Porous NiTiO3/TiO2 nanostructures for photocatatalytic hydrogen evolution

We present a strategy to produce porous NiTiO3/TiO2 nanostructures with excellent photocatalytic activity toward hydrogen generation. In a first step, nickel-doped TiO2 needle bundles were synthesized by a hydrothermal procedure. Through the sintering in air of these nanostructures, porous NiTiO3/Ti...

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Autores: Xing, Congcong, Liu, Yongpeng, Zhang, Yu|||0009-0006-6836-9500, Liu, Junfeng, Zhang, Ting, Soler Turu, Lluís|||0000-0003-1591-3366, Llorca Piqué, Jordi|||0000-0002-7447-9582
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/174048
Acceso en línea:https://hdl.handle.net/2117/174048
https://dx.doi.org/10.1039/c9ta04763h
Access Level:acceso abierto
Palabra clave:Nanostructures--Optical properties
Photocatalysis
Nanoestructures -- Propietats òptiques
Fotocatàlisi
Àrees temàtiques de la UPC::Energies
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spelling Porous NiTiO3/TiO2 nanostructures for photocatatalytic hydrogen evolutionXing, CongcongLiu, YongpengZhang, Yu|||0009-0006-6836-9500Liu, JunfengZhang, TingSoler Turu, Lluís|||0000-0003-1591-3366Llorca Piqué, Jordi|||0000-0002-7447-9582Nanostructures--Optical propertiesPhotocatalysisNanoestructures -- Propietats òptiquesFotocatàlisiÀrees temàtiques de la UPC::EnergiesWe present a strategy to produce porous NiTiO3/TiO2 nanostructures with excellent photocatalytic activity toward hydrogen generation. In a first step, nickel-doped TiO2 needle bundles were synthesized by a hydrothermal procedure. Through the sintering in air of these nanostructures, porous NiTiO3/TiO2 heterostructured rods were obtained. Alternatively, the annealing in argon of the nickel-doped TiO2 needle bundles resulted in NiOx/TiO2 elongated nanostructures. Porous NiTiO3/TiO2 structures were tested for hydrogen evolution in the presence of ethanol. Such porous heterostructures exhibited superior photocatalytic activity toward hydrogen generation, with hydrogen production rates up to 11.5 mmol h-1 g-1 at room temperature. This excellent performance is related here to the optoelectronic properties and geometric parameters of the material.Peer ReviewedRoyal Society of Chemistry (RSC)20192019-01-0120192019-12-18journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/174048https://dx.doi.org/10.1039/c9ta04763hreponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1740482026-05-27T15:37:01Z
dc.title.none.fl_str_mv Porous NiTiO3/TiO2 nanostructures for photocatatalytic hydrogen evolution
title Porous NiTiO3/TiO2 nanostructures for photocatatalytic hydrogen evolution
spellingShingle Porous NiTiO3/TiO2 nanostructures for photocatatalytic hydrogen evolution
Xing, Congcong
Nanostructures--Optical properties
Photocatalysis
Nanoestructures -- Propietats òptiques
Fotocatàlisi
Àrees temàtiques de la UPC::Energies
title_short Porous NiTiO3/TiO2 nanostructures for photocatatalytic hydrogen evolution
title_full Porous NiTiO3/TiO2 nanostructures for photocatatalytic hydrogen evolution
title_fullStr Porous NiTiO3/TiO2 nanostructures for photocatatalytic hydrogen evolution
title_full_unstemmed Porous NiTiO3/TiO2 nanostructures for photocatatalytic hydrogen evolution
title_sort Porous NiTiO3/TiO2 nanostructures for photocatatalytic hydrogen evolution
dc.creator.none.fl_str_mv Xing, Congcong
Liu, Yongpeng
Zhang, Yu|||0009-0006-6836-9500
Liu, Junfeng
Zhang, Ting
Soler Turu, Lluís|||0000-0003-1591-3366
Llorca Piqué, Jordi|||0000-0002-7447-9582
author Xing, Congcong
author_facet Xing, Congcong
Liu, Yongpeng
Zhang, Yu|||0009-0006-6836-9500
Liu, Junfeng
Zhang, Ting
Soler Turu, Lluís|||0000-0003-1591-3366
Llorca Piqué, Jordi|||0000-0002-7447-9582
author_role author
author2 Liu, Yongpeng
Zhang, Yu|||0009-0006-6836-9500
Liu, Junfeng
Zhang, Ting
Soler Turu, Lluís|||0000-0003-1591-3366
Llorca Piqué, Jordi|||0000-0002-7447-9582
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Nanostructures--Optical properties
Photocatalysis
Nanoestructures -- Propietats òptiques
Fotocatàlisi
Àrees temàtiques de la UPC::Energies
topic Nanostructures--Optical properties
Photocatalysis
Nanoestructures -- Propietats òptiques
Fotocatàlisi
Àrees temàtiques de la UPC::Energies
description We present a strategy to produce porous NiTiO3/TiO2 nanostructures with excellent photocatalytic activity toward hydrogen generation. In a first step, nickel-doped TiO2 needle bundles were synthesized by a hydrothermal procedure. Through the sintering in air of these nanostructures, porous NiTiO3/TiO2 heterostructured rods were obtained. Alternatively, the annealing in argon of the nickel-doped TiO2 needle bundles resulted in NiOx/TiO2 elongated nanostructures. Porous NiTiO3/TiO2 structures were tested for hydrogen evolution in the presence of ethanol. Such porous heterostructures exhibited superior photocatalytic activity toward hydrogen generation, with hydrogen production rates up to 11.5 mmol h-1 g-1 at room temperature. This excellent performance is related here to the optoelectronic properties and geometric parameters of the material.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-01-01
2019
2019-12-18
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/174048
https://dx.doi.org/10.1039/c9ta04763h
url https://hdl.handle.net/2117/174048
https://dx.doi.org/10.1039/c9ta04763h
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry (RSC)
publisher.none.fl_str_mv Royal Society of Chemistry (RSC)
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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