Assertion: catalyst's platinum | /r/HasProperty | the most common catalyst
Facets:
value: currently
type: TEMPORAL
Source sentences:
text: Platinum is currently the most common catalyst for this application, however, it is expensive and rare, so a lot of research has been going into maximizing the catalytic properties of other metals by shrinking them to nanoparticles in the hope that someday they will be an efficient and economic alternative to platinum.