Homogenous catalysts

• A homogeneous catalyst is a catalyst which is in the same phase as the reactant. For example, the catalyst is in aqueous solution, and the reactants are in the same aqueous solution.
• Catalysts work by changing oxidation state
• In a catalysed reaction, BOTH the steps will have a lower activation energy than the uncatalysed reaction. So this reaction pathway is faster.
• Autocatalysis is the name given to a reaction in which a product is the catalyst.
• Regeneration is a key step in all catalytic reactions.
• An example of a autocatalytic species is Mn2+ that is produced in the reaction between C2O42- ions and MnO4- ions.