Hydrogen Chemical Configuration and Thermal Stability in Tungsten Disulfide Nanoparticles Exposed to Hydrogen Plasma

Producción Científica

Detalles Bibliográficos
Autores: Laikhtman, Alex, Makrinich, Gennady, Sezen, Meltem, Yildizhan, Melike Mercan, Martínez, Jose Luís, Dinescu, Doru, Prodana, Mariana, Enachescu, Marius, Alonso Martín, Julio Alfonso, Zak, Alla
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Universidad de Valladolid
Repositorio:UVaDOC. Repositorio Documental de la Universidad de Valladolid
OAI Identifier:oai:uvadoc.uva.es:10324/29141
Acceso en línea:https://doi.org/10.1021/acs.jpcc.7b00074
http://uvadoc.uva.es/handle/10324/29141
Access Level:acceso abierto
Palabra clave:Hydrogen Plasma
Plasma de hidrógeno
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spelling Hydrogen Chemical Configuration and Thermal Stability in Tungsten Disulfide Nanoparticles Exposed to Hydrogen PlasmaLaikhtman, AlexMakrinich, GennadySezen, MeltemYildizhan, Melike MercanMartínez, Jose LuísDinescu, DoruProdana, MarianaEnachescu, MariusAlonso Martín, Julio AlfonsoZak, AllaHydrogen PlasmaPlasma de hidrógenoProducción CientíficaThe chemical configuration and interaction mechanism of hydrogen adsorbed in inorganic nanoparticles of WS2 are investigated. Our recent approaches of using hydrogen activated by either microwave or radiofrequency plasma dramatically increased the efficiency of its adsorption on the nanoparticle surface. In the current work we put an emphasis on elucidation of the chemical configuration of the adsorbed hydrogen. This configuration is of primary importance as it affects its adsorption stability and possibility of release. To get insight on the chemical configuration, we combined the experimental analysis methods with theoretical modeling based on the density functional theory (DFT). Micro-Raman spectroscopy was used as a primary tool to elucidate chemical bonding of hydrogen and to distinguish between chemi- and physisorption. Hydrogen adsorbed in molecular form (H2) was clearly identified in all plasma-hydrogenated WS2 nanoparticles samples. It was shown that the adsorbed hydrogen is generally stable under high vacuum conditions at room temperature, which implies its stability at the ambient atmosphere. A DFT model was developed to simulate the adsorption of hydrogen in the WS2 nanoparticles. This model considers various adsorption sites and identifies the preferential locations of the adsorbed hydrogen in several WS2 structures, demonstrating good concordance between theory and experiment and providing tools for optimizing hydrogen exposure conditions and the type of substrate materials.2018-08-08Ministerio de Economía, Industria y Competitividad (Project MAT2014- 54378-R)Junta de Castilla y León (programa de apoyo a proyectos de investigación - Ref. VA050U14)American Chemical Society2017info:eu-repo/semantics/articleapplication/pdfhttps://doi.org/10.1021/acs.jpcc.7b00074http://uvadoc.uva.es/handle/10324/29141reponame:UVaDOC. Repositorio Documental de la Universidad de Valladolidinstname:Universidad de ValladolidIngléshttps://pubs.acs.org/doi/abs/10.1021/acs.jpcc.7b00074info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/oai:uvadoc.uva.es:10324/291412026-06-13T12:44:47Z
dc.title.none.fl_str_mv Hydrogen Chemical Configuration and Thermal Stability in Tungsten Disulfide Nanoparticles Exposed to Hydrogen Plasma
title Hydrogen Chemical Configuration and Thermal Stability in Tungsten Disulfide Nanoparticles Exposed to Hydrogen Plasma
spellingShingle Hydrogen Chemical Configuration and Thermal Stability in Tungsten Disulfide Nanoparticles Exposed to Hydrogen Plasma
Laikhtman, Alex
Hydrogen Plasma
Plasma de hidrógeno
title_short Hydrogen Chemical Configuration and Thermal Stability in Tungsten Disulfide Nanoparticles Exposed to Hydrogen Plasma
title_full Hydrogen Chemical Configuration and Thermal Stability in Tungsten Disulfide Nanoparticles Exposed to Hydrogen Plasma
title_fullStr Hydrogen Chemical Configuration and Thermal Stability in Tungsten Disulfide Nanoparticles Exposed to Hydrogen Plasma
title_full_unstemmed Hydrogen Chemical Configuration and Thermal Stability in Tungsten Disulfide Nanoparticles Exposed to Hydrogen Plasma
title_sort Hydrogen Chemical Configuration and Thermal Stability in Tungsten Disulfide Nanoparticles Exposed to Hydrogen Plasma
dc.creator.none.fl_str_mv Laikhtman, Alex
Makrinich, Gennady
Sezen, Meltem
Yildizhan, Melike Mercan
Martínez, Jose Luís
Dinescu, Doru
Prodana, Mariana
Enachescu, Marius
Alonso Martín, Julio Alfonso
Zak, Alla
author Laikhtman, Alex
author_facet Laikhtman, Alex
Makrinich, Gennady
Sezen, Meltem
Yildizhan, Melike Mercan
Martínez, Jose Luís
Dinescu, Doru
Prodana, Mariana
Enachescu, Marius
Alonso Martín, Julio Alfonso
Zak, Alla
author_role author
author2 Makrinich, Gennady
Sezen, Meltem
Yildizhan, Melike Mercan
Martínez, Jose Luís
Dinescu, Doru
Prodana, Mariana
Enachescu, Marius
Alonso Martín, Julio Alfonso
Zak, Alla
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Hydrogen Plasma
Plasma de hidrógeno
topic Hydrogen Plasma
Plasma de hidrógeno
description Producción Científica
publishDate 2017
dc.date.none.fl_str_mv 2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://doi.org/10.1021/acs.jpcc.7b00074
http://uvadoc.uva.es/handle/10324/29141
url https://doi.org/10.1021/acs.jpcc.7b00074
http://uvadoc.uva.es/handle/10324/29141
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://pubs.acs.org/doi/abs/10.1021/acs.jpcc.7b00074
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:UVaDOC. Repositorio Documental de la Universidad de Valladolid
instname:Universidad de Valladolid
instname_str Universidad de Valladolid
reponame_str UVaDOC. Repositorio Documental de la Universidad de Valladolid
collection UVaDOC. Repositorio Documental de la Universidad de Valladolid
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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