What precious metals are inside a three-way catalytic converter?
2 Answers
Three-way catalytic converters contain platinum (Pt), rhodium (Rh), and palladium (Pd). Below is a detailed introduction to three-way catalytic converters: 1. Origin of the name "three-way catalytic converter": There are three harmful substances in engine exhaust emissions. The three-way catalytic converter filters and converts these three harmful substances into harmless substances before they are discharged from the vehicle. This is why it is called a three-way catalytic converter. It is an essential component for every motor vehicle, and vehicles without it cannot function properly. 2. Maintenance considerations: After prolonged use, the three-way catalytic converter in motor vehicles may become clogged. Timely and effective cleaning can extend its lifespan and prevent failure, which could lead to excessive exhaust emissions and failure to pass annual inspection procedures.
As a guy who often works on cars, I gotta say the catalytic converter mainly contains three precious metals: platinum, palladium, and rhodium. Platinum handles hydrocarbons and carbon monoxide in exhaust gases, palladium does similar work but is more commonly used in gasoline cars, while rhodium specializes in tackling stubborn nitrogen oxides. These metals are extremely rare, with shockingly low global reserves, hence their sky-high prices. The value of catalytic converter precious metals is an old issue – thieves often steal them to sell on the black market, so mechanics must remind owners to secure their undercarriage. Modern vehicles entirely rely on them to purify exhaust and meet emission standards. If they burn out or get stolen, not only will the car fail annual inspections, but it'll also spew black smoke and pollute the environment. Replacing a catalytic converter costs a fortune, easily running into thousands. Simple maintenance tip: avoid slamming the accelerator to reduce violent vibrations and extend its lifespan.
