Abstract
Ethanol is a versatile but volatile chemical that may threaten both industrial safety and human health. To address the need for improved detection and monitoring of ethanol leakage and concentration, we successfully synthesized indium-doped ZnO (In-ZnO) with a hollow nanocage structure through the hydrothermal method and calcination, effectively expanding the specific surface area from 9.54 to 18.45 m2 g−1, increasing the proportion of absorbed oxygen from 5.6% to 9.4% and that of oxygen vacancies from 32.7% to 38.5%, and promoting the interaction between ethanol molecules and active sites. Our optimized doping of 1% In-ZnO exhibited a substantial increase in its responsiveness when exposed to 100 ppm ethanol at 328 °C (R = 313.8). This outcome stands as a pivotal reference point for the development of sensor materials characterized by superior performance.
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Data are available on request from the authors. The data that support the findings of this study are available from the corresponding author, upon reasonable request.
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Funding
This work was supported by the National Natural Science Foundation of China, China (No. 61974057, 50272026), Applied Research and Development Project of Gansu Academy of Sciences, China (No. 2018JK-02) and Technological Project of Chengguan District of Lanzhou, China (No. 2019RCCX0007).
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Yi, M., Li, H., Huang, D. et al. ZIF-8-derived ZnO doped with In for high-performance ethanol gas sensor. J Mater Sci: Mater Electron 35, 342 (2024). https://doi.org/10.1007/s10854-024-12062-0
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DOI: https://doi.org/10.1007/s10854-024-12062-0