Several forms of aluminum are utilized in catalysis, each with distinct properties and applications:
Aluminum oxide (Al2O3): Commonly used as a support material for other catalysts due to its high surface area and thermal stability. Aluminum hydroxide (Al(OH)3): Used in the preparation of various aluminum compounds and as a precursor for alumina. Aluminum chloride (AlCl3): Acts as a Lewis acid catalyst in many organic reactions, such as the Friedel-Crafts alkylation and acylation.
