Either intermediary product may be further processed: a) in {HEAD ~ air} to produce {TAIL ~ metal oxide} b) in an inert environment to produce metal oxide on carbon substrate c) in a reducing environment to produce elemental metal distributed on carbon substrate 
to produce
Either intermediary product may be further processed : a ) in { HEAD ~ air } to produce { TAIL ~ metal oxide } b ) in an inert environment to produce metal oxide on carbon substrate c ) in a reducing environment to produce elemental metal distributed on carbon substrate
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH