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Large scale chemical functionalization of locally curved graphene with nanometer resolution
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SYSNO ASEP 0534512 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Large scale chemical functionalization of locally curved graphene with nanometer resolution Author(s) Drogowska-Horna, Karolina A. (UFCH-W)
Valeš, Václav (UFCH-W) RID, ORCID
Plšek, Jan (UFCH-W) RID, ORCID
Michlová, Magdalena (UFCH-W)
Vejpravová, J. (CZ)
Kalbáč, Martin (UFCH-W) RID, ORCIDSource Title Carbon. - : Elsevier - ISSN 0008-6223
Roč. 164, AUG 2020 (2020), s. 207-214Number of pages 8 s. Language eng - English Country US - United States Keywords fluorinated graphene ; hydrogen storage ; biaxial strain ; reactivity ; curvature ; chemistry ; graphane ; bilayer Subject RIV CF - Physical ; Theoretical Chemistry OECD category Physical chemistry R&D Projects GA18-20357S GA ČR - Czech Science Foundation (CSF) LM2015073 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF16_026/0008382 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF16_013/0001821 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support UFCH-W - RVO:61388955 UT WOS 000536478300007 EID SCOPUS 85083033098 DOI 10.1016/j.carbon.2020.04.006 Annotation Anchoring various functional groups to graphene is the most versatile approach for tailoring its functional properties. To date, one must use a special tunneling microscope for attaching a molecule at a specific position on the graphene with resolution better than several hundred nanometers, however, achieving this resolution is impossible on a large scale. We demonstrate for the first time that chemical functionalization can be achieved with nanometer resolution by introducing strain with nanometer scale modulation into a graphene layer. The spatial distribution of the strain has been achieved by transferring a single-layer graphene (SLG) onto a substrate decorated by a few nm large nanoparticles (NPs). By changing the number of NPs on the substrate, the amount of locally strained SLG increases, as confirmed by atomic force microscopy (AFM) and Raman spectroscopy investigations. We further carried out hydrogenation and fluorination on the SLG with increasing amount of nanoscale corrugations. Raman spectroscopy, AFM and X-ray photoelectron spectroscopy revealed unambiguously that the level of functionalization increases proportionally with the number of NPs, which means an increasing number of the locally strained SLG. Our approach thus enables control of the amount and the position of functional groups on graphene with nanometer resolution. (C) 2020 The Authors. Published by Elsevier Ltd. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2021 Electronic address http://hdl.handle.net/11104/0312697
Number of the records: 1