Low-concentration and high-efficiency detection of triethylamine (TEA) based on Sn-doped WO3 gas sensors

Vacuum, Год журнала: 2025, Номер unknown, С. 114266 - 114266

Опубликована: Март 1, 2025

Язык: Английский

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Facile synthesis of an α-Fe₂O₃–TiO₂-MXene heterojunction for enhanced acetone gas sensors

RSC Advances, Год журнала: 2025, Номер 15(4), С. 3040 - 3046

Опубликована: Янв. 1, 2025

Acetone is harmful to the environment and human health. Therefore, research on acetone sensors for its high-efficiency detection necessary. Herein, an α-Fe2O3-TiO2-MXene heterojunction was synthesized using a simple precipitation method, sensitivity towards systematically investigated. The response value of sensor based 50 ppm 24 at 150 °C, which more than one-quarter that pure α-Fe2O3 (5.3). best recovery time were 10 s 6 s, respectively. also showed good stability selectivity. excellent gas mainly attributed formation heterojunctions, improved carrier-transport efficiency specific surface area molecular adsorption.

Язык: Английский

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A UV-Photon-Energy-Integrated Gas Sensor Based on Pt-Nanoparticle-Decorated TiO2 Nanorods for Room-Temperature Hydrogen Detection

Chemosensors, Год журнала: 2025, Номер 13(5), С. 177 - 177

Опубликована: Май 11, 2025

Hydrogen sensors play a crucial role in ensuring safety various industrial applications. In this study, we demonstrated the use of room-temperature hydrogen gas sensor based on Pt-nanoparticle-decorated TiO2 nanorods (TiO2 NRs/Pt NP). The NRs were synthesized via hydrothermal method, followed by Pt deposition using sputtering and thermal annealing. Under UV illumination, NR/Pt NP exhibited remarkable response 2.4 at 1% concentration, which is approximately 5.9 times higher than that bare measured dark. This enhancement attributed to synergistic effect NPs, promote charge separation spillover for oxygen molecules, activation, generates additional carriers. Moreover, stable reliable detection concentrations up without need external heating, underscoring its practical applicability under ambient conditions. These results demonstrate NP, combined with provide promising approach highly sensitive detection, offering significant potential monitoring energy systems.

Язык: Английский

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Introducing oxygen vacancies into WO3 thin film for improving hydrogen sensing performance of Pd/WO3-x/AAO sensors

Sensors and Actuators B Chemical, Год журнала: 2024, Номер unknown, С. 136843 - 136843

Опубликована: Окт. 1, 2024

Язык: Английский

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