The cobalt catalyst refers to an elemental cobalt or cobalt compound which has a catalytic function. Cobalt is a silver-white ferromagnetic metal belonging to the fourth cycle, group VIII in the periodic table. Cobalt is a moderately active metal that does not interact with water at ambient temperatures and does not react in moist air. The common valences of cobalt are +2 and +3. When cobalt is heated to above 300℃ in air, it is oxidized to form CoO. Cobalt can form various cobalt salts, and most of the cobalt salts have catalytic properties. In the application process, a simple cobalt catalyst is usually used, and sometimes a supported cobalt catalyst is used as needed.
Figure 1. Inorganic cobalt catalyst
Due to their rich and varied forms, low price and good catalytic effect, cobalt catalysts have many applications in the fields of organic synthesis and environmental protection.
Figure 2. Carbonyl cobalt catalyst