Characterization of TiO2 Nanoparticle’s Morphology and its Influence on the Hydrogen Sorption Kinetics of MgH2

Detalhes bibliográficos
Autor(a) principal: Pereira,Anderson de Farias
Data de Publicação: 2019
Outros Autores: Paciornik,Sidnei, Santos,Dilson Silva dos, Jardim,Paula Mendes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000700268
Resumo: TiO2 nanorods present good performance as catalysts in the sorption behavior of magnesium hydride. In the present study, the morphology of TiO2 nanorods produced from titanate nanotubes heat-treated at 550 °C (NR550), 650 °C (NR650) and 750 °C (NR750) was characterized and their catalytic role on the sorption kinetics of MgH2 was evaluated. For this, ball-milled MgH2-TiO2 nanocomposites with 5 wt% of additives were prepared and the materials were characterized by X-ray diffraction (XRD), BET surface area and Transmission Electron Microscopy (TEM). The hydrogen sorption kinetics of the composites were evaluated in a Sievert’s apparatus at 350 °C. The results indicated that NR550 and NR650 consisted of a mixture of nanorods and nanoparticles and NR750 of coarser nanoparticles of TiO2-anatase with a small amount of rutile. Composites with NR750 and NR550 presented the best sorption kinetics, suggesting the positive effect of the presence of rutile and of anatase nanorods, respectively, on the sorption properties of the material.
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spelling Characterization of TiO2 Nanoparticle’s Morphology and its Influence on the Hydrogen Sorption Kinetics of MgH2hydrogen storagemagnesium hydrideTiO2 nanorods1D nanomaterialsTiO2 nanorods present good performance as catalysts in the sorption behavior of magnesium hydride. In the present study, the morphology of TiO2 nanorods produced from titanate nanotubes heat-treated at 550 °C (NR550), 650 °C (NR650) and 750 °C (NR750) was characterized and their catalytic role on the sorption kinetics of MgH2 was evaluated. For this, ball-milled MgH2-TiO2 nanocomposites with 5 wt% of additives were prepared and the materials were characterized by X-ray diffraction (XRD), BET surface area and Transmission Electron Microscopy (TEM). The hydrogen sorption kinetics of the composites were evaluated in a Sievert’s apparatus at 350 °C. The results indicated that NR550 and NR650 consisted of a mixture of nanorods and nanoparticles and NR750 of coarser nanoparticles of TiO2-anatase with a small amount of rutile. Composites with NR750 and NR550 presented the best sorption kinetics, suggesting the positive effect of the presence of rutile and of anatase nanorods, respectively, on the sorption properties of the material.ABM, ABC, ABPol2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000700268Materials Research v.22 suppl.1 2019reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2018-0821info:eu-repo/semantics/openAccessPereira,Anderson de FariasPaciornik,SidneiSantos,Dilson Silva dosJardim,Paula Mendeseng2019-12-16T00:00:00Zoai:scielo:S1516-14392019000700268Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2019-12-16T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Characterization of TiO2 Nanoparticle’s Morphology and its Influence on the Hydrogen Sorption Kinetics of MgH2
title Characterization of TiO2 Nanoparticle’s Morphology and its Influence on the Hydrogen Sorption Kinetics of MgH2
spellingShingle Characterization of TiO2 Nanoparticle’s Morphology and its Influence on the Hydrogen Sorption Kinetics of MgH2
Pereira,Anderson de Farias
hydrogen storage
magnesium hydride
TiO2 nanorods
1D nanomaterials
title_short Characterization of TiO2 Nanoparticle’s Morphology and its Influence on the Hydrogen Sorption Kinetics of MgH2
title_full Characterization of TiO2 Nanoparticle’s Morphology and its Influence on the Hydrogen Sorption Kinetics of MgH2
title_fullStr Characterization of TiO2 Nanoparticle’s Morphology and its Influence on the Hydrogen Sorption Kinetics of MgH2
title_full_unstemmed Characterization of TiO2 Nanoparticle’s Morphology and its Influence on the Hydrogen Sorption Kinetics of MgH2
title_sort Characterization of TiO2 Nanoparticle’s Morphology and its Influence on the Hydrogen Sorption Kinetics of MgH2
author Pereira,Anderson de Farias
author_facet Pereira,Anderson de Farias
Paciornik,Sidnei
Santos,Dilson Silva dos
Jardim,Paula Mendes
author_role author
author2 Paciornik,Sidnei
Santos,Dilson Silva dos
Jardim,Paula Mendes
author2_role author
author
author
dc.contributor.author.fl_str_mv Pereira,Anderson de Farias
Paciornik,Sidnei
Santos,Dilson Silva dos
Jardim,Paula Mendes
dc.subject.por.fl_str_mv hydrogen storage
magnesium hydride
TiO2 nanorods
1D nanomaterials
topic hydrogen storage
magnesium hydride
TiO2 nanorods
1D nanomaterials
description TiO2 nanorods present good performance as catalysts in the sorption behavior of magnesium hydride. In the present study, the morphology of TiO2 nanorods produced from titanate nanotubes heat-treated at 550 °C (NR550), 650 °C (NR650) and 750 °C (NR750) was characterized and their catalytic role on the sorption kinetics of MgH2 was evaluated. For this, ball-milled MgH2-TiO2 nanocomposites with 5 wt% of additives were prepared and the materials were characterized by X-ray diffraction (XRD), BET surface area and Transmission Electron Microscopy (TEM). The hydrogen sorption kinetics of the composites were evaluated in a Sievert’s apparatus at 350 °C. The results indicated that NR550 and NR650 consisted of a mixture of nanorods and nanoparticles and NR750 of coarser nanoparticles of TiO2-anatase with a small amount of rutile. Composites with NR750 and NR550 presented the best sorption kinetics, suggesting the positive effect of the presence of rutile and of anatase nanorods, respectively, on the sorption properties of the material.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000700268
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000700268
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-mr-2018-0821
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.22 suppl.1 2019
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
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