Constructing bilayer sensors with Co-MOF-derived Co3O4 porous sensing films and SnO2 catalytic overlayers to enhance room-temperature triethylamine sensing performance

Chen, Xuehua; Qin, Chao; Zheng, Zheyang; Chi, Hanwen; Ye, Zhizhen; Zhu, Liping

doi:10.1016/j.ceramint.2023.03.276

Cited by 10 publications

(2 citation statements)

References 40 publications

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“…When ethanol is injected, the resistance of both sensors decreases, indicating that the sensors are characterized as n-type semiconductors. 37 The response of the sensor depends on the sensor resistance variety, when the resistance change amplitude of In0.1Fe is greater than the resistance change amplitude of In0Fe, the response of the In0.1Fe will be significantly higher than that of In0Fe. Therefore, the In0.1Fe has a high sensitivity to ethanol.…”

Section: Paper Pccpmentioning

confidence: 99%

In-MIL-68 derived In₂O₃/Fe₂O₃ shuttle-like structures with n–n heterojunctions to improve ethanol sensing performance

Liu,

Zhang,

Yue

et al. 2024

Phys. Chem. Chem. Phys.

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Section: Paper Pccpmentioning

confidence: 99%

In-MIL-68 derived In₂O₃/Fe₂O₃ shuttle-like structures with n–n heterojunctions to improve ethanol sensing performance

Liu,

Zhang,

Yue

et al. 2024

Phys. Chem. Chem. Phys.

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“…Our previous research also indicated that the Co 3 O 4 exposed (110) crystal surface exhibits better selectivity characteristics than the (111) surface. There are several methods ,, that can modify the materials and improve their sensing properties. Element doping is also an effective way of modifying the performance of metal oxide semiconductor gas sensors. − …”

Section: Introductionmentioning

confidence: 99%

Density Functional Theory Study of P-Doped Co₃O₄(111) Facets for HCHO Adsorption: Implications for Metal Oxide Semiconductor Gas Sensors

Li,

Zhang,

Dong

et al. 2023

ACS Appl. Nano Mater.

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Volatile organic compounds (VOCs) pose a significant threat to human health, and it is essential to develop advanced VOC gas sensors by understanding the mechanisms. Metal oxide semiconductor gas sensors have the advantages of high sensitivity, high-temperature resistance, stability, and safety. The rational design of crystal facets and doping components can improve the sensing properties. However, the time-consuming experimental optimization of the sensor design has tremendously inhibited the development of the new sensing material. Nevertheless, density functional theory (DFT) calculations shined a light on the fundamental understanding of the sensing mechanism at the molecular level and accelerated the sensor design process. In this study, we used DFT calculations to investigate the sensing properties of the P-doped Co 3 O 4 (111) surface toward methanol, methane, formic acid, water, and formaldehyde. Results showed that P doping changed the surface electronic distribution, increased the charge transfer of HCHO, and enhanced the adsorption energy of other molecules. The significant difference in adsorption energy between H 2 O and HCHO indicates that the P-doped surface exhibits certain antihumidity properties in HCHO sensing. Our work broadens the application of P-doped Co 3 O 4 (111) in the VOC gas-sensing field and provides a theoretical basis for designing metal oxide semiconductor gas sensors.

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Ni-doped Co3O4 the influence of different exposed crystal facets and doping amount on the humidity sensitivity: Experiment and theory

Li,

Zhang,

Lei

et al. 2024

Applied Surface Science

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Constructing bilayer sensors with Co-MOF-derived Co3O4 porous sensing films and SnO2 catalytic overlayers to enhance room-temperature triethylamine sensing performance

Cited by 10 publications

References 40 publications

In-MIL-68 derived In₂O₃/Fe₂O₃ shuttle-like structures with n–n heterojunctions to improve ethanol sensing performance

In-MIL-68 derived In₂O₃/Fe₂O₃ shuttle-like structures with n–n heterojunctions to improve ethanol sensing performance

Density Functional Theory Study of P-Doped Co₃O₄(111) Facets for HCHO Adsorption: Implications for Metal Oxide Semiconductor Gas Sensors

Ni-doped Co3O4 the influence of different exposed crystal facets and doping amount on the humidity sensitivity: Experiment and theory

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Constructing bilayer sensors with Co-MOF-derived Co3O4 porous sensing films and SnO2 catalytic overlayers to enhance room-temperature triethylamine sensing performance

Cited by 10 publications

References 40 publications

In-MIL-68 derived In2O3/Fe2O3 shuttle-like structures with n–n heterojunctions to improve ethanol sensing performance

In-MIL-68 derived In2O3/Fe2O3 shuttle-like structures with n–n heterojunctions to improve ethanol sensing performance

Density Functional Theory Study of P-Doped Co3O4(111) Facets for HCHO Adsorption: Implications for Metal Oxide Semiconductor Gas Sensors

Ni-doped Co3O4 the influence of different exposed crystal facets and doping amount on the humidity sensitivity: Experiment and theory

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In-MIL-68 derived In₂O₃/Fe₂O₃ shuttle-like structures with n–n heterojunctions to improve ethanol sensing performance

In-MIL-68 derived In₂O₃/Fe₂O₃ shuttle-like structures with n–n heterojunctions to improve ethanol sensing performance

Density Functional Theory Study of P-Doped Co₃O₄(111) Facets for HCHO Adsorption: Implications for Metal Oxide Semiconductor Gas Sensors