Autor segons l'article: Walleni, C; Ben Ali, M; Ncib, MF; Llobet, E
Departament: Enginyeria Electrònica, Elèctrica i Automàtica
Autor/s de la URV: Llobet Valero, Eduard
Paraules clau: Gas sensin; Gas sensing; N-rgo; Nio; No 2; No2
Resum: Detecting low nitrogen dioxide concentrations (NO2) is crucial for environmental monitoring. In this paper, we report the synergistic effect of decorating nitrogen-doped reduced graphene oxide (N-rGO) with nickel oxide (NiO) nanoparticles for developing highly selective and sensitive chemiresistive NO2 gas sensors. The N-rGO/NiO sensor was synthesized straightforwardly, ensuring uniform decoration of NiO nanoparticles on the N-rGO surface. Comprehensive characterization using SEM, TEM, XRD, and Raman spectroscopy confirmed the successful integration of NiO nanoparticles with N-rGO and revealed key structural and morphological features contributing to its enhanced sensing performance. As a result, the NiO/N-rGO nanohybrids demonstrate a significantly enhanced response five orders of magnitude higher than that of N-rGO toward low NO2 concentrations (
Àrees temàtiques: Analytical chemistry; Arquitetura, urbanismo e design; Astronomia / física; Atomic and molecular physics, and optics; Biochemistry; Biodiversidade; Biotecnología; Chemistry, analytical; Ciência da computação; Ciência de alimentos; Ciências agrárias i; Ciências ambientais; Ciências biológicas i; Ciências biológicas ii; Ciências biológicas iii; Educação física; Electrical and electronic engineering; Electrochemistry; Engenharias i; Engenharias ii; Engenharias iii; Engenharias iv; Engineering, electrical & electronic; Farmacia; Geociências; Geografía; Information systems; Instrumentation; Instruments & instrumentation; Interdisciplinar; Letras / linguística; Linguística e literatura; Matemática / probabilidade e estatística; Materiais; Medicina i; Medicina ii; Medicina iii; Medicina veterinaria; Medicine (miscellaneous); Química; Zootecnia / recursos pesqueiros
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
Data d'alta del registre: 2026-02-13
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://www.mdpi.com/1424-8220/25/5/1631
Referència a l'article segons font original: Sensors. 25 (5): 1631-
Referència de l'ítem segons les normes APA: Walleni, C; Ben Ali, M; Ncib, MF; Llobet, E (2025). Synergistic Enhancement of Chemiresistive NO2 Gas Sensors Using Nitrogen-Doped Reduced Graphene Oxide (N-rGO) Decorated with Nickel Oxide (NiO) Nanoparticles: Achieving sub-ppb Detection Limit. Sensors, 25(5), 1631-. DOI: 10.3390/s25051631
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
DOI de l'article: 10.3390/s25051631
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2025-03-01
Tipus de publicació: Journal Publications
Repositori URV