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Article: TiO2 nanotube arrays modified with nanoparticles of platinum group metals (Pt, Pd, Ru): enhancement on photoelectrochemical performance

TitleTiO2 nanotube arrays modified with nanoparticles of platinum group metals (Pt, Pd, Ru): enhancement on photoelectrochemical performance
Authors
KeywordsTiO2 nanotube arrays
Platinum group metal nanoparticles
Photoelectrocatalysis
Hydrogen production
Water splitting
Issue Date2019
PublisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=1388-0764
Citation
Journal of Nanoparticle Research, 2019, v. 21 n. 2, article no. 29 How to Cite?
AbstractHighly ordered TiO2 nanotube arrays (TiO2 NTs) were synthesized by anodization method using a titanium foil and further modified with nanoparticles (Ø = 2~10 nm) of three platinum group metals (that is, platinum, palladium, and ruthenium) through potentiostatic pulsed electrodeposition method to obtain the composite material. Compared with pure TiO2 NTs, all the three composite samples (M-TiO2 NTs, M = Pt, Pd, Ru) showed different enhancement effects on the light responses, as well as different photoelectrochemical performances. In this study, the performance of M-TiO2 NTs, which worked as photoanode and cathode, was investigated. Ru-TiO2 exhibited the best degradation yield (~ 85.8%) when applied as photoanode under visible light illumination, which indicated the platinum group metal could also be induced under visible irradiation, not just served as the co-catalyst. M-TiO2 NTs as cathode were evaluated under the hydrogen evolution reaction (HER). The three M-TiO2 NT electrodes showed an improved efficiency over pure TiO2 NTs, while Pt-TiO2 NTs performed even better (without any sacrificial agent) with higher Faradic efficiency than platinum electrode in the photoelectrocatalytic hydrogen production, which could be explained by the uniform and fine metal nanoparticles on the surface of TiO2 NTs to offer abundant active sites for the reaction.
Persistent Identifierhttp://hdl.handle.net/10722/272257
ISSN
2023 Impact Factor: 2.1
2023 SCImago Journal Rankings: 0.416
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLi, F-
dc.contributor.authorHuang, H-
dc.contributor.authorLi, G-
dc.contributor.authorLeung, DYC-
dc.date.accessioned2019-07-20T10:38:45Z-
dc.date.available2019-07-20T10:38:45Z-
dc.date.issued2019-
dc.identifier.citationJournal of Nanoparticle Research, 2019, v. 21 n. 2, article no. 29-
dc.identifier.issn1388-0764-
dc.identifier.urihttp://hdl.handle.net/10722/272257-
dc.description.abstractHighly ordered TiO2 nanotube arrays (TiO2 NTs) were synthesized by anodization method using a titanium foil and further modified with nanoparticles (Ø = 2~10 nm) of three platinum group metals (that is, platinum, palladium, and ruthenium) through potentiostatic pulsed electrodeposition method to obtain the composite material. Compared with pure TiO2 NTs, all the three composite samples (M-TiO2 NTs, M = Pt, Pd, Ru) showed different enhancement effects on the light responses, as well as different photoelectrochemical performances. In this study, the performance of M-TiO2 NTs, which worked as photoanode and cathode, was investigated. Ru-TiO2 exhibited the best degradation yield (~ 85.8%) when applied as photoanode under visible light illumination, which indicated the platinum group metal could also be induced under visible irradiation, not just served as the co-catalyst. M-TiO2 NTs as cathode were evaluated under the hydrogen evolution reaction (HER). The three M-TiO2 NT electrodes showed an improved efficiency over pure TiO2 NTs, while Pt-TiO2 NTs performed even better (without any sacrificial agent) with higher Faradic efficiency than platinum electrode in the photoelectrocatalytic hydrogen production, which could be explained by the uniform and fine metal nanoparticles on the surface of TiO2 NTs to offer abundant active sites for the reaction.-
dc.languageeng-
dc.publisherSpringer Verlag Dordrecht. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=1388-0764-
dc.relation.ispartofJournal of Nanoparticle Research-
dc.subjectTiO2 nanotube arrays-
dc.subjectPlatinum group metal nanoparticles-
dc.subjectPhotoelectrocatalysis-
dc.subjectHydrogen production-
dc.subjectWater splitting-
dc.titleTiO2 nanotube arrays modified with nanoparticles of platinum group metals (Pt, Pd, Ru): enhancement on photoelectrochemical performance-
dc.typeArticle-
dc.identifier.emailLeung, DYC: ycleung@hku.hk-
dc.identifier.authorityLeung, DYC=rp00149-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s11051-018-4443-8-
dc.identifier.scopuseid_2-s2.0-85060949330-
dc.identifier.hkuros299095-
dc.identifier.volume21-
dc.identifier.issue2-
dc.identifier.spagearticle no. 29-
dc.identifier.epagearticle no. 29-
dc.identifier.isiWOS:000457419100001-
dc.publisher.placeNetherlands-
dc.identifier.issnl1388-0764-

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