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.
1 Irish Trio NFL Combine Bound. 2  2016 Notre Dame National Football League Draft Recap. 3  Notre Dame Football Pro Day: Grace Gives It All Heâs Got.  Saturday Brunch: Irish Back to Work at NFL 1  Combine. Fiesta Bowl Notes.  Coach Kelly Signing Day Press 1  Conference. FB: Brown, Chris Player Highlights.  Chris Brown NFL Draft.