The primary components of a catalyst that can be modified include the active metal, support material, and promoters or inhibitors. Each of these components plays a distinct role: - Active Metal: Often a transition metal like platinum, palladium, or nickel, responsible for the catalytic activity. - Support Material: Provides a surface for the active metal, often enhancing dispersion and stabilization. Common supports include alumina, silica, and carbon. - Promoters/Inhibitors: Additives that enhance or suppress catalytic activity, respectively. Promoters like potassium or cerium can improve selectivity or stability.
