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has been cited by the following article:

• TITLE: Influence of Mn Doping on the Sensing Properties of SnO2 Nanobelt to Ethanol

  AUTHORS: Jieqing Huang, Yingkai Liu, Yuemei Wu, Xinmin Li

  KEYWORDS: SnO2 Nanobelts, Mn3+ Doping, Gas Sensor, Single Nanobelt Device

  JOURNAL NAME: American Journal of Analytical Chemistry, Vol.8 No.1, January 12, 2017

  ABSTRACT: Mn doped SnO2 nanobelts (Mn:SnO2 NBs) and pure SnO2 nanobelts (SnO2 NBs) were synthesized by thermal evaporation technique at 1355°C with Ar carrier gas (25 sccm, 150 Torr). The SEM, EDS, XRD, TEM, HRTEM, SAED, XPS, UV-Vis techniques were used to characterize the attained samples. The band gap of Mn doped SnO2 NBs by UV-Vis was measured to be 3.43 eV at room temperature, lower than that of the pure counterpart with ~3.66 eV. Mn:SnO2 NB and pure SnO2 NB sensors were developed. It is found that Mn:SnO2 NB device exhibits a higher sensitivity with 62.12% to 100 ppm of ethanol at 210°C, which is the highest sensitivity among the three tested VOC gases (ethanol, ethanediol, and acetone). The theoretical detection limit for ethanol of the sensor is 1.1 ppm. The higher response is related to the selective catalysis of the doped Mn ions.