Chemoresistive xylene sensor based on hollow praseodymium oxide nanospheres

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.creatorZito, Cecilia A.-
Autor(es): dc.creatorde Sá, Bruna S.-
Autor(es): dc.creatorPerfecto, Tarcísio M.-
Autor(es): dc.creatorVolanti, Diogo P.-
Data de aceite: dc.date.accessioned2025-08-21T15:49:44Z-
Data de disponibilização: dc.date.available2025-08-21T15:49:44Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-10-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.materresbull.2024.112981-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/303811-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/303811-
Descrição: dc.descriptionPraseodymium oxide has already been explored in several applications within materials science. Yet, its use as a chemoresistive gas sensor has rarely been reported. Herein, we present the aromatic hydrocarbon sensing performance of monoclinic Pr12O22 nanospheres produced via a microwave-assisted solvothermal approach with a subsequent calcination step. Sensing tests were performed at temperatures ranging from 200 to 500 °C and under different relative humidity conditions, from 0 % to 93 %. At 400 °C and dry conditions, the sensor exhibits a response of ca. 50 % towards 200 ppm m-xylene, which is much higher than those to benzene and toluene. The sensor also reveals excellent sensitivity for concentrations as low as 5 ppm of m-xylene, even at high relative humidity, while maintaining stability and repeatability over several days. Furthermore, the Pr12O22-based sensor presents an unusual p-type behavior attributed to the mixed valence states of the rare earth metal.-
Descrição: dc.descriptionLaboratory of Materials for Sustainability (LabMatSus) Ibilce São Paulo State University (Unesp), São Paulo-
Descrição: dc.descriptionBrazilian Agricultural Research Corporation (EMBRAPA) São Carlos, São Paulo-
Descrição: dc.descriptionLaboratory of Materials for Sustainability (LabMatSus) Ibilce São Paulo State University (Unesp), São Paulo-
Idioma: dc.languageen-
Relação: dc.relationMaterials Research Bulletin-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectMetal oxide-
Palavras-chave: dc.subjectPair distribution function-
Palavras-chave: dc.subjectPr6O11-
Palavras-chave: dc.subjectRare-earth-
Palavras-chave: dc.subjectVolatile organic compounds-
Título: dc.titleChemoresistive xylene sensor based on hollow praseodymium oxide nanospheres-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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