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Direct Imaging of Atomic-Scale Surface Structures of Brookite TiO2 Nanoparticles by Frequency Modulation Atomic Force Microscopy in Liquid

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Asakawa, Hitoshi
dc.contributor.author Holmström, Eero
dc.contributor.author Foster, Adam S.
dc.contributor.author Kamimura, Sunao
dc.contributor.author Ohno, Teruhisa
dc.contributor.author Fukuma, Takeshi
dc.date.accessioned 2018-11-09T13:07:28Z
dc.date.available 2018-11-09T13:07:28Z
dc.date.issued 2018
dc.identifier.citation Asakawa , H , Holmström , E , Foster , A S , Kamimura , S , Ohno , T & Fukuma , T 2018 , ' Direct Imaging of Atomic-Scale Surface Structures of Brookite TiO 2 Nanoparticles by Frequency Modulation Atomic Force Microscopy in Liquid ' , Journal of Physical Chemistry C , vol. 122 , no. 42 , pp. 24085−24093 . https://doi.org/10.1021/acs.jpcc.8b06262 en
dc.identifier.issn 1932-7447
dc.identifier.issn 1932-7455
dc.identifier.other PURE UUID: b01a3193-7630-4c4d-8449-df77505ebdd3
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/b01a3193-7630-4c4d-8449-df77505ebdd3
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85055266152&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/29193666/SCI_Asakawa_Foster_Direct_Imaging_Revised_Manuscript.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/34636
dc.description.abstract Direct imaging of atomic-scale surface structures of TiO2 nanoparticles is a promising method for understanding the detailed mechanism of their photocatalytic activities. Atomic force microscopy (AFM) is one of the analytical tools used for direct imaging of surfaces, but atomic-scale AFM studies of TiO2 nanoparticles in liquid have not been reported. Here, we report two methods for fixing of TiO2 nanocrystals: an electrostatic method and a cross-linking method. Both methods enabled visualization of subnanoscale surface structures of brookite TiO2 nanoparticles in liquid by frequency modulation AFM (FM-AFM). The FM-AFM imaging results and density functional theory molecular dynamics calculations suggest that the subnanoscale structures in the FM-AFM images can be explained by the arrangement of the surface topmost atoms or their hydration structures on the brookite TiO2(210) surface. Our results open up various possibilities for studying atomic-scale surface structures of nanoparticles in liquids by AFM. en
dc.format.extent 24085−24093
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries Journal of Physical Chemistry C en
dc.relation.ispartofseries Volume 122, issue 42 en
dc.rights openAccess en
dc.title Direct Imaging of Atomic-Scale Surface Structures of Brookite TiO2 Nanoparticles by Frequency Modulation Atomic Force Microscopy in Liquid en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Kanazawa University
dc.contributor.department Department of Applied Physics
dc.contributor.department Kyushu Institute of Technology
dc.identifier.urn URN:NBN:fi:aalto-201811095677
dc.identifier.doi 10.1021/acs.jpcc.8b06262
dc.date.embargo info:eu-repo/date/embargoEnd/2019-10-03

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