Heating Method Effect on SnO Micro-Disks as NO2 Gas Sensor
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.3389/fmats.2019.00171 http://hdl.handle.net/11449/185912 |
Resumo: | There is an increasing concern about NOx emission, and many studies have been carried out using metal oxide semiconductors (MOS) aiming its detection. Among the MOS, the SnO micro-disks present a high sensor response and a great selectivity toward NO2. Nevertheless, sensor signal, limit of detection (LOD), and recovery time are related to the experimental setup used to carry on the measurements. Thus, two different heating methods (self-heating and external heating) have been carried out to understand in what manner they change the sensor properties of the SnO micro-disks onto interdigitated electrodes. The external heating method presented higher sensor signal, best LOD, and lower recovery time, mainly due to the lack of a temperature gradient between the SnO disks and the chamber atmosphere. On the other hand, response time was shown to be the same regardless of the method. Briefly, the authors used thermodynamic equations to better understand the temperature effect on the gas-solid interactions occurring between SnO disks and NO2 species. |
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Heating Method Effect on SnO Micro-Disks as NO2 Gas SensorSnOgas sensorheating modeself-heatingexternal heatingNO2There is an increasing concern about NOx emission, and many studies have been carried out using metal oxide semiconductors (MOS) aiming its detection. Among the MOS, the SnO micro-disks present a high sensor response and a great selectivity toward NO2. Nevertheless, sensor signal, limit of detection (LOD), and recovery time are related to the experimental setup used to carry on the measurements. Thus, two different heating methods (self-heating and external heating) have been carried out to understand in what manner they change the sensor properties of the SnO micro-disks onto interdigitated electrodes. The external heating method presented higher sensor signal, best LOD, and lower recovery time, mainly due to the lack of a temperature gradient between the SnO disks and the chamber atmosphere. On the other hand, response time was shown to be the same regardless of the method. Briefly, the authors used thermodynamic equations to better understand the temperature effect on the gas-solid interactions occurring between SnO disks and NO2 species.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Surrey, Adv Technol Inst, Guildford, Surrey, EnglandSao Paulo State Univ, Dept Phys Chem, Araraquara, BrazilSao Paulo State Univ, Dept Phys Chem, Araraquara, BrazilFAPESP: 2013/07296-2FAPESP: 2015/21033-0FAPESP: 2017/12870-0FAPESP: 2017/26219-0CNPq: 447760/2014-9CNPq: 303542/2015-2CNPq: 443138/2016-8Frontiers Media SaUniv SurreyUniversidade Estadual Paulista (Unesp)Masteghin, Mateus G. [UNESP]Godoi, Denis R. M. [UNESP]Orlandi, Marcelo O. [UNESP]2019-10-04T12:39:38Z2019-10-04T12:39:38Z2019-07-16info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article8http://dx.doi.org/10.3389/fmats.2019.00171Frontiers In Materials. Lausanne: Frontiers Media Sa, v. 6, 8 p., 2019.2296-8016http://hdl.handle.net/11449/18591210.3389/fmats.2019.00171WOS:000475854300001Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengFrontiers In Materialsinfo:eu-repo/semantics/openAccess2021-10-23T19:02:20Zoai:repositorio.unesp.br:11449/185912Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:59:58.919785Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Heating Method Effect on SnO Micro-Disks as NO2 Gas Sensor |
title |
Heating Method Effect on SnO Micro-Disks as NO2 Gas Sensor |
spellingShingle |
Heating Method Effect on SnO Micro-Disks as NO2 Gas Sensor Masteghin, Mateus G. [UNESP] SnO gas sensor heating mode self-heating external heating NO2 |
title_short |
Heating Method Effect on SnO Micro-Disks as NO2 Gas Sensor |
title_full |
Heating Method Effect on SnO Micro-Disks as NO2 Gas Sensor |
title_fullStr |
Heating Method Effect on SnO Micro-Disks as NO2 Gas Sensor |
title_full_unstemmed |
Heating Method Effect on SnO Micro-Disks as NO2 Gas Sensor |
title_sort |
Heating Method Effect on SnO Micro-Disks as NO2 Gas Sensor |
author |
Masteghin, Mateus G. [UNESP] |
author_facet |
Masteghin, Mateus G. [UNESP] Godoi, Denis R. M. [UNESP] Orlandi, Marcelo O. [UNESP] |
author_role |
author |
author2 |
Godoi, Denis R. M. [UNESP] Orlandi, Marcelo O. [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Univ Surrey Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Masteghin, Mateus G. [UNESP] Godoi, Denis R. M. [UNESP] Orlandi, Marcelo O. [UNESP] |
dc.subject.por.fl_str_mv |
SnO gas sensor heating mode self-heating external heating NO2 |
topic |
SnO gas sensor heating mode self-heating external heating NO2 |
description |
There is an increasing concern about NOx emission, and many studies have been carried out using metal oxide semiconductors (MOS) aiming its detection. Among the MOS, the SnO micro-disks present a high sensor response and a great selectivity toward NO2. Nevertheless, sensor signal, limit of detection (LOD), and recovery time are related to the experimental setup used to carry on the measurements. Thus, two different heating methods (self-heating and external heating) have been carried out to understand in what manner they change the sensor properties of the SnO micro-disks onto interdigitated electrodes. The external heating method presented higher sensor signal, best LOD, and lower recovery time, mainly due to the lack of a temperature gradient between the SnO disks and the chamber atmosphere. On the other hand, response time was shown to be the same regardless of the method. Briefly, the authors used thermodynamic equations to better understand the temperature effect on the gas-solid interactions occurring between SnO disks and NO2 species. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-04T12:39:38Z 2019-10-04T12:39:38Z 2019-07-16 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.3389/fmats.2019.00171 Frontiers In Materials. Lausanne: Frontiers Media Sa, v. 6, 8 p., 2019. 2296-8016 http://hdl.handle.net/11449/185912 10.3389/fmats.2019.00171 WOS:000475854300001 |
url |
http://dx.doi.org/10.3389/fmats.2019.00171 http://hdl.handle.net/11449/185912 |
identifier_str_mv |
Frontiers In Materials. Lausanne: Frontiers Media Sa, v. 6, 8 p., 2019. 2296-8016 10.3389/fmats.2019.00171 WOS:000475854300001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Frontiers In Materials |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
8 |
dc.publisher.none.fl_str_mv |
Frontiers Media Sa |
publisher.none.fl_str_mv |
Frontiers Media Sa |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128734479253504 |