Synthesis and characterization of V2O5/PANI thin films for application in amperometric ammonia gas sensors.

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dc.contributor.authorSantos, Mirela de Castro
dc.contributor.authorHamdan, O. H. C.
dc.contributor.authorValverde, Sarah Araújo
dc.contributor.authorGuerra, Elídia Maria
dc.contributor.authorBianchi, Rodrigo Fernando
dc.date.accessioned2019-06-10T13:24:03Z
dc.date.available2019-06-10T13:24:03Z
dc.date.issued2018
dc.description.abstractStudies of xerogel vanadium pentoxide hybrids in the presence of polyaniline (V2O5/PANI) for ammonia gas detection are presented. The hybrid materials were obtained in an oxidative polymerization/intercalation process, in which gel reacted with the monomers of the polymers. In situ characterization revealed V2O5/PANI hybrids with lamellar structure. Finally, the electric impedance technique was used for determining the optimal frequency band for operation of an Ag/V2O5/PANI/Ag amperometric ammonia gas sensor, to achieve linearity and stability. The results indicate that the sensor can detect gaseous ammonia in the 0–54 ppm range of concentrations. This characteristic is important for successful applications in easy to handle and low-cost ammonia gas sensors for animal confinement husbandry, for which current variation and difficulties related to electrode effects and dielectric absorption of V2O5 and PANI are negligible.pt_BR
dc.identifier.citationSANTOS, M. de C. et al. Synthesis and characterization of V2O5/PANI thin films for application in amperometric ammonia gas sensors. Organic Electronics, v. 65, p. 116-120, fev. 2019. Disponível em: <https://www.sciencedirect.com/science/article/pii/S1566119918305834>. Acesso em: 19 mar. 2019.pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.orgel.2018.11.013pt_BR
dc.identifier.issn1566-1199
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/11507
dc.identifier.uri2https://www.sciencedirect.com/science/article/pii/S1566119918305834pt_BR
dc.language.isoen_USpt_BR
dc.rightsrestritopt_BR
dc.subjectOxidespt_BR
dc.subjectPolymerspt_BR
dc.subjectElectrical propertiespt_BR
dc.titleSynthesis and characterization of V2O5/PANI thin films for application in amperometric ammonia gas sensors.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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