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Ethanol Sensors Based on Porous In2O3 Nanosheet-Assembled Micro-Flowers

التفاصيل البيبلوغرافية
العنوان: Ethanol Sensors Based on Porous In2O3 Nanosheet-Assembled Micro-Flowers
المؤلفون: Wenbo Qin, Zhenyu Yuan, Hongliang Gao, Fanli Meng
المصدر: Sensors, Vol 20, Iss 12, p 3353 (2020)
بيانات النشر: MDPI AG, 2020.
سنة النشر: 2020
المجموعة: LCC:Chemical technology
مصطلحات موضوعية: In2O3, nanosheet-assembled micro-flowers, hydrothermal method, ethanol, gas sensors, Chemical technology, TP1-1185
الوصف: By controlling the hydrothermal time, porous In2O3 nanosheet-assembled micro-flowers were successfully synthesized by a one-step method. The crystal structure, microstructure, and internal structure of the prepared samples were represented by an x-ray structure diffractometry, scanning electron microscopy, and transmission electron microscopy, respectively. The characterization results showed that when the hydrothermal time was 8 h, the In2O3 nano materials presented a flower-like structure assembled by In2O3 porous nanosheets. After successfully preparing the In2O3 gas sensor, the gas sensing was fully studied. The results show that the In2O3 gas sensor had an excellent gas sensing response to ethanol, and the material prepared under 8 h hydrothermal conditions had the best gas sensing property. At the optimum working temperature of 270 °C, the highest response value could reach 66, with a response time of 12.4 s and recovery time of 10.4 s, respectively. In addition, the prepared In2O3 gas sensor had a wide detection range for ethanol concentration, and still had obvious response for 500 ppb ethanol. Furthermore, the gas sensing mechanism of In2O3 micro-flowers was also studied in detail.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 20123353
1424-8220
Relation: https://www.mdpi.com/1424-8220/20/12/3353; https://doaj.org/toc/1424-8220
DOI: 10.3390/s20123353
URL الوصول: https://doaj.org/article/31728078413e45d4a74aa062855487d2
رقم الأكسشن: edsdoj.31728078413e45d4a74aa062855487d2
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20123353
14248220
DOI:10.3390/s20123353