Either intermediary product may be further processed: a) in air to produce metal oxide b) in {HEAD ~ an inert environment} to produce {TAIL ~ 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 air to produce metal oxide b ) in { HEAD ~ an inert environment } to produce { TAIL ~ 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 OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD 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