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