The method may include providing a reactor having {HEAD ~ catalytic material} in or on {TAIL ~ the inner surfaces} of the first plurality of cells 
in
The method may include providing a reactor having { HEAD ~ catalytic material } in or on { TAIL ~ the inner surfaces } of the first plurality of cells
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH