用于窄带隙能量效应及其气敏性能的聚吡咯键合四元半导体LiCuMoO-石墨烯纳米复合材料

Polypyrrole-Bonded Quaternary Semiconductor LiCuMoO-Graphene Nanocomposite for a Narrow Band Gap Energy Effect and Its Gas-Sensing Performance.

作者信息

Oh Won-Chun, Fatema Kamrun Nahar, Liu Yin, Jung Chong Hun, Sagadevan Suresh, Biswas Md Rokon Ud Dowla

机构信息

College of Materials Science and Engineering, Anhui University of Science & Technology, Huainan 232001, PR China.

Department of Advanced Materials Science & Engineering, Hanseo University, Seosan-si, Chungcheongnam-do 31962, South Korea.

出版信息

ACS Omega. 2020 Jul 7;5(28):17337-17346. doi: 10.1021/acsomega.0c01699. eCollection 2020 Jul 21.

In this study, we demonstrate the fabrication and characterization of a new quaternary semiconductor nanocomposite of LiCuMoO/graphene oxide/polypyrrole (LCMGP) via a hydrothermal method and testing of an NH and HSO sensor operating in gaseous states at room temperature. We used X-ray diffraction, transmission electron microscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy to characterize the properties of LCMGP nanostructures. Our sensor is capable of detecting NH and HSO and quantifying their concentration in the gas flow. These results have been confirmed by exposing the sensor to different concentrations of NH and HSO (100-1000 ppm). The obtained results confirm the exceptional sensing properties of the graphene-polymer-combined quaternary semiconductor nanocomposite related to the oxidation-reduction process that can be used for detection, identification, and quantification purposes.

在本研究中，我们展示了通过水热法制备新型LiCuMoO/氧化石墨烯/聚吡咯（LCMGP）四元半导体纳米复合材料及其表征，并测试了在室温气态下工作的NH₃和H₂SO₄传感器。我们使用X射线衍射、透射电子显微镜、扫描电子显微镜、能量色散X射线光谱和X射线光电子能谱来表征LCMGP纳米结构的性质。我们的传感器能够检测NH₃和H₂SO₄并量化它们在气流中的浓度。通过将传感器暴露于不同浓度的NH₃和H₂SO₄（100 - 1000 ppm），这些结果得到了证实。所获得的结果证实了与氧化还原过程相关的石墨烯 - 聚合物复合四元半导体纳米复合材料具有卓越的传感特性，可用于检测、识别和定量目的。