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.
NFL Draft 400: Ranking the Top Strong Safeties for 2016. 0 of 17. Rob Foldy/Getty Images. The 2016 NFL draft class doesn't feature two Heisman Trophy-winning quarterbacks at the top like last season's did with Jameis Winston and Marcus Mariota, but that doesn't mean you shouldn't be excited about this year's class.