Humidity sensing properties of CeO2–NiO nanocomposite materials



CeO2–NiO composites were prepared by a simple grind method followed by a heat-treatment process and characterized by X-ray diffraction, transmission electron microscope and nitrogen adsorption–desorption test. Humidity sensing properties of CeO2–NiO composites with different mass ratios were studied. The optimal result was obtained for the sample with CeO2–NiO mass ratio of 0.5. The impedance of the sensor changes more than five orders of magnitude within the humidity range from 11 to 95 % relative humidity (RH) at 100 Hz. The response and recovery time are about 3 and 19 s respectively, and the maximum hysteresis is <2 % RH. The results indicate the potential applications of CeO2–NiO composite (CeO2–NiO mass ratio of 0.5) for fabricating high performance humidity sensors.


CeO2 Humidity Sensor Saturated Salt Solution Relative Humidity Range Mesoporous CeO2 



The authors are grateful to National Natural Science Foundation of China (Grant Nos. 61404058, 51303061), the National High Technology Research and Development Program of China (Grant No. 2013AA030902), Project of Science and Technology Plan of Changchun City (Grant Nos. 14KG020, 14KG019), and the Opened Fund of the State Key Laboratory on Integrated Optoelectronics (No. IOSKL2013KF10) for the supports to the work.


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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.State Key Laboratory on Integrated OptoelectronicsChangchunPeople’s Republic of China
  2. 2.College of Electronic Science and EngineeringChangchunPeople’s Republic of China

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