In-situ sensor response of copper oxide urchin-like structures
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1109/ICSENS.2016.7808669 http://hdl.handle.net/11449/174149 |
Resumo: | In this work we report an advanced study of gas sensor performance of copper oxide (CuO) urchin-like structures synthesized by microwave assisted hydrothermal method. Copper oxide in an interesting p-type semiconductor in order to study the mechanisms related to the sensor response of CuO structures, we developed a special sample holder which enables the simultaneous characterization of materials by X-ray absorption near edge structure (XANES) and electrical measurements. Quantitative XANES analyses showed that the CuO material can have its surface completely reduced when exposed to H2 in N2 baseline and electrical measurements confirm the abrupt decrease in the material resistance. This superficial reduction is reversible after exposition of sample to a synthetic air atmosphere. Sensor response models for CuO material based on these findings were proposed. |
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Repositório Institucional da UNESP |
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In-situ sensor response of copper oxide urchin-like structurescopper oxidenanomaterialsSensorsIn this work we report an advanced study of gas sensor performance of copper oxide (CuO) urchin-like structures synthesized by microwave assisted hydrothermal method. Copper oxide in an interesting p-type semiconductor in order to study the mechanisms related to the sensor response of CuO structures, we developed a special sample holder which enables the simultaneous characterization of materials by X-ray absorption near edge structure (XANES) and electrical measurements. Quantitative XANES analyses showed that the CuO material can have its surface completely reduced when exposed to H2 in N2 baseline and electrical measurements confirm the abrupt decrease in the material resistance. This superficial reduction is reversible after exposition of sample to a synthetic air atmosphere. Sensor response models for CuO material based on these findings were proposed.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Interdisciplinary Lab of Electrochemistry and Ceramics IQ-UNESPDepartment of Chemistry and Environmental Science IBILCE-UNESPInterdisciplinary Lab of Electrochemistry and Ceramics IQ-UNESPDepartment of Chemistry and Environmental Science IBILCE-UNESPUniversidade Estadual Paulista (Unesp)Orlandi, M. O. [UNESP]Felix, A. A. [UNESP]Suman, P. H. [UNESP]Varela, J. A. [UNESP]Volanti, D. P. [UNESP]2018-12-11T17:09:33Z2018-12-11T17:09:33Z2017-01-05info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectapplication/pdfhttp://dx.doi.org/10.1109/ICSENS.2016.7808669Proceedings of IEEE Sensors.2168-92291930-0395http://hdl.handle.net/11449/17414910.1109/ICSENS.2016.78086692-s2.0-850109611002-s2.0-85010961100.pdf23547399804067250000-0001-9315-9392Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengProceedings of IEEE Sensors0,130info:eu-repo/semantics/openAccess2023-10-13T06:07:01Zoai:repositorio.unesp.br:11449/174149Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-13T06:07:01Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
In-situ sensor response of copper oxide urchin-like structures |
title |
In-situ sensor response of copper oxide urchin-like structures |
spellingShingle |
In-situ sensor response of copper oxide urchin-like structures Orlandi, M. O. [UNESP] copper oxide nanomaterials Sensors |
title_short |
In-situ sensor response of copper oxide urchin-like structures |
title_full |
In-situ sensor response of copper oxide urchin-like structures |
title_fullStr |
In-situ sensor response of copper oxide urchin-like structures |
title_full_unstemmed |
In-situ sensor response of copper oxide urchin-like structures |
title_sort |
In-situ sensor response of copper oxide urchin-like structures |
author |
Orlandi, M. O. [UNESP] |
author_facet |
Orlandi, M. O. [UNESP] Felix, A. A. [UNESP] Suman, P. H. [UNESP] Varela, J. A. [UNESP] Volanti, D. P. [UNESP] |
author_role |
author |
author2 |
Felix, A. A. [UNESP] Suman, P. H. [UNESP] Varela, J. A. [UNESP] Volanti, D. P. [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Orlandi, M. O. [UNESP] Felix, A. A. [UNESP] Suman, P. H. [UNESP] Varela, J. A. [UNESP] Volanti, D. P. [UNESP] |
dc.subject.por.fl_str_mv |
copper oxide nanomaterials Sensors |
topic |
copper oxide nanomaterials Sensors |
description |
In this work we report an advanced study of gas sensor performance of copper oxide (CuO) urchin-like structures synthesized by microwave assisted hydrothermal method. Copper oxide in an interesting p-type semiconductor in order to study the mechanisms related to the sensor response of CuO structures, we developed a special sample holder which enables the simultaneous characterization of materials by X-ray absorption near edge structure (XANES) and electrical measurements. Quantitative XANES analyses showed that the CuO material can have its surface completely reduced when exposed to H2 in N2 baseline and electrical measurements confirm the abrupt decrease in the material resistance. This superficial reduction is reversible after exposition of sample to a synthetic air atmosphere. Sensor response models for CuO material based on these findings were proposed. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-05 2018-12-11T17:09:33Z 2018-12-11T17:09:33Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1109/ICSENS.2016.7808669 Proceedings of IEEE Sensors. 2168-9229 1930-0395 http://hdl.handle.net/11449/174149 10.1109/ICSENS.2016.7808669 2-s2.0-85010961100 2-s2.0-85010961100.pdf 2354739980406725 0000-0001-9315-9392 |
url |
http://dx.doi.org/10.1109/ICSENS.2016.7808669 http://hdl.handle.net/11449/174149 |
identifier_str_mv |
Proceedings of IEEE Sensors. 2168-9229 1930-0395 10.1109/ICSENS.2016.7808669 2-s2.0-85010961100 2-s2.0-85010961100.pdf 2354739980406725 0000-0001-9315-9392 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Proceedings of IEEE Sensors 0,130 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
Scopus 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 |
|
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1799964545621426176 |