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Catalytic Converters

AQA AS-level ChemistryKineticsLesson 10 of 14

Cars have catalytic converters fitted to their exhaust pipes. The catalytic converters are made from a honeycomb of ceramic material coated with the metallic catalysts platinum, palladium or rhodium. The honeycomb provides a large surface area for the reactions:

Diagram

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Key terms in this lesson

Catalyst
A substance that increases the rate of a chemical reaction without being used up, by providing an alternative reaction pathway with a lower activation energy.

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