Autor según el artículo: Pauly A; Ali SS; Varenne C; Brunet J; Llobet E; Ndiaye AL
Departamento: Enginyeria Electrònica, Elèctrica i Automàtica
Autor/es de la URV: Llobet Valero, Eduard
Palabras clave: Temperature Resistive sensors Porphyrins Polyaniline thin-films Polyaniline Phthalocyanine Humidity Ammonia temperature resistive sensors porphyrins phthalocyanine nh3 nanocomposite humidity gas sensitivity facile fabrication doped polyaniline conducting polymers carbon nanotubes ammonia
Resumen: We combined a conducting polymer, polyaniline (PANI), with an organic semiconducting macrocyclic (MCs) material. The macrocycles are the phthalocyanines and porphyrins used to tune the electrical properties of the PANI, which benefits from their ability to enhance sensor response. For this, we proceeded by a simple ultrasonically assisted reaction involving the two components, i.e., the PANI matrix and the MCs, to achieve the synthesis of the composite nanostructure PANI/MCs. The composite nanostructure has been characterized and deposited on interdigitated electrodes (IDEs) to construct resistive sensor devices. The isolated nanostructured composites present good electrical properties dominated by PANI electronic conductivity, and the characterization reveals that both components are present in the nanostructure. The experimental results obtained under gas exposures show that the composite nanostructures can be used as a sensing material with enhanced sensing properties. The sensing performance under different conditions, such as ambient humidity, and the sensor’s operating temperature are also investigated. Sensing behavior in deficient humidity levels and their response at different temperatures revealed unusual behaviors that help to understand the sensing mechanism. Gas sensors based on PANI/MCs demonstrate significant stability over time, but this stability is highly reduced after experiments in lower humidity conditions and at high temperatures.
Áreas temáticas: Polymers and plastics Polymer science Odontología General chemistry Farmacia Engenharias ii Ciências biológicas ii Chemistry (miscellaneous) Chemistry (all) Biotecnología Astronomia / física
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
Direcció de correo del autor: eduard.llobet@urv.cat
Identificador del autor: 0000-0001-6164-4342
Fecha de alta del registro: 2023-02-19
Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
Enlace a la fuente original: https://www.mdpi.com/2073-4360/14/5/891
URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/
Referencia al articulo segun fuente origial: Polymers. 14 (5):
Referencia de l'ítem segons les normes APA: Pauly A; Ali SS; Varenne C; Brunet J; Llobet E; Ndiaye AL (2022). Phthalocyanines and Porphyrins/Polyaniline Composites (PANI/CuPctBu and PANI/TPPH2) as Sensing Materials for Ammonia Detection. Polymers, 14(5), -. DOI: 10.3390/polym14050891
DOI del artículo: 10.3390/polym14050891
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2022
Tipo de publicación: Journal Publications
Repositori URV