Autor segons l'article: Casanova-Chafer, Juan; Garcia-Aboal, Rocio; Llobet, Eduard; Atienzar, Pedro
Departament: Enginyeria Electrònica, Elèctrica i Automàtica
Autor/s de la URV: Casanova Chafer, Juan / Llobet Valero, Eduard
Paraules clau: Titanium Perovskite Oxygen plasma Oxygen Oxides Nanocomposites Graphite Graphene Gas sensors Co2 Co 2 Chemical gas sensor Carbon dioxide Calcium compounds water temperature raman-spectroscopy oxygen plasma graphene defects co2 chemical gas sensor
Resum: 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.
Àrees temàtiques: Process chemistry and technology Nanoscience & nanotechnology Instrumentation Fluid flow and transfer processes Engenharias iii Chemistry, multidisciplinary Chemistry, analytical Bioengineering
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: juan.casanova@urv.cat eduard.llobet@urv.cat
Identificador de l'autor: 0000-0001-6164-4342
Data d'alta del registre: 2024-10-12
Versió de l'article dipositat: info:eu-repo/semantics/submittedVersion
Enllaç font original: https://pubs.acs.org/doi/abs/10.1021/acssensors.3c02166
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Acs Sensors. 9 (2): 830-839
Referència de l'ítem segons les normes APA: Casanova-Chafer, Juan; Garcia-Aboal, Rocio; Llobet, Eduard; Atienzar, Pedro (2024). Enhanced CO2 Sensing by Oxygen Plasma-Treated Perovskite-Graphene Nanocomposites. Acs Sensors, 9(2), 830-839. DOI: 10.1021/acssensors.3c02166
DOI de l'article: 10.1021/acssensors.3c02166
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2024
Tipus de publicació: Journal Publications
Repositori URV