In one embodiment, phenolic resins, pyrolyzable binders, or {HEAD ~ other sources} of {TAIL ~ carbon} are used 
of
In one embodiment , phenolic resins , pyrolyzable binders , or { HEAD ~ other sources } of { TAIL ~ carbon } are used
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH