Speaker
Description
Monitoring hydrogen sulfide (H2S) is vital for industrial safety and environmental systems, enabling the assessment of sulfur deposition, long-term impacts, and ecosystem stress. In this study, sensors made from CuO, CeO2, and their CuO/CeO2 heterostructure were hydrothermally synthesized and tested for gas detection performance against H2S. Multiple characterization techniques, such as X-ray powder diffraction, X-ray electron spectroscopy, UV-vis spectroscopy, photoluminescence spectroscopy, scanning electron microscopy, transmission electron microscopy, and a gas testing station, were used to evaluate their structural, chemical, optical, and surface morphological properties. Different operating temperatures were examined to determine the optimal gas-sensing performance. The CuO/CeO2 sensor achieved peak performance at 150 ℃, with a response of 109 at 120 ppm H2S. The sensing ability is attributed to the synergistic interaction between CeO2 and CuO, which increases the number of active sites for H2S absorption. This sensor exhibited excellent long-term stability and humidity tolerance, indicating its potential for environmental monitoring.
| Apply for student award at which level: | MSc |
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| Consent on use of personal information: Abstract Submission | Yes, I ACCEPT |