that it is oxidized by its outer layer material. The inherent characteristics of lead-lead oxide are 

determined by the poor conductor of electricity. 

In addition, during the electrolysis process, the electrochemical performance of the lead oxide anode 

structure is constantly attenuated, and the generation of internal stress causes the oxide layer to 

fall off. In addition, the formation of lead peroxide also causes the continuous dissolution of the oxide, 

and the sulfuric acid as the intermediate layer The lead is converted into lead oxide again and 

becomes a new electrocatalytic active material of the outer oxide, and the lead matrix of the inner 

the layer is oxidized again to form a new intermediate a protective layer of lead sulfate. Therefore, 

during the electrolysis process, lead and its alloying elements are continuously dissolved into the 

electrolyte and precipitated, resulting in solution pollution (chemical precipitation in the solution) and 

pollution of cathode products(electrodeposition of pollutants on the surface of the cathode, and the 

purity of electrolysis to copper cannot be very high. good is guaranteed).

• Coated Titanium Anode

Coated titanium anode, commonly known as DSA (Dimensionally Stable Anode), also known as DSE 

(Dimensionally Stable Electrode), is a new type of insoluble anode material developed in the late 

The 1960s. 

DSA-coated titanium anodes are mainly used in electrochemistry and electrometallurgy.

The fields of application of DSA-coated titanium anodes are the Chlor-alkali industry, chlorate 

production, hypochlorite production, perchlorate production, persulfate electrolysis, electrolytic 

organic synthesis, electrolytic extraction of non-ferrous metals, electrolytic silver catalyst production, 

Copper foil production by electrolysis, mercury recovery by electrolytic oxidation, water electrolysis, 

production of chlorine dioxide, hospital sewage treatment, treatment of cyanide-containing 

wastewater in electroplating plants, disinfection of domestic water and food utensils, treatment of 

cooling circulating water in power plants, wool spinning Treatment of factory dyeing, and finishing 

wastewater, treatment of industrial water, production of acid-base ionized water by electrolysis, 

galvanizing, rhodium-plating, palladium-plating, gold-plating, lead-plating of copper plates, 

desalination of seawater by electrodialysis, preparation of tetramethyl hydroxide by electrodialysis 

Ammonium, molten salt electrolysis, battery production, cathodic protection, production of negative 

electrode foil, anodization of aluminum foil, etc. It is widely used in the chemical industry, metallurgy, 

water treatment, environmental protection, electroplating, electrolytic organic synthesis, and other 

fields.

Hot Tags: platinum-coated electrodes for hydrogen production, China, suppliers, manufacturers, customized, usage, pricelist, for sale, in stock, free sample, porous material, titanium plate electrode, mmo platinum coated titanium anode plate, gold titanium alloy density, titanium mmo anodes for water treatment, titanium alloy hexagon bolts, titanium flat washers