It is carried optimally on a high surface area support material like alumina which often includes various promoters and {HEAD ~ stabilizers} such as ceria, barium oxide, lanthanum oxide, or {TAIL ~ strontium} 
such as
It is carried optimally on a high surface area support material like alumina which often includes various promoters and { HEAD ~ stabilizers } such as ceria , barium oxide , lanthanum oxide , or { TAIL ~ strontium }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL