Ti3C2Tx/SnO2P–N heterostructure construction boosts room-temperature detecting formaldehyde AITranslate
Abstract AITranslate
Formaldehyde is a common atmospheric pollutant produced in industrial production and daily life.However,the traditional semiconductor formaldehyde gas sensor cannot work at room temperature,which limits its practical application.Therefore,developing high-performance gas sensors for rapidly and accurately detecting formaldehyde at room temperature is an important topic.In this study,Ti3C2Tx/SnO2heterostructures were constructed,which could selectively detect formaldehyde at room temperature with a response value of 29.16%(10×10-6).In addition,the sensor shows a remarkable theoretical detection limit of 5.09×10-9and good longterm stability.Density functional theory(DFT)simulations reveal that SnO2nano spheres provide the majority of adsorption sites that strongly interact with formaldehyde.Meanwhile,Ti3C2Txacting as a conductive layer facilitates the transfer of charge carriers so that they show a sensing response to formaldehyde at room temperature.Moreover,the formation of p-n heterostructures between SnO2and Ti3C2Txboosts the Schottky barrier at the interface,which is the critical factor in enhancing the sensing properties by turning the Schottky barrier upon introducing formaldehyde gas.This perspective is expected to provide instructive guidance for utilizing MXene/metal oxide nanocomposites to improve the gas sensing performance at room temperature.
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Basic Information:
DOI:
Chinese Library Classification Number:TB33[一般工业技术—材料科学与工程];TP212[自动化与计算机技术—检测技术与自动化装置]
Citation Information:
Formaldehyde is a common atmospheric pollutant produced in industrial production and daily life.However,the traditional semiconductor formaldehyde gas sensor cannot work at room temperature,which limits its practical application.Therefore,developing high-performance gas sensors for rapidly and accurately detecting formaldehyde at room temperature is an important topic.In this study,Ti3C2Tx/SnO2heterostructures were constructed,which could selectively detect formaldehyde at room temperature with a response value of 29.16%(10×10-6).In addition,the sensor shows a remarkable theoretical detection limit of 5.09×10-9and good longterm stability.Density functional theory(DFT)simulations reveal that SnO2nano spheres provide the majority of adsorption sites that strongly interact with formaldehyde.Meanwhile,Ti3C2Txacting as a conductive layer facilitates the transfer of charge carriers so that they show a sensing response to formaldehyde at room temperature.Moreover,the formation of p-n heterostructures between SnO2and Ti3C2Txboosts the Schottky barrier at the interface,which is the critical factor in enhancing the sensing properties by turning the Schottky barrier upon introducing formaldehyde gas.This perspective is expected to provide instructive guidance for utilizing MXene/metal oxide nanocomposites to improve the gas sensing performance at room temperature.
quote
| GB/T 7714-2015 | [1] Yue Zhang, Ming-Yue Wang, Xiao-Guang San, et al. Rare Metals, 2024(1): 267-279. |
| MLA | [1] Yue Zhang, et al., Rare Metals, no. 1, 2024, pp. 267-279. |
| APA | [1] Yue Zhang, Ming-Yue Wang, Xiao-Guang San, Yan-Bai Shen, Guo-Sheng Wang, Lei Zhang, & Dan Meng. (2024). Rare Metals(1), 267-279. |
| IEEE | [1] Yue Zhang, Ming-Yue Wang, Xiao-Guang San, Yan-Bai Shen, Guo-Sheng Wang, Lei Zhang, and Dan Meng, Rare Metals, no. 1, pp. 267-279, 2024. |
