Key Opinion Leaders (KOLs) in the field of Catalysis are highly respected individuals known for their significant contributions to the scientific community. They are often researchers, professors, or industrial experts who have made groundbreaking discoveries and advances. Examples include figures such as Professor John B. Goodenough, who won the Nobel Prize in Chemistry for his work on lithium-ion batteries, and Professor Robert H. Grubbs, known for his work on metathesis in organic synthesis.