For synthesizing high-quality large-area graphene on a low-cost Cu foil, a CVD system consisting of a 160 cm long furnace with a uniform heating zone of 110 cm, a gas delivery, and a pressure management subsystem was developed (Figure , b, Figure ). Two dumbbell-shaped blocks made of Cu are placed at the end of the reactor as radiation shields to prevent excessive heating of flanges sealing the reactor. Two large coupons of Cu foils, each with a size of 11 × 26 cm 2 , could be introduced for graphene synthesis (Figure ).