Enhanced CO2 Sensing by Oxygen Plasma-Treated Perovskite-Graphene Nanocomposites.
ACS Sens
; 9(2): 830-839, 2024 02 23.
Article
en En
| MEDLINE
| ID: mdl-38320174
ABSTRACT
Carbon dioxide (CO2) is a major greenhouse gas responsible for global warming and climate change. The development of sensitive CO2 sensors is crucial for environmental and industrial applications. This paper presents a novel CO2 sensor based on perovskite nanocrystals immobilized on graphene and functionalized with oxygen plasma treatment. The impact of this post-treatment method was thoroughly investigated using various characterization techniques, including Raman spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The detection of CO2 at parts per million (ppm) levels demonstrated that the hybrids subjected to 5 min of oxygen plasma treatment exhibited a 3-fold improvement in sensing performance compared to untreated layers. Consequently, the CO2 sensing capability of the oxygen-treated samples showed a limit of detection and limit of quantification of 6.9 and 22.9 ppm, respectively. Furthermore, the influence of ambient moisture on the CO2 sensing performance was also evaluated, revealing a significant effect of oxygen plasma treatment.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Óxidos
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Titanio
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Compuestos de Calcio
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Nanocompuestos
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Grafito
Idioma:
En
Revista:
ACS Sens
Año:
2024
Tipo del documento:
Article
País de afiliación:
Bélgica