All industrial catalysts must have the following properties :
- It should adsorb one or more reactants sufficiently strongly.
- The adsorption must not be strong to prevent desorption of products.
For example :
Silver (Ag) — Doesn’t have strong adsorption properties.
Tungsten — Adsorbs very strongly so desorption will not occur. So, Ag and W are not considered as good catalyst but Pt and Ni fulfills both the conditions to become good catalyst.
The two most important considerations for a solid to become good catalyst are–
- High activity.
- Long term stability or durability.
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