Author, as appears in the article.: Walleni, Chiheb; Malik, Shuja Bashir; Missaoui, Ghada; Alouani, Mohamed Ayoub; Nsib, Mohamed Faouzi; Llobet, Eduard
Department: Enginyeria Electrònica, Elèctrica i Automàtica
URV's Author/s: Alouani, Mohamed Ayoub / Llobet Valero, Eduard / Malik, Shuja Bashir
Keywords: Electronic-structure Graphite Humidit Raman-spectroscopy Reduction Sensitivity
Abstract: 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 (
Thematic Areas: Chemical engineering (all) Chemical engineering (miscellaneous) Chemistry (all) Chemistry (miscellaneous) Chemistry, multidisciplinary Ciências agrárias i Engenharias ii General chemical engineering General chemistry Interdisciplinar Química
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: eduard.llobet@urv.cat shujabashir.malik@urv.cat mohamedayoub.alouani@urv.cat
Author identifier: 0000-0001-6164-4342
Record's date: 2024-10-12
Papper version: info:eu-repo/semantics/publishedVersion
Papper original source: Acs Omega. 9 (11): 13028-13040
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
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Entity: Universitat Rovira i Virgili
Journal publication year: 2024
Publication Type: Journal Publications
Repositori URV