Investigation of electronic and chemical sensitization effects promoted by Pt and Pd nanoparticles on single-crystalline SnO nanobelt-based gas sensors

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorMIT-
Autor(es): dc.creatorBarbosa, Martin S. [UNESP]-
Autor(es): dc.creatorSuman, Pedro H. [UNESP]-
Autor(es): dc.creatorKim, Jae J.-
Autor(es): dc.creatorTuller, Harry L.-
Autor(es): dc.creatorOrlandi, Marcelo O. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:08:52Z-
Data de disponibilização: dc.date.available2022-02-22T00:08:52Z-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2020-12-09-
Data de envio: dc.date.issued2019-12-11-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.snb.2019.127055-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/196234-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/196234-
Descrição: dc.descriptionThis work reports on the gas sensor response of undecorated 1D stannous oxide nanobelts and those decorated with Pt and Pd nanoparticles. The sensor device responses to H-2, CO and NO2 were measured in dry air baseline atmosphere as functions of the analyte concentration (1-1000 ppm) and temperature (100-350 degrees C). Noble metal decorated SnO devices exhibited enhanced chemical sensitization, resulting in increased sensitivity upon exposure to reducing gases at different working temperatures. Differences in enhancement levels are attributed to strong electronic sensitization effects that are dependent on the respective Pt and Pd work functions and the unique SnO band structure, characterized by a small band gap. Gas sensing results also showed superior selectivity to H-2 for metal-decorated nanobelts. Based on the findings in this work, we propose an array based on SnO structures capable of detecting and distinguishing reducing and oxidizing gases.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionMRSEC Program of the National Science Foundation-
Descrição: dc.descriptionSao Paulo State Univ, Dept Phys Chem, BR-14800900 Araraquara, SP, Brazil-
Descrição: dc.descriptionMIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA-
Descrição: dc.descriptionSao Paulo State Univ, Dept Phys Chem, BR-14800900 Araraquara, SP, Brazil-
Descrição: dc.descriptionFAPESP: 2012/51195-3-
Descrição: dc.descriptionFAPESP: 2013/08734-3-
Descrição: dc.descriptionFAPESP: 2013/18511-1-
Descrição: dc.descriptionFAPESP: 2014/50725-4-
Descrição: dc.descriptionCNPq: 447760/2014-9-
Descrição: dc.descriptionCNPq: 443138/2016-8-
Descrição: dc.descriptionMRSEC Program of the National Science Foundation: DMR - 141,980-
Formato: dc.format6-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier B.V.-
Relação: dc.relationSensors And Actuators B-chemical-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectGas sensors-
Palavras-chave: dc.subjectSnO-
Palavras-chave: dc.subjectNanobelts-
Palavras-chave: dc.subjectCatalysis-
Palavras-chave: dc.subjectSurface sensitization-
Palavras-chave: dc.subjectPt-
Palavras-chave: dc.subjectPd-
Título: dc.titleInvestigation of electronic and chemical sensitization effects promoted by Pt and Pd nanoparticles on single-crystalline SnO nanobelt-based gas sensors-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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