wherein the graphene extending in a network form from {TAIL ~ the junction} is between {HEAD ~ the fine catalytic metal particles} 
wherein the graphene extending in a network form from { TAIL ~ the junction } is between { HEAD ~ the fine catalytic metal particles }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD