Low-temperature ppm-level H2S flexible gas sensor on the basis of Ag-modified ZnO

Guo, Mengyao; Wang, Binchao; Bian, Hongxia; Tao, Zhigang; Luo, Xiaofeng; Cui, Yanjun; Huang, Jiankang; Tu, Peng

doi:10.1016/j.mssp.2024.108944

Materials Science in Semiconductor Processing

2025

DOI: 10.1016/j.mssp.2024.108944

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Low-temperature ppm-level H2S flexible gas sensor on the basis of Ag-modified ZnO

Mengyao Guo,

Binchao Wang,

Hongxia Bian

et al.

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2025

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Cited by 2 publications

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Selectivity toward H2S against various gaseous disease markers in exhaled breath of flame-produced CuOx-loaded SnO2 nanosensors

Liewhiran,

Punginsang,

Inyawilert

et al. 2025

Sensors and Actuators B: Chemical

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Selectivity toward H2S against various gaseous disease markers in exhaled breath of flame-produced CuOx-loaded SnO2 nanosensors

Liewhiran,

Punginsang,

Inyawilert

et al. 2025

Sensors and Actuators B: Chemical

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Bioinspired Fern-like Fe2O3 Functionalized with Pd/PdO Nanoparticles for High-Performance Acetone Sensing

Liu,

Wang

2024

Molecules

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The accurate monitoring and detection of acetone vapor are essential for environmental and human safety. Consequently, fern-like Fe2O3 with hierarchical vein-like structures is synthesized via a concise hydrothermal method. Compared with pure fern-like Fe2O3, fern-like Pd/PdO-Fe2O3 shows the best acetone-sensing characteristics, in terms of lower operating temperature (180 °C), better selectivity and excellent long-term stability. More importantly, the response value of the Pd/PdO-Fe2O3 sensor to 100 ppm acetone reaches as high as 73, which is 55% higher than that of pristine fern-like Fe2O3. This enhanced sensing performance can be ascribed to the synergistic effect between Pd/PdO and fern-like Fe2O3. On the one hand, Pd/PdO nanoparticles show favorable catalytic activity toward ionized oxygen molecules; meanwhile, the formation of the heterojunction between PdO and fern-like Fe2O3 plays an important role. On the other hand, the hierarchical nature of fern-like Fe2O3 promotes efficient gas diffusion throughout the structure. Based on its advantages, fern-like Pd/PdO-Fe2O3 becomes a satisfactory candidate for acetone gas sensors.

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Low-temperature ppm-level H2S flexible gas sensor on the basis of Ag-modified ZnO

Cited by 2 publications

References 54 publications

Selectivity toward H2S against various gaseous disease markers in exhaled breath of flame-produced CuOx-loaded SnO2 nanosensors

Selectivity toward H2S against various gaseous disease markers in exhaled breath of flame-produced CuOx-loaded SnO2 nanosensors

Bioinspired Fern-like Fe2O3 Functionalized with Pd/PdO Nanoparticles for High-Performance Acetone Sensing

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