Assertion: heavy metal | /r/ObjectUse | used as catalyst
Facets:
value: in fuel processing
type: LOCATION
Source sentences:
text: Selected heavy metals are used as catalysts in fuel processing (rhenium, for example), synthetic rubber and fibre production (bismuth), emission control devices (palladium), and in self-cleaning ovens (where cerium(IV) oxide in the walls of such ovens helps oxidise carbon-based cooking residues).