Spaced TiO2 Nanotubes Enable Optimized Pt Atomic Layer Deposition for Efficient Photocatalytic H2 Generation

Zobrazit minimální záznam Ozkan, Selda Yoo, JeongEun Nguyen, Nhat Truong Mohajernija, Shiva Zazpe, Raul Přikryl, Jan Macák, Jan Schmuki, Patrik 2018-11-19T09:54:21Z 2018-11-19T09:54:21Z 2018-10-02
dc.identifier.issn 2191-1363
dc.description.abstract In the present work, we report the use of TiO2 nanotube (NT) layers with a regular intertube spacing that are decorated by Pt nanoparticles through the atomic layer deposition (ALD) of Pt. These Pt‐decorated spaced (SP) TiO2 NTs are subsequently explored for photocatalytic H2 evolution and are compared to classical close‐packed (CP) TiO2 NTs that are also decorated with various amounts of Pt by using ALD. On both tube types, by varying the number of ALD cycles, Pt nanoparticles of different sizes and areal densities are formed, uniformly decorating the inner and outer walls from tube top to tube bottom. The photocatalytic activity for H2 evolution strongly depends on the size and density of Pt nanoparticles, driven by the number of ALD cycles. We show that, for SP NTs, a much higher photocatalytic performance can be achieved with significantly smaller Pt nanoparticles (i.e. for fewer ALD cycles) compared to CP NTs. cs_CZ
dc.format p. 797-802 eng
dc.language.iso en cs_CZ
dc.publisher Wiley-VCH Verlag cs_CZ
dc.relation.ispartof ChemistryOpen.2018, vol. 7, issue 10
dc.rights Attribution-NonCommercial-NoDerivs 3.0 Czech Republic *
dc.rights.uri *
dc.subject anodization cs_CZ
dc.subject atomic layer deposition cs_CZ
dc.subject photocatalysis cs_CZ
dc.subject platinum cs_CZ
dc.subject spaced TiO2 nanotubes cs_CZ
dc.title Spaced TiO2 Nanotubes Enable Optimized Pt Atomic Layer Deposition for Efficient Photocatalytic H2 Generation cs_CZ
dc.type Article cs_CZ
dc.peerreviewed yes eng
dc.publicationstatus published eng
dc.project.ID EC/H2020/638857/EU/Towards New Generation of Solid-State Photovoltaic Cell: Harvesting Nanotubular Titania and Hybrid Chromophores/CHROMTISOL

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Attribution-NonCommercial-NoDerivs 3.0 Czech Republic Kromě případů, kde je uvedeno jinak, licence tohoto záznamu je Attribution-NonCommercial-NoDerivs 3.0 Czech Republic


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