Autor segons l'article: Walleni, Chiheb; Malik, Shuja Bashir; Missaoui, Ghada; Alouani, Mohamed Ayoub; Nsib, Mohamed Faouzi; Llobet, Eduard
Departament: Enginyeria Electrònica, Elèctrica i Automàtica
Autor/s de la URV: Alouani, Mohamed Ayoub / Llobet Valero, Eduard / Malik, Shuja Bashir
Paraules clau: Electronic-structure Graphite Humidit Raman-spectroscopy Reduction Sensitivity
Resum: In this paper, we develop high-performance gas sensors based on heteroatom-doped and -codoped graphene oxide as a sensing material for the detection of NO2 at trace levels. Graphene oxide (GO) was doped with nitrogen and boron by a chemical method using urea and boric acid as precursors. The prepared samples were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The obtained results proved the successful reduction of graphene oxide by doping effects, leading to the removal of some oxygen functional groups and restoration of an sp2 carbon structure. New bonds in honeycombs, such as pyridinic, pyrrolic, graphitic, B-C3, B-C2-O, and B-O, were created. Compared to the nondoped GO, the N/B-rGO materials exhibited enhanced responses toward low concentrations of NO2 (
Àrees temàtiques: Chemical engineering (all) Chemical engineering (miscellaneous) Chemistry (all) Chemistry (miscellaneous) Chemistry, multidisciplinary Ciências agrárias i Engenharias ii General chemical engineering General chemistry Interdisciplinar Química
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: eduard.llobet@urv.cat shujabashir.malik@urv.cat mohamedayoub.alouani@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/publishedVersion
Referència a l'article segons font original: Acs Omega. 9 (11): 13028-13040
Referència de l'ítem segons les normes APA: Walleni, Chiheb; Malik, Shuja Bashir; Missaoui, Ghada; Alouani, Mohamed Ayoub; Nsib, Mohamed Faouzi; Llobet, Eduard (2024). Selective NO2 Gas Sensors Employing Nitrogen- and Boron-Doped and Codoped Reduced Graphene Oxide. Acs Omega, 9(11), 13028-13040. DOI: 10.1021/acsomega.3c09460
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2024
Tipus de publicació: Journal Publications
Repositori URV