The reactants must first cross the mountain

Chemical reactions are not just about which reactants or products are more stable, but also go through a high-energy state in the middle. This height that needs to be crossed is often referred to as activation energy.

Catalyst offers a low-slope route

Catalysts allow the reaction to take another path with a lower activation energy by adsorbing, changing the local structure, or providing new intermediates. It changes the speed, not the final equilibrium position of the reaction.

The surface is the reaction field

In automobile exhaust purification, ammonia synthesis and fuel cells, the surface structure, pore size and active sites of the catalyst will directly determine the efficiency.