The catalyst used in catalytic converters is finely dividedans.NiFePdPt

The catalyst used in catalytic converters is usually a combination of platinum (Pt), palladium (Pd), and rhodium. Nickel (Ni) and iron (Fe) are not typically used. The metals are finely divided to increase their surface area and maximize their effectiveness. Here are the steps:

1. The catalytic converter is installed in the exhaust system of a vehicle.
2. As exhaust gases pass through the converter, they come into contact with the catalyst (a combination of Pt, Pd, and Rh).
3. The catalyst triggers a chemical reaction that converts harmful gases into less harmful substances before they are emitted from the vehicle.
4. Carbon monoxide (a poisonous gas) is converted into carbon dioxide.
5. Nitrogen oxides, which contribute to smog and acid rain, are converted into nitrogen and oxygen.
6. Hydrocarbons, which contribute to smog, are converted into carbon dioxide and water.