{HEAD ~ Elemental metals} or oxides distributed on {TAIL ~ a carbon substrate} or self supported and the manufacturing process using graphite oxide as template 
{ HEAD ~ Elemental metals } or oxides distributed on { TAIL ~ a carbon substrate } or self supported and the manufacturing process using graphite oxide as template
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH