Repositori institucional URV
| Autor/es de la URV: | Llobet Valero, Eduard |
| Autor según el artículo: | Walleni C; Ali MB; Ncib MF; Llobet E |
| Direcció de correo del autor: | eduard.llobet@urv.cat |
| Identificador del autor: | 0000-0001-6164-4342 |
| Año de publicación de la revista: | 2025 |
| Tipo de publicación: | Journal Publications |
| Referencia de l'ítem segons les normes APA: | Walleni C; Ali MB; 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 |
| Referencia al articulo segun fuente origial: | Sensors. 25 (5): 1631- |
| Resumen: | 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 (<1 ppm) at 100 °C. Moreover, the present device has an outstanding performance, high sensitivity, and low limit of detection (<1 ppb). The findings pave the way for integrating these sensors into advanced applications, including environmental monitoring and IoT-enabled air quality management systems. |
| DOI del artículo: | 10.3390/s25051631 |
| Enlace a la fuente original: | https://www.mdpi.com/1424-8220/25/5/1631 |
| Versión del articulo depositado: | info:eu-repo/semantics/publishedVersion |
| Acceso a la licencia de uso: | https://creativecommons.org/licenses/by/3.0/es/ |
| Departamento: | Enginyeria Electrònica, Elèctrica i Automàtica |
| URL Documento de licencia: | https://repositori.urv.cat/ca/proteccio-de-dades/ |
| Áreas temáticas: | 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 |
| Palabras clave: | Gas sensing N-rgo Nio No2 |
| Entidad: | Universitat Rovira i Virgili |
| Fecha de alta del registro: | 2025-03-31 |
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| DocumentPrincipal | DocumentPrincipal | application/pdf |
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