Obtención de electrodos nanoestructurados de óxido de zinc vía anodizado para fotólisis de agua

ilustraciones, tablas

Autores:: Romero Benavides, Luis Eduardo

Tipo de recurso:

Fecha de publicación:: 2021

Institución:: Universidad Nacional de Colombia

Repositorio:: Universidad Nacional de Colombia

Idioma:: spa

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network_acronym_str	UNACIONAL2
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repository_id_str
dc.title.spa.fl_str_mv	Obtención de electrodos nanoestructurados de óxido de zinc vía anodizado para fotólisis de agua
dc.title.translated.eng.fl_str_mv	Synthesis of zinc oxide nanostructured electrodes for water splitting
title	Obtención de electrodos nanoestructurados de óxido de zinc vía anodizado para fotólisis de agua
spellingShingle	Obtención de electrodos nanoestructurados de óxido de zinc vía anodizado para fotólisis de agua 540 - Química y ciencias afines::542 - Técnicas, procedimientos, aparatos, equipos, materiales Fotoquímica Photochemistry Conductividad eléctrica Electric conductivity Nanomateriales Óxido de zinc ZnO Fotocatálisis Zinc Oxide Nanostructures Photocatalyst PEC efficiency Fotolisis
title_short	Obtención de electrodos nanoestructurados de óxido de zinc vía anodizado para fotólisis de agua
title_full	Obtención de electrodos nanoestructurados de óxido de zinc vía anodizado para fotólisis de agua
title_fullStr	Obtención de electrodos nanoestructurados de óxido de zinc vía anodizado para fotólisis de agua
title_full_unstemmed	Obtención de electrodos nanoestructurados de óxido de zinc vía anodizado para fotólisis de agua
title_sort	Obtención de electrodos nanoestructurados de óxido de zinc vía anodizado para fotólisis de agua
dc.creator.fl_str_mv	Romero Benavides, Luis Eduardo
dc.contributor.advisor.none.fl_str_mv	Zea Ramírez, Hugo Ricardo Quintero Cortés, Francisco Javier
dc.contributor.author.none.fl_str_mv	Romero Benavides, Luis Eduardo
dc.contributor.researchgroup.spa.fl_str_mv	Grupo de Investigación en Materiales, Catálisis y Medio Ambiente
dc.subject.ddc.spa.fl_str_mv	540 - Química y ciencias afines::542 - Técnicas, procedimientos, aparatos, equipos, materiales
topic	540 - Química y ciencias afines::542 - Técnicas, procedimientos, aparatos, equipos, materiales Fotoquímica Photochemistry Conductividad eléctrica Electric conductivity Nanomateriales Óxido de zinc ZnO Fotocatálisis Zinc Oxide Nanostructures Photocatalyst PEC efficiency Fotolisis
dc.subject.lemb.none.fl_str_mv	Fotoquímica Photochemistry Conductividad eléctrica Electric conductivity
dc.subject.proposal.spa.fl_str_mv	Nanomateriales Óxido de zinc ZnO Fotocatálisis
dc.subject.proposal.eng.fl_str_mv	Zinc Oxide Nanostructures Photocatalyst PEC efficiency
dc.subject.spines.none.fl_str_mv	Fotolisis
description	ilustraciones, tablas
publishDate	2021
dc.date.accessioned.none.fl_str_mv	2021-07-19T21:42:38Z
dc.date.available.none.fl_str_mv	2021-07-19T21:42:38Z
dc.date.issued.none.fl_str_mv	2021-03-22
dc.type.spa.fl_str_mv	Trabajo de grado - Maestría
dc.type.driver.spa.fl_str_mv	info:eu-repo/semantics/masterThesis
dc.type.version.spa.fl_str_mv	info:eu-repo/semantics/acceptedVersion
dc.type.content.spa.fl_str_mv	Text
dc.type.redcol.spa.fl_str_mv	http://purl.org/redcol/resource_type/TM
status_str	acceptedVersion
dc.identifier.uri.none.fl_str_mv	https://repositorio.unal.edu.co/handle/unal/79820
dc.identifier.instname.spa.fl_str_mv	Universidad Nacional de Colombia
dc.identifier.reponame.spa.fl_str_mv	Repositorio Institucional Universidad Nacional de Colombia
dc.identifier.repourl.spa.fl_str_mv	https://repositorio.unal.edu.co/
url	https://repositorio.unal.edu.co/handle/unal/79820 https://repositorio.unal.edu.co/
identifier_str_mv	Universidad Nacional de Colombia Repositorio Institucional Universidad Nacional de Colombia
dc.language.iso.spa.fl_str_mv	spa
language	spa
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dc.rights.spa.fl_str_mv	Derechos reservados al autor, 2021
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dc.rights.license.spa.fl_str_mv	Atribución-CompartirIgual 4.0 Internacional
dc.rights.uri.spa.fl_str_mv	http://creativecommons.org/licenses/by-sa/4.0/
dc.rights.accessrights.spa.fl_str_mv	info:eu-repo/semantics/openAccess
