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Highly sensitive ethanol gas sensor based on In2O3 spheres

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Abstract

In2O3 spheres were successfully prepared by nitric acid-assisted solvothermal method. The morphology and structure of the products can be controlled by the content of nitric acid. After adding with nitric acid, the sensing performance of In2O3 has been improved. In particular, the In2O3 spheres with partial broken structures prepared with 100 μL nitric acid show high response of 250 to 50 ppm ethanol at the operating temperature of 250 °C and exhibit good selectivity and stability.

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Funding

This work was supported by the National Natural Science Foundation of China (Nos. 51802276, 21878257).

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Authors and Affiliations

  1. Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng, 224051, People’s Republic of China

    Chao Shen, Rongfeng Guan, Lu Yue & Wenhui Zhang

  2. School of Mechanical Engineering, Yancheng Institute of Technology, Yancheng, 224051, Jiangsu, China

    Ning Xu

Authors
  1. Chao Shen
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  2. Ning Xu
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  3. Rongfeng Guan
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  4. Lu Yue
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  5. Wenhui Zhang
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Correspondence to Lu Yue or Wenhui Zhang.

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Shen, C., Xu, N., Guan, R. et al. Highly sensitive ethanol gas sensor based on In2O3 spheres. Ionics 27, 3647–3653 (2021). https://doi.org/10.1007/s11581-021-04057-2

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  • DOI: https://doi.org/10.1007/s11581-021-04057-2

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