Sensing behavior of SnO2/reduced graphene oxide nanocomposites toward NO2

Synthesis and Characterization of Nanocomposites Tin Oxide-Graphene Doping Pd Using Polyol Method

“…On the other hand, graphene is also widely applied in gas sensors such as in NO2 gas sensor [16][17][18][19], methane [11], alcohol [20][21][22] and vaporized water. Graphene shows some excellent performances such as ultrahigh sensitivity at extremely low concentrations, high specificity, fast response and recovery, low power consumption, room temperature operation and good reversibility [16]. The combination of the metal oxidegraphene in composite with the doping of noble metal is believed to yield high-performance sensor in the low region operating temperature.…”

Self-heating effects in large arrangements of randomly oriented carbon nanofibers: Application to gas sensors

“…In the second case, an efficient light source (such as a LED) is integrated in the sensor device reaching power needs comparable to those of conventionally heated sensors [5][6][7][8]. In the third case, sensor active layer functionalization [9,10], material decoration [11,12] and the use of hybrid materials [11,13,14] are traditional strategies to enhance and modify the active film properties, and hence the gas-surface interaction mechanism. In one way or another, state of the art gas sensors still require more than 10-100 mW (research devices) to maintain the elevated temperatures for good sensing performance, which limits their use in mobile distributed systems [15].…”

Three-Dimensional Mesoporous Graphene Aerogel-Supported SnO2 Nanocrystals for High-Performance NO2 Gas Sensing at Low Temperature

“…13,23 Third, compared with pure SnO 2 semiconductor materials, the resistance of SnO 2 / graphene can be reduced by several orders of magnitude. 15 However, previous work focused on simple graphene nanosheet-supported SnO 2 materials. To the best of our knowledge, there is no study on gas sensing performance of 3D graphene aerogel-supported SnO 2 hybrids, and there is no report on the influence of metal salt precursor (Sn 2+ , Sn 4+ ) on the structure of product and the gas sensing properties.…”