Improved Cl 2 sensing characteristics of reduced graphene oxide when decorated with copper phthalocyanine nanoflowers

A novel gas sensing platform involving a hybrid of reduced graphene oxide (rGO) sheets with unsubstituted copper phthalocyanine (CuPc) nanoflowers has been explored as a room temperature ppb level chemiresistive chlorine (Cl ₂ ) sensor with a detection limit as low as 1.97 ppb.