Articles producció científica> Enginyeria Electrònica, Elèctrica i Automàtica

ZnO-Loaded Graphene for NO2 Gas Sensing

  • Datos identificativos

    Identificador: imarina:9325782
    Autores:
    Alouani, Mohamed AyoubCasanova-Chafer, JuanGuell, FrankPena-Martin, ElisaRuiz-Martinez-Alcocer, Sarade Bernardi-Martin, SantiagoGarcia-Gomez, AlejandraVilanova, XavierLlobet, Eduard
    Resumen:
    This paper investigates the effect of decorating graphene with zinc oxide (ZnO) nanoparticles (NPs) for the detection of NO2. In this regard, two graphene sensors with different ZnO loadings of 5 wt.% and 20 wt.% were prepared, and their responses towards NO2 at room temperature and different conditions were compared. The experimental results demonstrate that the graphene loaded with 5 wt.% ZnO NPs (G95/5) shows better performance at detecting low concentrations of the target gas than the one loaded with 20 wt.% ZnO NPs (G80/20). Moreover, measurements under dry and humid conditions of the G95/5 sensor revealed that the material is very sensitive to ambient moisture, showing an almost eight-fold increase in NO2 sensitivity when the background changes from dry to 70% relative humidity. Regarding sensor selectivity, it presents a significant selectivity towards NO2 compared to other gas compounds.
  • Otros:

    Autor según el artículo: Alouani, Mohamed Ayoub; Casanova-Chafer, Juan; Guell, Frank; Pena-Martin, Elisa; Ruiz-Martinez-Alcocer, Sara; de Bernardi-Martin, Santiago; Garcia-Gomez, Alejandra; Vilanova, Xavier; Llobet, Eduard
    Departamento: Enginyeria Electrònica, Elèctrica i Automàtica
    Autor/es de la URV: Alouani, Mohamed Ayoub / Casanova Chafer, Juan / GüELL VILÀ, FRANK / Llobet Valero, Eduard / Vilanova Salas, Javier
    Palabras clave: Zinc oxide Sensitive detection No2 detection Nitrogen dioxide Nanoparticles Graphite Graphene Gas sensor zinc oxide sensor no2 detection gas sensor
    Resumen: This paper investigates the effect of decorating graphene with zinc oxide (ZnO) nanoparticles (NPs) for the detection of NO2. In this regard, two graphene sensors with different ZnO loadings of 5 wt.% and 20 wt.% were prepared, and their responses towards NO2 at room temperature and different conditions were compared. The experimental results demonstrate that the graphene loaded with 5 wt.% ZnO NPs (G95/5) shows better performance at detecting low concentrations of the target gas than the one loaded with 20 wt.% ZnO NPs (G80/20). Moreover, measurements under dry and humid conditions of the G95/5 sensor revealed that the material is very sensitive to ambient moisture, showing an almost eight-fold increase in NO2 sensitivity when the background changes from dry to 70% relative humidity. Regarding sensor selectivity, it presents a significant selectivity towards NO2 compared to other gas compounds.
    Áreas temáticas: Zootecnia / recursos pesqueiros Química Medicine (miscellaneous) Medicina veterinaria Medicina iii Medicina ii Medicina i Materiais Matemática / probabilidade e estatística Linguística e literatura Letras / linguística Interdisciplinar Instruments & instrumentation Instrumentation Information systems Geografía Geociências Farmacia Engineering, electrical & electronic Engenharias iv Engenharias iii Engenharias ii Engenharias i Electrochemistry Electrical and electronic engineering Educação física Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Chemistry, analytical Biotecnología Biodiversidade Biochemistry Atomic and molecular physics, and optics Astronomia / física Arquitetura, urbanismo e design Analytical chemistry
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    Direcció de correo del autor: mohamedayoub.alouani@urv.cat juan.casanova@urv.cat eduard.llobet@urv.cat xavier.vilanova@urv.cat
    Identificador del autor: 0000-0001-6164-4342 0000-0002-6245-7933
    Fecha de alta del registro: 2024-10-12
    Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
    Enlace a la fuente original: https://www.mdpi.com/1424-8220/23/13/6055
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referencia al articulo segun fuente origial: Sensors. 23 (13): 6055-
    Referencia de l'ítem segons les normes APA: Alouani, Mohamed Ayoub; Casanova-Chafer, Juan; Guell, Frank; Pena-Martin, Elisa; Ruiz-Martinez-Alcocer, Sara; de Bernardi-Martin, Santiago; Garcia-Gom (2023). ZnO-Loaded Graphene for NO2 Gas Sensing. Sensors, 23(13), 6055-. DOI: 10.3390/s23136055
    DOI del artículo: 10.3390/s23136055
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2023
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Analytical Chemistry,Atomic and Molecular Physics, and Optics,Biochemistry,Chemistry, Analytical,Electrical and Electronic Engineering,Electrochemistry,Engineering, Electrical & Electronic,Information Systems,Instrumentation,Instruments & Instrumentation,Medicine (Miscellaneous)
    Zinc oxide
    Sensitive detection
    No2 detection
    Nitrogen dioxide
    Nanoparticles
    Graphite
    Graphene
    Gas sensor
    zinc oxide
    sensor
    no2 detection
    gas sensor
    Zootecnia / recursos pesqueiros
    Química
    Medicine (miscellaneous)
    Medicina veterinaria
    Medicina iii
    Medicina ii
    Medicina i
    Materiais
    Matemática / probabilidade e estatística
    Linguística e literatura
    Letras / linguística
    Interdisciplinar
    Instruments & instrumentation
    Instrumentation
    Information systems
    Geografía
    Geociências
    Farmacia
    Engineering, electrical & electronic
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Engenharias i
    Electrochemistry
    Electrical and electronic engineering
    Educação física
    Ciências biológicas iii
    Ciências biológicas ii
    Ciências biológicas i
    Ciências ambientais
    Ciências agrárias i
    Ciência de alimentos
    Ciência da computação
    Chemistry, analytical
    Biotecnología
    Biodiversidade
    Biochemistry
    Atomic and molecular physics, and optics
    Astronomia / física
    Arquitetura, urbanismo e design
    Analytical chemistry
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