Studies on QCM-type NO2 Gas Sensor Based on Graphene Composites at Room Temperature.

作者: PengJia Qi ,Ziying Wang ,Rui Wang ,Yinan Xu ,Tong
期刊: Chem. Res. Chin. Univ
卷号: 2016,32,924-928
接收日期: 2016-06-27 18:34:03
摘要 Abstract


Synthetic graphene composite was modified on a transducer of quartz crystal microbalance(QCM) to fabricate a gas sensor for low concentration nitrogen dioxide(NO2) detection. The gas sensing properties of the QCM coated with SnO2-rGO and AgNPs-SnO2-rGO composites were investigated when exposing QCM to low NO2 con-centration(2.05―20.5 mg/m3) atmosphere at room temperature. The sensing performances of the QCM with AgNPs-SnO2-rGO composites were enhanced by the introduction of Ag nanoparticles, and the QCM modified with AgNPs-SnO2-rGO composites could detect NO2 at room temperature.


Quartz crystal microbalanceNitrogen dioxideLow concentrationQrapheneRoom temperature