Heterogeneous
Cards (7)
- Iron is used as a catalyst in the haber process
- Vanadium oxide is used as a catalyst in the contact process
- Heterogeneous catalysts are usually transition metals as they provide a site for reaction
- Nickel is used as a catalyst in the hydrogenation of unsaturated oils to make margarine
- Three Stages
- Adsorption
- Reaction
- Desorption
- In adsorption, the reactant molecules are held in the correct orientation and form weak bonds with the surface molecules of the catalyst
- During desorption, the products leave the surface of the catalyst