A high-performance flexible NO2 sensor based on WO3 NPs decorated on MWCNTs and RGO hybrids on PI/PET substrates

Controllable synthesis and enhanced gas sensing properties of a single-crystalline WO3–rGO porous nanocomposite

“…We can notice that the composite enhances gas sensing response, especially with respect to working temperature, which is comparable to recent reports. 27,33,37 Also, the result indicates that the amount of rGO in the composite has an important role in NO 2 detection. By comparison, the responses of S1-20 sensor are superior to other sensors based on composites with other contents.…”

Improved Cl2 sensing characteristics of reduced graphene oxide when decorated with copper phthalocyanine nanoflowers

“…NO gas sensor with detection limit as low as 420 ppb with response time of 1000 s have been reported by Li et al 26 Inkjet printed rGO based Cl 2 sensor exhibited response time of 2-3 minutes and recovery time of 2 hours with detection limit of 100 ppm. 27 To overcome the issues of lower sensitivity, slow recovery time and detection limit in rGO based sensors, rGO has been functionalized with different metals, 28,29 metal oxides, [30][31][32] organic molecules 33,34 and polymers. 35,36 Such functionalization of rGO, not only improves the gas sensing parameters but also enhances their selectivity to a particular type of chemical species.…”

3D Architectured Graphene/Metal Oxide Hybrids for Gas Sensors: A Review

“…Construction of multilayer networks for GO can serve as a hierarchical space for the growth of MOx to form 3D architectured rGO/MOx hybrids [ 43 , 44 , 95 , 96 , 97 , 98 , 99 , 100 ]. Typically, a 3D rGO aerogel/ZnO spheres composite is produced via a facile solvothermal method [ 43 ].…”