<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "Copper Oxide/Functionalized Graphene Hybrid Nanostructures for Room Temperature Gas Sensing Applications"^^ . "Oxide semiconductors are conventionally used as sensing materials in gas sensors, however, there are limitations on the detection of gases at room temperature (RT). In this work, a hybrid of copper oxide (CuO) with functionalized graphene (rGO) is proposed to achieve gas sensing at RT. The combination of a high surface area and the presence of many functional groups in the CuO/rGO hybrid material makes it highly sensitive for gas absorption and desorption. To prepare the hybrid material, a copper oxide suspension synthesized using a copper acetate precursor is added to a graphene oxide solution during its reduction using ascorbic acid. Material properties of the CuO/rGO hybrid and its drop-casted thin-films are investigated using Raman, FTIR, SEM, TEM, and four-point probe measurement systems. We found that the hybrid material was enriched with oxygen functional groups (OFGs) and defective sites, along with good electrical conductivity (Sheet resistance~1.5 kΩ/�). The fabricated QCM (quartz crystal microbalance) sensor with a thin layer of the CuO/rGO hybrid demonstrated a high sensing response which was twice the response of the rGO-based sensor for CO2 gas at RT. We believe that the CuO/rGO hybrid is highly suitable for existing and future gas sensors used for domestic and industrial safety. © 2022 by the authors. Licensee MDPI, Basel, Switzerland."^^ . "2022" . . "12" . "2" . . "MDPI"^^ . . . "Crystals"^^ . . . "20734352" . . . . . . . . . . . . . . . . "H.F."^^ . "Hawari"^^ . "H.F. Hawari"^^ . . "P."^^ . "Kumar"^^ . "P. Kumar"^^ . . "M."^^ . "Gupta"^^ . "M. Gupta"^^ . . "Z.A."^^ . "Burhanudin"^^ . "Z.A. Burhanudin"^^ . . . . . "HTML Summary of #17101 \n\nCopper Oxide/Functionalized Graphene Hybrid Nanostructures for Room Temperature Gas Sensing Applications\n\n" . "text/html" . .