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.
06/21/2012 - Top-five North Carolina prospects for the 2013 NFL Draft: 1. OG Jonathan Cooper (6-3, 305)...Although the position is far from glamorous, at least one guard has been drafted in the first round in six of the last eight years, including a pair of guards last April (David DeCastro and Kevin Zeitler).