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Preparation of ZnO nanorod-based gas sensor and its ethanol gas sensing performance

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Abstract

ZnO nanorods were prepared by a simple hydrothermal method using Zn(NO3)2·6H2O as a precursor, NaOH as precipitant, anhydrous ethanol as solvent and ethylenediamine as a template. The morphology, size and structure were observed by scanning electron microscope, X-ray diffraction and Raman spectroscopy. The gas sensing response of ZnO nanorods to ethanol vapour was characterized by CGS-8 gas sensitivity analysis system. The results show that the response of ZnO nanorods-based gas sensor increases with the decrease of precursor concentration. The repeatability and concentration characteristics are good. The response of ZnO nanorods-based gas sensor is 33 when the concentration of Zn (NO3)2·6H2O is 0.1 mol·l−1. The optimal working temperature of the gas sensor is 275°C.

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Acknowledgement

This study was financially supported by the National Natural Science Foundation of China (Grant No. 62274141).

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Authors and Affiliations

  1. College of Chemical and Materials Engineering, Xuchang University, Xuchang, 461000, People’s Republic of China

    Yidong Zhang, Zhenwei Dong & Huimin Jia

Authors
  1. Yidong Zhang
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  2. Zhenwei Dong
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  3. Huimin Jia
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Correspondence to Yidong Zhang.

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Zhang, Y., Dong, Z. & Jia, H. Preparation of ZnO nanorod-based gas sensor and its ethanol gas sensing performance. Bull Mater Sci 46, 180 (2023). https://doi.org/10.1007/s12034-023-03024-z

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  • DOI: https://doi.org/10.1007/s12034-023-03024-z

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