Catalyst. What is catalyst function?. Catalyst function is providing an alternative reaction pathway with lower activation energy so that more reaction particles possess necessary energy to react. Modes of action of homogenous catalysts.
all the catalyst is exposed to the reaction
Easily removed from product by filtration
hard to reuse
only effective on the surface of productOutline disadvantages and advantages of homogeneous and heterogeneous catalysis
– will be catalyst produce only the desired product?
- will the catalyst cause a considerable increase in the rate?
- will it continue to work well under severe conditions, such as those experienced by catalytic converters in cars, as well as mild conditions
– will it be easy to dispose of the catalyst without causing harm to the environment?
Potential for poisoning – catalysts rely on reactant occupying the active site reversibly.
Cost – industry is profit –based.Discuss the factors in choosing a catalyst for a process