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

Hydrogen sensing properties of Pd loaded TiO2 nanorods

Serkan BÜYÜKKÖSE
Pages
118–130
Publication Date
2022-11-01
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The effect of temperature dependence on sensor response and the influence of the metal loading forhydrogen sensing are presented and discussed

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The hydrogen sensing performance of palladium (Pd) catalyst loaded TiO2nanorods based sensors wereinvestigated.
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Key Findings & Data:TiO2nanorods were grown on Al2O3substrate by a facile hydrothermal process.
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Conclusion & Impact:The effect of temperature dependence on sensor response and the influence of the metal loading forhydrogen sensing are presented and discussed
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

The hydrogen sensing performance of palladium (Pd) catalyst loaded TiO2nanorods based sensors wereinvestigated. TiO2nanorods were grown on Al2O3substrate by a facile hydrothermal process. TiO2nanorods (NRs)were functionalized with Pd metal by RF magnetron sputtering. Samples were characterized by X-ray diffraction (XRD)and scanning electron microscopy (SEM) techniques for structural and morphological analysis. Sensor measurementstoward H2and some volatile organic compounds (VOCs) such as acetone, ethanol, xylene and toluene were performedby varying gas concentrations at different temperatures. The sensors were found to exhibit excellent sensitivities towardsdifferent hydrogen concentrations ranging from 25 to 1000 ppm in air. The effects of different operating temperatureson the sensing performance of the devices were studied in the range of 100–200◦C. It was observed that the 2 nm Pd–loaded and 4 nm Pd-loaded sensors were approximately 12 and 44 times more sensitive than the pristine TiO2nanorodssensor, respectively. The effect of temperature dependence on sensor response and the influence of the metal loading forhydrogen sensing are presented and discussed

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Cite This Article

BÜYÜKKÖSE, S. (2022). Hydrogen sensing properties of Pd loaded TiO2 nanorods. Turkish Journal of Physics, Cilt: 45 - Sayı: 2, 118–130. https://ajindex.com/articles/613899

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