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Journals / Turkish Journal of Chemistry / 2021 / Cilt: 45 - Sayı: 2

Enhanced ethanol sensing properties of WO3 modified $TiO_2$ nanorods

Serkan BÜYÜKKÖSE
Bekzat ABDIKADYR
Alp KILIÇ
Onur ALEV
Zafer Ziya ÖZTÜRK
Pages
295–306
Publication Date
2022-11-01
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

Experimental results demonstrated that the heterostructure has better sensor response toward ethanol at 200 °C.

📌 3 Key Takeaways

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Objective & Hypothesis:Pristine and WO3 decorated $TiO_2$ nanorods (NRs) were synthesised to investigate n-n-type heterojunction gas sensing properties. $TiO_2$ NRs were fabricated via hydrothermal method on fluorine-doped tin oxide coated glass (FTO) substrates.
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Key Findings & Data:Then, tungsten was sputtered on the $TiO_2$ NRs and thermally oxidised to obtain WO3 nanoparticles.
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Conclusion & Impact:Experimental results demonstrated that the heterostructure has better sensor response toward ethanol at 200 °C.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Pristine and WO3 decorated $TiO_2$ nanorods (NRs) were synthesised to investigate n-n-type heterojunction gas sensing properties. $TiO_2$ NRs were fabricated via hydrothermal method on fluorine-doped tin oxide coated glass (FTO) substrates. Then, tungsten was sputtered on the $TiO_2$ NRs and thermally oxidised to obtain WO3 nanoparticles. The heterostructure was characterised by X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray (EDX) spectroscopy. Fabricated sensor devices were exposed to VOCs such as toluene, xylene, acetone and ethanol, and humidity at different operation temperatures. Experimental results demonstrated that the heterostructure has better sensor response toward ethanol at 200 °C. Enhanced sensing properties are attributed to the heterojunction formation by decorating $TiO_2$ NRs with WO3

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Cite This Article

BÜYÜKKÖSE, S., ABDIKADYR, B., KILIÇ, A., ALEV, O., ÖZTÜRK, Z. Z. (2022). Enhanced ethanol sensing properties of WO3 modified $TiO_2$ nanorods. Turkish Journal of Chemistry, Cilt: 45 - Sayı: 2, 295–306. https://ajindex.com/articles/601481

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