How a Catalyst working?
If a Honda Accord has OBD code P0420 in the catalyst bank is it the oxygen sensor or the catalytic converter?
If your question is "What affects catalyst performance?" (i.e. what stops them from working) then there are 2 main things: Atoms permanently bonded to the surface, blocking it, and so that stops other reactant molecules from sticking to it (catalyst poisoning) Catalyst sintering: This can be seen on high temperature solid metal catalysts, where there is a gradual loss of surface area for reactant molecules to stick to as a result of the individual catalyst…
When reactants are binding to the surface of the catalyst, it is important that the catalyst is strong enough to allow a reaction to take place, however having a strong catalyst could mean that the products could permenantly bind to the catalyst, which is a problem. So if the catalyst is too strong, the catalyst isnt very sucessful, and if it is too weak, it also isn't sucesful.
Catalyst is the agent which alter the rat of chemical reactions.Catalyst is not consumed by the reaction as the other reactants. those catalyst which increases or speed up the reaction are known as positive catalyst. Those slows the reaction are known as negative catalyst. Catalyst may act by decreasing activation energy of reaction or by choosing an alternate pathway for the reaction.