Design of superior ethanol gas sensor based on indium oxide/molybdenum disulfide nanocomposite via hydrothermal route

• DOI: 10.1016/j.apsusc.2018.03.116
• Publication Date: 2018-03-15T18:56:24Z
• Authors: Xiaojing Liu; Li Jiang; Xiumei Jiang; Xueying Tian; Ying Huang; Peiyu Hou; Shouwei Zhang; Xijin Xu
• Keywords: Molybdenum disulfide

Abstract This paper demonstrates an ethanol gas sensor based on indium oxide/molybdenum disulfide (In2O3/MoS2) nanocomposite via hydrothermal route. The microstructure and micromorphology of In2O3/MoS2 nanocomposite were fully characterized by various analytical techniques. The gas-sensing properties of the In2O3/MoS2 composite were investigated upon exposure to different concentrations of ethanol gas from 1 ppm to 50 ppm at the optimum temperature, and compared with the pristine In2O3 sensors. Owing to the supporting substrate of specific two-dimensional MoS2 nanosheets, the sensor based on In2O3/MoS2 composite exhibit superior gas sensing performance towards ethanol, which outstripped that of pure In2O3 sensor and have potential applications in the detection of ethanol vapors.