ZnO-Loaded Graphene for NO2 Gas Sensing. - Mohamed Ayoub Alouani; Juan Casanova-Cháfer; Frank Güell; Elisa Peña-Martín; Sara Ruiz-Martínez-Alcocer; Santiago de Bernardi-Martín; Alejandra García-Gómez; Xavier Vilanova; Eduard Llobet (Sensors, 2023)