ZnO twin-rods decorated with Pt nanoparticles for butanone detection

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorFederal University of Rio Grande do Sul (UFRGS)-
Autor(es): dc.contributorCNPEM-
Autor(es): dc.creatorOliveira, Taís N.T. [UNESP]-
Autor(es): dc.creatorZito, Cecilia A. [UNESP]-
Autor(es): dc.creatorPerfecto, Tarcísio M. [UNESP]-
Autor(es): dc.creatorAzevedo, Gustavo M.-
Autor(es): dc.creatorVolanti, Diogo P. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:44:08Z-
Data de disponibilização: dc.date.available2022-02-22T00:44:08Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-09-28-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1039/d0nj03206a-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/205366-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/205366-
Descrição: dc.descriptionSensors of volatile organic compounds (VOCs) are of great importance for environmental monitoring. Nevertheless, it is a great challenge to develop highly sensitive and selective sensors. In this sense, we report the synthesis of ZnO twin-rods via a combination of the ultrasonic spray nozzle and microwave-assisted hydrothermal methods, which were then loaded with platinum (Pt) nanoparticles (NPs) to obtain Pt/ZnO heterostructures. The VOC detection tests revealed that the 2% Pt/ZnO heterostructure was the best composition, which showed an improved response of 35.2 to 100 ppm of butanone at 450 °C, with high sensitivity to detect low concentrations of butanone (5 ppm) as well as high selectivity and stability. X-ray absorption spectroscopy studies revealed the presence of oxidized Pt species (PtOx) under optimal operating conditions. Thus, the enhanced sensitivity of 2% Pt/ZnO can be attributed to the p-n junction at the PtOx/ZnO interface.-
Descrição: dc.descriptionLaboratory of Materials for Sustainability (LabMatSus) Ibilce São Paulo State University (Unesp), R. Cristóvão Colombo 2265-
Descrição: dc.descriptionInstitute of Physics Federal University of Rio Grande do Sul (UFRGS), Av. Bento Gonçalves 9500-
Descrição: dc.descriptionBrazilian Synchrotron Light Laboratory (LNLS) CNPEM, R. Giuseppe Máximo Scolfaro 10.000-
Descrição: dc.descriptionLaboratory of Materials for Sustainability (LabMatSus) Ibilce São Paulo State University (Unesp), R. Cristóvão Colombo 2265-
Formato: dc.format15574-15583-
Idioma: dc.languageen-
Relação: dc.relationNew Journal of Chemistry-
???dc.source???: dc.sourceScopus-
Título: dc.titleZnO twin-rods decorated with Pt nanoparticles for butanone detection-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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