Abstract
Graphical abstract: - Highlights: • TiO{sub 2} nanotubes fabricated by anodizing of Ti thin films in aqueous HF electrolytes. • TiO{sub 2} nanotubes annealed at 300 °C and 700 °C to obtain anatase and rutile phases. • Electrical, optical and VOC gas sensing properties of the nanotubes investigated. • Dc conduction mechanism can be explained with the thermally activated conduction. • The sensor response of anatase was higher than that of rutile for almost all VOC gases. - Abstract: The dc electrical and volatile organic compound (VOC) sensing properties of TiO{sub 2} nanotubes in both anatase and rutile phases were investigated. TiO{sub 2} nanotube arrays were obtained in aqueous HF (0.5 wt.%) electrolytes by anodizing of Ti thin films that deposited on quartz substrates using thermal evaporation. Anodization was performed at 10 V in aqueous HF at 0 °C. Then the fabricated TiO{sub 2} nanotubes were annealed at 300 °C and at 700 °C under dry air for 5 h to obtain anatase and rutile phases, respectively. The TiO{sub 2} nanotubes were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) as structural, and UV–vis spectrophotometer as optical. The current voltage characteristics of the nanotubes under dry air flow revealed
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Sennik, Erdem;
[1]
Kilinc, Necmettin;
[1]
Nigde University, Mechatronics Engineering Department, 51245 Nigde (Turkey)];
Ozturk, Zafer Ziya;
[1]
TÜBITAK-Marmara Research Center, Materials Institute, Kocaeli (Turkey)]
- Gebze Institute of Technology, Department of Physics, Kocaeli (Turkey)
Citation Formats
Sennik, Erdem, Kilinc, Necmettin, Nigde University, Mechatronics Engineering Department, 51245 Nigde (Turkey)], Ozturk, Zafer Ziya, and TÜBITAK-Marmara Research Center, Materials Institute, Kocaeli (Turkey)].
Electrical and VOC sensing properties of anatase and rutile TiO{sub 2} nanotubes.
Netherlands: N. p.,
2014.
Web.
doi:10.1016/J.JALLCOM.2014.07.097.
Sennik, Erdem, Kilinc, Necmettin, Nigde University, Mechatronics Engineering Department, 51245 Nigde (Turkey)], Ozturk, Zafer Ziya, & TÜBITAK-Marmara Research Center, Materials Institute, Kocaeli (Turkey)].
Electrical and VOC sensing properties of anatase and rutile TiO{sub 2} nanotubes.
Netherlands.
https://doi.org/10.1016/J.JALLCOM.2014.07.097
Sennik, Erdem, Kilinc, Necmettin, Nigde University, Mechatronics Engineering Department, 51245 Nigde (Turkey)], Ozturk, Zafer Ziya, and TÜBITAK-Marmara Research Center, Materials Institute, Kocaeli (Turkey)].
2014.
"Electrical and VOC sensing properties of anatase and rutile TiO{sub 2} nanotubes."
Netherlands.
https://doi.org/10.1016/J.JALLCOM.2014.07.097.
@misc{etde_22439070,
title = {Electrical and VOC sensing properties of anatase and rutile TiO{sub 2} nanotubes}
author = {Sennik, Erdem, Kilinc, Necmettin, Nigde University, Mechatronics Engineering Department, 51245 Nigde (Turkey)], Ozturk, Zafer Ziya, and TÜBITAK-Marmara Research Center, Materials Institute, Kocaeli (Turkey)]}
abstractNote = {Graphical abstract: - Highlights: • TiO{sub 2} nanotubes fabricated by anodizing of Ti thin films in aqueous HF electrolytes. • TiO{sub 2} nanotubes annealed at 300 °C and 700 °C to obtain anatase and rutile phases. • Electrical, optical and VOC gas sensing properties of the nanotubes investigated. • Dc conduction mechanism can be explained with the thermally activated conduction. • The sensor response of anatase was higher than that of rutile for almost all VOC gases. - Abstract: The dc electrical and volatile organic compound (VOC) sensing properties of TiO{sub 2} nanotubes in both anatase and rutile phases were investigated. TiO{sub 2} nanotube arrays were obtained in aqueous HF (0.5 wt.%) electrolytes by anodizing of Ti thin films that deposited on quartz substrates using thermal evaporation. Anodization was performed at 10 V in aqueous HF at 0 °C. Then the fabricated TiO{sub 2} nanotubes were annealed at 300 °C and at 700 °C under dry air for 5 h to obtain anatase and rutile phases, respectively. The TiO{sub 2} nanotubes were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) as structural, and UV–vis spectrophotometer as optical. The current voltage characteristics of the nanotubes under dry air flow revealed that the conductivity of the sample with anatase phase was higher than that of the sample with rutile phase. The VOCs sensing properties of the nanotubes were investigated at 200 °C. It was found that the sensor response of anatase was higher than that of rutile for almost all VOC gases. On the other hand, the sensitivities of two sensors are the highest for isopropyl alcohol.}
doi = {10.1016/J.JALLCOM.2014.07.097}
journal = []
volume = {616}
journal type = {AC}
place = {Netherlands}
year = {2014}
month = {Dec}
}
title = {Electrical and VOC sensing properties of anatase and rutile TiO{sub 2} nanotubes}
author = {Sennik, Erdem, Kilinc, Necmettin, Nigde University, Mechatronics Engineering Department, 51245 Nigde (Turkey)], Ozturk, Zafer Ziya, and TÜBITAK-Marmara Research Center, Materials Institute, Kocaeli (Turkey)]}
abstractNote = {Graphical abstract: - Highlights: • TiO{sub 2} nanotubes fabricated by anodizing of Ti thin films in aqueous HF electrolytes. • TiO{sub 2} nanotubes annealed at 300 °C and 700 °C to obtain anatase and rutile phases. • Electrical, optical and VOC gas sensing properties of the nanotubes investigated. • Dc conduction mechanism can be explained with the thermally activated conduction. • The sensor response of anatase was higher than that of rutile for almost all VOC gases. - Abstract: The dc electrical and volatile organic compound (VOC) sensing properties of TiO{sub 2} nanotubes in both anatase and rutile phases were investigated. TiO{sub 2} nanotube arrays were obtained in aqueous HF (0.5 wt.%) electrolytes by anodizing of Ti thin films that deposited on quartz substrates using thermal evaporation. Anodization was performed at 10 V in aqueous HF at 0 °C. Then the fabricated TiO{sub 2} nanotubes were annealed at 300 °C and at 700 °C under dry air for 5 h to obtain anatase and rutile phases, respectively. The TiO{sub 2} nanotubes were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) as structural, and UV–vis spectrophotometer as optical. The current voltage characteristics of the nanotubes under dry air flow revealed that the conductivity of the sample with anatase phase was higher than that of the sample with rutile phase. The VOCs sensing properties of the nanotubes were investigated at 200 °C. It was found that the sensor response of anatase was higher than that of rutile for almost all VOC gases. On the other hand, the sensitivities of two sensors are the highest for isopropyl alcohol.}
doi = {10.1016/J.JALLCOM.2014.07.097}
journal = []
volume = {616}
journal type = {AC}
place = {Netherlands}
year = {2014}
month = {Dec}
}