What is the difference between a catalyst and a promoter?

Asked by mkp400 | 21st Oct, 2017, 08:23: PM

Expert Answer:

A catalyst is a substance which decreases the activation energy of a chemical reaction without itself being changed at the end of the chemical reaction.
A promoter is an accelerator of catalysis, but not a catalyst by itself.
Promoter is a material that enhances the action of a catalyst without actually having any catalytic value itself.

Answered by Prachi Sawant | 23rd Oct, 2017, 09:32: AM