Autor según el artículo: Casanova-Cháfer J, Navarrete E, Noirfalise X, Umek P, Bittencourt C, Llobet E

Departamento: Enginyeria Electrònica, Elèctrica i Automàtica

e-ISSN: 1424-8220

Autor/es de la URV: Llobet Valero, Eduard / Navarrete Gatell, Èric

Palabras clave: Sensitivity Room-temperature Relative humidity effect Networks Mwcnts Metal nanoparticles Mechanisms Iridium oxide Ir Humidity sensor Gold Functionalization Films Chemoresistive gas sensor Carbon nanotubes metal nanoparticles iridium oxide chemoresistive gas sensor carbon nanotubes

Resumen: The properties of multi-wall carbon nanotubes decorated with iridium oxide nanoparticles (IrOx-MWCNTs) are studied to detect harmful gases such as nitrogen dioxide and ammonia. IrOx nanoparticles were synthetized using a two-step method, based on a hydrolysis and acid condensation growth mechanism. The metal oxide nanoparticles obtained were employed for decorating the sidewalls of carbon nanotubes. Iridium-oxide nanoparticle decorated carbon nanotube material showed higher and more stable responses towards NH3 and NO2 than bare carbon nanotubes under different experimental conditions, establishing the optimal operating temperatures and estimating the limits of detection and quantification. Furthermore, the nanomaterials employed were studied using different morphological and compositional characterization techniques and a gas sensing mechanism is proposed.

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: 14248220

Direcció de correo del autor: eric.navarrete@urv.cat eduard.llobet@urv.cat eric.navarrete@urv.cat

Identificador del autor: 0000-0001-6164-4342

Fecha de alta del registro: 2023-02-18

Volumen de revista: 19

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

Enlace a la fuente original: https://www.mdpi.com/1424-8220/19/1/113

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

Referencia al articulo segun fuente origial: Sensors. 19 (1):

Referencia de l'ítem segons les normes APA: Casanova-Cháfer J, Navarrete E, Noirfalise X, Umek P, Bittencourt C, Llobet E (2019). Gas Sensing with Iridium Oxide Nanoparticle Decorated Carbon Nanotubes. Sensors, 19(1), -. DOI: 10.3390/s19010113

DOI del artículo: 10.3390/s19010113

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2019

Tipo de publicación: Journal Publications