rights_invalid_str_mv	Atribución-CompartirIgual 4.0 Internacional Derechos reservados al autor, 2021 http://creativecommons.org/licenses/by-sa/4.0/ http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv	openAccess
dc.format.extent.spa.fl_str_mv	101 páginas
dc.format.mimetype.spa.fl_str_mv	application/pdf
dc.publisher.spa.fl_str_mv	Universidad Nacional de Colombia
dc.publisher.program.spa.fl_str_mv	Bogotá - Ingeniería - Maestría en Ingeniería - Ingeniería Química
dc.publisher.department.spa.fl_str_mv	Departamento de Ingeniería Química y Ambiental
dc.publisher.faculty.spa.fl_str_mv	Facultad de Ingeniería
dc.publisher.place.spa.fl_str_mv	Bogotá, Colombia
dc.publisher.branch.spa.fl_str_mv	Universidad Nacional de Colombia - Sede Bogotá
institution	Universidad Nacional de Colombia
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spelling	Atribución-CompartirIgual 4.0 InternacionalDerechos reservados al autor, 2021http://creativecommons.org/licenses/by-sa/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Zea Ramírez, Hugo Ricardo84e91344e05ee783ba3d0544b83bda6cQuintero Cortés, Francisco Javier9791a6ebed95dee7e47c2b44b993c98eRomero Benavides, Luis Eduardo3b14227d21058b832b74be9e31fcc314Grupo de Investigación en Materiales, Catálisis y Medio Ambiente2021-07-19T21:42:38Z2021-07-19T21:42:38Z2021-03-22https://repositorio.unal.edu.co/handle/unal/79820Universidad Nacional de ColombiaRepositorio Institucional Universidad Nacional de Colombiahttps://repositorio.unal.edu.co/ilustraciones, tablasSe fabricó fotoelectrodos por anodización de zinc metálico en electrolitos de Na2CO3 y KHCO3 preparados en solventes mixtos de agua y etilenglicol, posteriormente recocidos a 300°C durante 1 hora. Este proceso produjo recubrimientos de ZnO nanoestructurados de diferente morfología y grosor de acuerdo con la conductividad del medio de anodización. Se estudió características de los recubrimientos por diferentes técnicas que incluyen microscopía electrónica SEM y TEM, difracción de rayos X, espectrofotometría para calcular el band gap óptico, sortometría para área BET y medidas electroquímicas en una celda PEC. La evaluación de los fotoelectrodos PEC arrojó eficiencias IPCE entre 5,4 y 20,4%. (Texto tomado de la fuente)Photoelectrodes were made by anodizing metallic zinc in electrolytes of Na2CO3 and KHCO3 prepared in mixed solvents of water and ethylene glycol, subsequently annealed at 300 °C for 1 hour. This process produced nanostructured ZnO coatings of different morphology and thickness according to the conductivity of the anodizing medium. Features of the coatings were studied by different techniques including SEM and TEM electron microscopy, X-ray diffraction, spectrophotometry to calculate optical band gap, sorptometry for BET surface area and electrochemical measurements in a PEC cell. The evaluation of the PEC photoelectrodes yielded IPCE efficiencies between 5.4 and 20.4%. 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Chem., vol. 22, no. 47, pp. 24591–24596, Dec. 2012, doi: 10.1039/c2jm35413f.GeneralLICENSElicense.txtlicense.txttext/plain; charset=utf-83964https://repositorio.unal.edu.co/bitstream/unal/79820/1/license.txtcccfe52f796b7c63423298c2d3365fc6MD51ORIGINALObtención de electrodos nanoestructrados de ZnO.pdfObtención de electrodos nanoestructrados de ZnO.pdfTesis de Maestría en Ingeniería - Ingeniería Químicaapplication/pdf2370455https://repositorio.unal.edu.co/bitstream/unal/79820/2/Obtenci%c3%b3n%20de%20electrodos%20nanoestructrados%20de%20ZnO.pdf2d520eb8bb0dce91f6700da2b7607a93MD52THUMBNAILObtención de electrodos nanoestructrados de ZnO.pdf.jpgObtención de electrodos nanoestructrados de ZnO.pdf.jpgGenerated Thumbnailimage/jpeg4887https://repositorio.unal.edu.co/bitstream/unal/79820/3/Obtenci%c3%b3n%20de%20electrodos%20nanoestructrados%20de%20ZnO.pdf.jpg544ef3dd3d468939a3d8a9002843708eMD53unal/79820oai:repositorio.unal.edu.co:unal/798202023-07-24 23:03:51.692Repositorio Institucional 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Colombiarepositorio_nal@unal.edu.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Obtención de electrodos nanoestructurados de óxido de zinc vía anodizado para fotólisis de agua

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