Electronic Nose based on Poly(vinylidene fluoride)-modified Nanofibers for Discriminative Detection of Volatile Organic Compounds

• Autor(a) principal: Braunger, Maria Luisa [UNESP]
• Data de Publicação: 2022
• Outros Autores: De Santana Gois, Bruno H. [UNESP], Fier, Igor, De Oliveira, Vinicius J. Rodrigues [UNESP], Da Silva Agostini, Deuber Lincon [UNESP], Riul, Antonio, De Almeida Olivati, Clarissa [UNESP]
• Tipo de documento: Artigo de conferência
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1109/ISOEN54820.2022.9789622; http://hdl.handle.net/11449/241260
• topic: ammonia; electronic nose; electrospinning; gas sensor; PVDF; sensor array; VOC

Two e-nose setups formed by similar sensing units based on nanofibers and drop-cast films of poly(vinylidene fluoride) (PVDF) were compared. In both setups, the sensing units were formed by pristine PVDF and PVDF modified with conducting polymers. The e-noses were tested in a custom-made chamber with volatile organic compounds (VOCs) and ammonia, using dry nitrogen as a flow gas. Overall, both e-nose devices discriminate against almost all vapors, especially ammonia. The results suggest that the e-nose based on nanofibers can distinguish ethanol from isopropanol, which is not possible with the e-nose based on drop-cast films of the same materials.