Autor según el artículo: Behi S; Bohli N; Casanova-Cháfer J; Llobet E; Abdelghani A

Departamento: Enginyeria Electrònica, Elèctrica i Automàtica

Autor/es de la URV: Casanova Chafer, Juan / Llobet Valero, Eduard

Palabras clave: Work function Wo3/graphene nanocomposite Tungsten oxide Tin oxide Sno2 nanoparticles Sensor array Sensor Sensitivity Room-temperature Metal oxide nanoparticles Graphene Gas-sensing properties Film Carbon nanotubes Btx Assisted hydrothermal method Aromatic voc tin oxide sensor array metal oxide nanoparticles graphene btx aromatic voc

Resumen: © 2020 by the authors. Licensee MDPI, Basel, Switzerland. Benzene, toluene, and xylene, commonly known as BTX, are hazardous aromatic organic vapors with high toxicity towards living organisms. Many techniques are being developed to provide the community with portable, cost effective, and high performance BTX sensing devices in order to effectively monitor the quality of air. In this paper, we study the effect of decorating graphene with tin oxide (SnO2) or tungsten oxide (WO3) nanoparticles on its performance as a chemoresistive material for detecting BTX vapors. Transmission electron microscopy and environmental scanning electron microscopy are used as morphological characterization techniques. SnO2-decorated graphene displayed high sensitivity towards benzene, toluene, and xylene with the lowest tested concentrations of 2 ppm, 1.5 ppm, and 0.2 ppm, respectively. In addition, we found that, by employing these nanomaterials, the observed response could provide a unique double signal confirmation to identify the presence of benzene vapors for monitoring occupational exposure in the textiles, painting, and adhesives industries or in fuel stations.

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/

ISSN: 1424-8220

Direcció de correo del autor: juan.casanova@urv.cat eduard.llobet@urv.cat

Identificador del autor: 0000-0001-6164-4342

Fecha de alta del registro: 2023-05-14

Volumen de revista: 20

Versión del articulo depositado: info:eu-repo/semantics/publishedVersion

Enlace a la fuente original: https://www.mdpi.com/1424-8220/20/12/3413

URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/

Referencia al articulo segun fuente origial: Sensors. 20 (12): 1-15

Referencia de l'ítem segons les normes APA: Behi S; Bohli N; Casanova-Cháfer J; Llobet E; Abdelghani A (2020). Metal oxide nanoparticle-decorated few layer graphene nanoflake chemoresistors for the detection of aromatic volatile organic compounds. Sensors, 20(12), 1-15. DOI: 10.3390/s20123413

DOI del artículo: 10.3390/s20123413

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2020

Tipo de publicación: Journal Publications