<Dl> <Dd> 2 CO + 2 NO → 2 CO + N </Dd> </Dl> <Dd> 2 CO + 2 NO → 2 CO + N </Dd> <P> With regard to synthetic fuels, an old but still important process is the Fischer - Tropsch synthesis of hydrocarbons from synthesis gas, which itself is processed via water - gas shift reactions, catalysed by iron . Biodiesel and related biofuels require processing via both inorganic and biocatalysts . </P> <P> Fuel cells rely on catalysts for both the anodic and cathodic reactions . </P>

What organic molecules can act as a catalyst