Assertion: actinium's application | /r/HasProperty | as catalytic converter
Facets:
value: for the oxidation of co
type: PURPOSE
Source sentences:
text: Major automotive applications for the lower sesquioxide are as a catalytic converter for the oxidation of CO and NO x emissions in the exhaust gases from motor vehicles, Ceria has also been used as a substitute for its radioactive congener thoria, for example in the manufacture of electrodes used in gas tungsten arc welding, where ceria as an alloying element improves arc stability and ease of starting while decreasing burn-off.