Catalysts questions
1. Catalytic converters used in automobiles typically contain platinum, palladium and/or rhodium metal coated onto a honeycomb ceramic surface. They convert oxides of nitrogen, NOx, carbon monoxide and volatile organic compounds, VOCs, such as unburned octane, into less harmful gases. They operate in three different stages. Oxidation, reduction and the monitoring of oxygen content of the exhaust gases to feed back to...