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.
2015 nfl mock re draft updated 5 2 walt round 4 walt round 5 charlie round 4 charlie round 5 walt round 2 walt round 3 charlie round 2 charlie round 3ther 2015 nfl draft possibilities 1 leonard williams de dt some may see williams as the best player available but we ve heard differently some teams we ve spoken to are worried about williams consistency and ability to produce on third downs