In the catalytic converter, there are two different types of catalyst at work, a reduction catalyst and an oxidation catalyst. Both types consist of a ceramic structure coated with a metal catalyst, usually platinum, rhodium and/or palladium.ow Catalytic Converters Reduce Pollution. In chemistry, a catalyst is a substance that causes or accelerates a chemical reaction without itself being affected. Catalysts participate in the reactions, but are neither reactants nor products of the reaction they catalyze.
Here's a look at the top 50 draft-eligible prospects for next year, led by quarterback Connor Cook, defensive lineman Joey Bosa, cornerback Vernon Hargreaves, and offensive tackle Ronnie Stanley and Laremy Tunsil.
Broncos 7-round 2017 NFL mock draft: Denver takes Garett Bolles in first round, bolsters defense. The build-up is almost complete. The NFL draft is less than 10 days away, teams are finalizing their boards and âwhat ifâ scenarios are now being discussed. 1  2017 NFL draftâs defensive line breakdown: rankings, sleepers and how Broncos fix their run defense. 2  2017 NFL draftâs linebacker breakdown: rankings, sleepers and Broncos pursuit for depth.