Products Description
Titanium electrodes for electrolytic deposition of cobalt
The electrolysis forms of cobalt and nickel are diverse, which is a major feature of nickel and cobalt metallurgy. The process of producing electrolysis can be roughly divided into two types. One is to use chemical precipitation method to purify and remove impurities >Two stages
Separate nickel and cobalt from chlorine > Fire calcining > Reduction and smelting into crude cobalt anode > Obtain electrolytic cobalt through electrolytic refining; the other method is to remove impurities > Separate nickel and cobalt > Prepare cobalt chloride solution > Conduct insoluble anode electrodeposition Obtain electrolytic cobalt.
| Anode substrate | Coating | Coating thickness | Electrolyte | Current density | pH | Service life |
| Titanium in Grade 1 or 2 | Ruthenium iridium oxide | 5-20 micron | Chloride Solutions | 1000 A/m2 | >2 | 2-5 years |
The electrodeposition process of cobalt in a chloride medium (i.e., COC12 electrolyte) involves multiple steps, involving multiple physical and chemical processes such as dissolution, charge transfer, material transfer, and electrode reaction. In this process, the composition and properties of the electrolyte, current density, temperature and electrode materials will all affect the electroplating process.
In the electroplating process, first, cobalt ions dissolved in the chloride medium are transported to the electrode surface through diffusion and migration. On the electrode surface, cobalt ions are converted into metallic cobalt through a discharge reaction, and electrons are transferred to the anode through an external circuit. This process involves two main steps: charge transfer and material transfer.
During the electrode reaction, cobalt ions lose electrons on the anode and are reduced to metallic cobalt. This process involves the gain, loss, and transfer of electrons. At the same time, chlorine ions also gain electrons on the anode and are oxidized into chlorine gas. This process is also a charge transfer process. The entire electroplating process needs to be carried out at appropriate current density and temperature to ensure the deposition quality and deposition rate of metallic cobalt. A current density that is too high will lead to excessive deposition of metallic cobalt and clogging of the electrode surface, while a current density that is too low will affect the deposition rate and yield. Temperature will also affect the electroplating process. Too high a temperature may lead to electrolyte decomposition and electrode corrosion. Too low a temperature will affect electroplating efficiency and deposition quality. In actual operation, it is necessary to control the composition and concentration of the chloride medium, current density and Temperature and other parameters to ensure the smooth progress of the electroplating process and obtain high-quality metallic cobalt products. At the same time, attention must be paid to the selection and maintenance of electrode materials to ensure the stability and service life of the electrodes.
Products show
JMT produces Titanium electrodes for electrolytic deposition of cobalt that are placed on prepared titanium plate to facilitate the electrowinning of cobalt from chloride solutions by thermal breakdown. Composites of noble metal oxides, such as ruthenium and other platinum group metals, make up the electrocatalytic coating. The DSA titanium anode demonstrated both high corrosion stability and significant electrical energy consumption.
Company introduction
FOCUSED ON HIGH OUALITY TITANIUM MATERIAL
JM-TITANIUM is one of the leading manufacturers of titanium electrodes, coated titanium anodes and waste water treatment solution in China. It has a professional technical team and skilled workers with decades of experience in titanium electrodes and electrochemistry fields. It can offer you customize high quality titanium electrodes and perfect solutions.
Electrode reactions during cobalt electrode deposition
Electrode reactions during cobalt electrode deposition
A cathodic reaction
The cathode of cobalt electrolysis is a titanium plate as the cathode, which is produced by electrolysis in a seed plate tank. The cobalt ion discharge reaction mainly occurs on the cathode, and metallic cobalt is precipitated:
Cobalt is an electronegative metal 
has a negative standard electrode potential than hydrogen. Although it is also possible to discharge hydrogen ions at the cobalt cathode, the reaction is:
The H+ concentration in the solution should be controlled during the electrolysis process. Cobalt electrolysis uses an electrolyte acidity close to neutral, and adds boric acid as a buffer to stabilize the pH value of the solution and ensure that Co2+ is precipitated at the cathode preferentially than H+. In the electrochemical sequence, cobalt and nickel have similar potentials and similar properties, and the behavior of the cathode process is basically the same. Impurities such as copper, nickel, arsenic, etc., which have a positive potential than cobalt, can precipitate together with cobalt at the cathode. When the concentration of iron, manganese, zinc, etc., which have a negative potential than cobalt, is not high, they have basically no impact on the quality of electrocobalt. However, High levels will also contaminate the cathode. The metal in the electroplating process comes from the leaching-purified liquid. The electrolyte has been deeply purified and impurities removed in advance. Diaphragm electrolysis does not need to be used in production.
B anode reaction
The electroplating process uses an insoluble anode. The anode material itself does not undergo an electrochemical dissolution reaction. The electrode reaction of the insoluble anode is mainly a discharge reaction of negatively charged ions such as anions or anionic groups in the electrolyte.
Commonly used anodes for cobalt electrowinning are high-purity graphite and titanium plate anodes coated with ruthenium. The carbon in the graphite anode is pulverized and scattered during the electroplating process, causing the cathode to contain carbon. At present, ruthenium-coated titanium plate anodes are mostly used. For electroplating of sulfate aqueous solutions, lead-silver anodes can also be used
Shipping and Packing
Transportation method
Express (DHL, Fedex, UPS, national special line) air transportation, sea transportation, land transportation, multiple ways to meet your needs
Port:
Tianjin, Shanghai, Qingdao or any other Chinese main port.
Lead Time:
2-15 days after payment confirmed.
Packaging Details:
1. Inside: Kraft papers, plastic bags, polyethylene foamed sheet;
2. Outside: packing: wooden box;
3. Or according to customer requirement.
Contact
Contact us for more information. Thank you
Nicole
Company: Baoji Jimiyun Dynamic Co., Ltd
Country:China
Add:Baoti road,Jintai,Baoji city,Shaanxi,China
Cel:+86 18391896637
Gmail:alisa@jmyunti.com
Website:www.jm-titanium.com
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