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...tely [[combustion|combusted]]. Automobile converters use [[platinum]] or [[palladium]] and [[rhodium]] as [[catalyst]]s. Hence the combustion ([[redox]]) proce ...for all applications because of unwanted additional reactions and/or cost. Palladium and rhodium are two other precious metals that are used. [[Cerium]], [[iron

...ssions into less harmful ones using, generally, a combination of platinum, palladium and rhodium as catalysts. Catalytic converters have been steadily improved

...electrodes (using metals such as yttrium, iridium, platinum, tungsten, or palladium, as well as the relatively prosaic silver or gold) allows the use of a smal

...on monoxide]], are exposed to the catalyst material ([[platinum]] and/or [[palladium]]), the exhaust compounds are nearly all oxidized into water and [[carbon d