دورية أكاديمية
Effect of annealing temperature on the characteristic of reduced highly ordered TiO2 nanotube arrays and their CO gas-sensing performance
| العنوان: | Effect of annealing temperature on the characteristic of reduced highly ordered TiO2 nanotube arrays and their CO gas-sensing performance |
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| المؤلفون: | Budiman Harry, Wibowo Rahmat, Zuas Oman, Gunlazuardi Jarnuzi |
| المصدر: | Processing and Application of Ceramics, Vol 15, Iss 4, Pp 417-427 (2021) |
| بيانات النشر: | University of Novi Sad, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Clay industries. Ceramics. Glass |
| مصطلحات موضوعية: | titania, anodization, nanotube, calcination, carbon monoxide, gas sensor, Clay industries. Ceramics. Glass, TP785-869 |
| الوصف: | A study on the effect of temperature on the reduced highly ordered TiO2 nanotube arrays (reduced-HOTNAs) and their CO gas-sensing performance is reported. The reduced-HOTNAs were prepared by anodizing method followed by annealing in the presence of urea at various temperatures (i.e. 450, 500, 550, 600 and 700°C) under N2 atmosphere. The reduced-HOTNAs were characterized by FTIR, FE-SEM, XRD, UV-Vis DRS, Raman spectroscopy and photoelectrochemical techniques. The sensing performance of the reduced-HOTNAs was assessed against CO gas in air mixture. The results show that the reduced-HOTNAs annealed at 450 °C (reduced- HOTNAs-450) is a material with the most significant improvement in sensitivity to detect CO compared with other reduced-HOTNAs. The reduced-HOTNAs-450 exhibits best sensing performance at a relatively low CO concentration in the range of 2-25 ppm at 300°C. Findings of this study indicate that improvement of the reduced-HOTNAs-450 sensitivity might be attributed to the presence of Ti3+/oxygen vacancy defect and the formation of more active sites on TiO2 surface, making the reduced-HOTNAs-450 a promising active material for CO gas sensor application. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1820-6131 2406-1034 |
| Relation: | https://doaj.org/toc/1820-6131; https://doaj.org/toc/2406-1034 |
| DOI: | 10.2298/PAC2104417B |
| URL الوصول: | https://doaj.org/article/d4568c4f542e45d58a163c2bc5d06a6a |
| رقم الأكسشن: | edsdoj.4568c4f542e45d58a163c2bc5d06a6a |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 18206131 24061034 |
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| DOI: | 10.2298/PAC2104417B |