Ultrahigh sensitivity acetone sensor based on Gd2O3/Fe2O3 loose microspheres at low temperature

  • Liting Du
  • Li Liu
  • Xiaonian Tang
  • Yu Li
  • Suyan Xu
  • Yimin Gong
  • Yang YangEmail author


Pure Fe2O3 microspheres and Gd2O3/Fe2O3 loose microspheres were synthesized successfully by a facile hydrothermal method and followed with calcined. The structure and elemental composition were provided by the X-ray powder diffraction (XRD) and energy-dispersive spectroscopy (EDS). Additionally, the morphology was characterized by scanning electron microscope (SEM) and transmission electron microscope (TEM), which show the loose surface state of Gd2O3/Fe2O3 microspheres. Finally, the property of the gas-sensing sensor based on Gd2O3/Fe2O3 loose microspheres was investigated systematically. It exhibits ultrahigh sensitivity of 268.6 to 100 ppm acetone at low operating temperature 220 °C, which is 9.8 times higher than the pure Fe2O3 microspheres sensor (27.5/100 ppm). Remarkably, the response of Gd2O3/Fe2O3 loose microspheres sensor to 0.1 ppm acetone is 2.3. Furthermore, the sensor shows fast response and recovery time (6/36 s) and splendid selectivity to acetone.



The work has been supported by the Jilin Provincial Science and Technology Department (No. 20170101199JC).


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Liting Du
    • 1
  • Li Liu
    • 1
  • Xiaonian Tang
    • 1
  • Yu Li
    • 1
  • Suyan Xu
    • 2
  • Yimin Gong
    • 1
  • Yang Yang
    • 1
    Email author
  1. 1.College of Physics, State Key Laboratory of Superhard MaterialsJilin UniversityChangchunPeople’s Republic of China
  2. 2.Dehui secondary vocational and technical schoolChangchunPeople’s Republic of China

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