Assertion: catalyst | /r/HasProperty | heterogeneous
Facets:
Source sentences:
text: Catalysts can be heterogeneous or homogeneous, depending on whether a catalyst exists in the same phase as the substrate.
text: If the catalyst exists in the same phase as the reactants it is said to be homogenous; otherwise it is heterogeneous.
text: The susceptibility of a noble metal-based catalyst to poisoning by elemental mercury is a common proof that the catalyst is heterogeneous.
text: Catalysts can be either heterogeneous or homogeneous.