Poly(aniline)-based ammonia sensors: Understanding the role of polyurethane on structural/morphological properties and sensing performances

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorCentre for Energy and Environment-
Autor(es): dc.contributorCentre for Materials and Processes-
Autor(es): dc.contributorUniversidade Federal de Santa Catarina (UFSC)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorda Silva, Edilene A.-
Autor(es): dc.creatorSamuel, Cédric-
Autor(es): dc.creatorFurini, Leonardo N.-
Autor(es): dc.creatorConstantino, Carlos José L.-
Autor(es): dc.creatorRedon, Nathalie-
Autor(es): dc.creatorDuc, Caroline-
Data de aceite: dc.date.accessioned2025-08-21T20:48:33Z-
Data de disponibilização: dc.date.available2025-08-21T20:48:33Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2023-12-14-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.snb.2023.134664-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/298489-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/298489-
Descrição: dc.descriptionHighly sensitive ammonia (NH3) sensors based on acidic-doped polyaniline (PAni) and polyurethane (PU) are proposed using the facile drop-cast technique. The mass ratios between the polymers were varied in order to elucidate the influence of PU on the film structure and sensing performances of PAni. The supramolecular arrangement changes according to the polymer proportions without impacting the doping of PAni, phenomenon observed in the morphological and optical measurements. The results of the devices showed that the presence of PU can significantly enhance the sensitivity of the sensors without interfering with the main sensing features of PAni, and the proportion variation affects directly the characteristics and performances of the device. We also verified that the PU/PAni sensors present good repeatability and ability to promptly respond to random ammonia concentration variation. Moreover, PU mitigated the influence of humidity on the sensors, which tends to lower their response toward ammonia, and also decreased the drift of the devices which increases their lifespan within a device operating range. The PU/PAni films offer a potential option for applications requiring low-concentration detection of NH3, such as indoor air quality and medical diagnosis.-
Descrição: dc.descriptionScuola IMT Alti Studi Lucca-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionAgence Nationale de la Recherche-
Descrição: dc.descriptionIMT Nord Europe Institut Mines-Télecom Univ. Lille Centre for Energy and Environment-
Descrição: dc.descriptionIMT Nord Europe Institut Mines-Télecom Univ. Lille Centre for Materials and Processes-
Descrição: dc.descriptionDepartamento de Física Universidade Federal de Santa Catarina-
Descrição: dc.descriptionSão Paulo State University (Unesp) School of Technology and Sciences-
Descrição: dc.descriptionSão Paulo State University (Unesp) School of Technology and Sciences-
Descrição: dc.descriptionCNPq: 311601/2020-0-
Descrição: dc.descriptionCNPq: 405087/2021-7-
Descrição: dc.descriptionAgence Nationale de la Recherche: ANR-21-LCV1-0007-01-
Idioma: dc.languageen-
Relação: dc.relationSensors and Actuators B: Chemical-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAmmonia sensor-
Palavras-chave: dc.subjectChemiresistor-
Palavras-chave: dc.subjectGas sensor-
Palavras-chave: dc.subjectPolyaniline-
Palavras-chave: dc.subjectPolyurethane-
Título: dc.titlePoly(aniline)-based ammonia sensors: Understanding the role of polyurethane on structural/morphological properties and sensing performances-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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