The catalyst used in catalytic converters is finely dividedans.PtFeNiPd

The catalyst used in catalytic converters is finely divided Platinum (Pt), Palladium (Pd), and sometimes also Nickel (Ni) and Iron (Fe). These metals facilitate the chemical reactions that convert harmful gases into less harmful substances. Here's how it works:

1. Exhaust gases from the engine enter the catalytic converter. These gases include harmful substances like carbon monoxide (CO), nitrogen oxides (NOx), and hydrocarbons (HC).

2. The catalyst, made of Platinum, Palladium, Nickel, and Iron, facilitates chemical reactions that convert these harmful gases into less harmful substances.

3. Platinum and Palladium facilitate the reaction that converts carbon monoxide and hydrocarbons into carbon dioxide (CO2) and water (H2O).

4. Platinum and Nickel facilitate the reaction that converts nitrogen oxides back into nitrogen (N2) and oxygen (O2).

5. The less harmful gases (CO2, H2O, N2, and O2) are then released from the catalytic converter into the atmosphere.

So, the catalyst used in catalytic converters is a combination of finely divided Platinum, Palladium, Nickel, and Iron.

The catalyst used in catalytic converters is finely divided into Platinum (Pt), Iron (Fe), Nickel (Ni), and Palladium (Pd). These metals serve as catalysts to speed up the chemical reactions that convert harmful gases from car exhaust into less harmful substances. Here's a step-by-step breakdown:

1. The harmful gases from the car exhaust enter the catalytic converter. These gases include carbon monoxide (a poisonous gas), nitrogen oxides (which create smog and acid rain), and hydrocarbons (which create smog).

2. The gases come into contact with the finely divided metals: Platinum, Iron, Nickel, and Palladium. These metals are the catalysts, and they are coated onto ceramic beads or a ceramic honeycomb inside the converter.

3. The catalysts trigger chemical reactions that convert the harmful gases into less harmful substances before they leave the car's exhaust system. Carbon monoxide is converted into carbon dioxide, nitrogen oxides are converted into nitrogen and oxygen, and hydrocarbons are converted into carbon dioxide and water.

4. The less harmful substances are then released from the car's exhaust system into the air.