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Graphite and Graphene Fairy Circles: A Bottom-Up Approach for the Formation of Nanocorrals.
Phan, Thanh Hai; Van Gorp, Hans; Li, Zhi; Trung Huynh, Thi Mien; Fujita, Yasuhiko; Verstraete, Lander; Eyley, Samuel; Thielemans, Wim; Uji-I, Hiroshi; Hirsch, Brandon E; Mertens, Stijn F L; Greenwood, John; Ivasenko, Oleksandr; De Feyter, Steven.
Afiliación
  • Phan TH; Department of Chemistry, Division of Molecular Imaging and Photonics , KU Leuven , Celestijnenlaan 200F , B-3001 Leuven , Belgium.
  • Van Gorp H; Department of Physics , Quy Nhon University , 170 An Duong Vuong , Quy Nhon , Vietnam.
  • Li Z; Department of Chemistry, Division of Molecular Imaging and Photonics , KU Leuven , Celestijnenlaan 200F , B-3001 Leuven , Belgium.
  • Trung Huynh TM; Department of Chemistry, Division of Molecular Imaging and Photonics , KU Leuven , Celestijnenlaan 200F , B-3001 Leuven , Belgium.
  • Fujita Y; Department of Chemistry, Division of Molecular Imaging and Photonics , KU Leuven , Celestijnenlaan 200F , B-3001 Leuven , Belgium.
  • Verstraete L; Department of Chemistry , Quy Nhon University , 170 An Duong Vuong , Quy Nhon , Vietnam.
  • Eyley S; Department of Chemistry, Division of Molecular Imaging and Photonics , KU Leuven , Celestijnenlaan 200F , B-3001 Leuven , Belgium.
  • Thielemans W; Department of Chemistry, Division of Molecular Imaging and Photonics , KU Leuven , Celestijnenlaan 200F , B-3001 Leuven , Belgium.
  • Uji-I H; Department of Chemical Engineering, Renewable Materials and Nanotechnology Group, Campus Kortrijk , KU Leuven , Etienne Sabbelaan 53 , 8500 Kortrijk , Belgium.
  • Hirsch BE; Department of Chemical Engineering, Renewable Materials and Nanotechnology Group, Campus Kortrijk , KU Leuven , Etienne Sabbelaan 53 , 8500 Kortrijk , Belgium.
  • Mertens SFL; Department of Chemistry, Division of Molecular Imaging and Photonics , KU Leuven , Celestijnenlaan 200F , B-3001 Leuven , Belgium.
  • Greenwood J; Department of Chemistry, Division of Molecular Imaging and Photonics , KU Leuven , Celestijnenlaan 200F , B-3001 Leuven , Belgium.
  • Ivasenko O; Department of Chemistry, Division of Molecular Imaging and Photonics , KU Leuven , Celestijnenlaan 200F , B-3001 Leuven , Belgium.
  • De Feyter S; Department of Chemistry , Lancaster University , Lancaster LA1 4YB , United Kingdom.
ACS Nano ; 13(5): 5559-5571, 2019 May 28.
Article en En | MEDLINE | ID: mdl-31013051
A convenient covalent functionalization approach and nanopatterning method of graphite and graphene is developed. In contrast to expectations, electrochemically activated dediazotization of a mixture of two aryl diazonium compounds in aqueous media leads to a spatially inhomogeneous functionalization of graphitic surfaces, creating covalently modified surfaces with quasi-uniform spaced islands of pristine graphite or graphene, coined nanocorrals. Cyclic voltammetry and chronoamperometry approaches are compared. The average diameter (45-130 nm) and surface density (20-125 corrals/µm2) of these nanocorrals are tunable. These chemically modified nanostructured graphitic (CMNG) surfaces are characterized by atomic force microscopy, scanning tunneling microscopy, Raman spectroscopy and microscopy, and X-ray photoelectron spectroscopy. Mechanisms leading to the formation of these CMNG surfaces are discussed. The potential of these surfaces to investigate supramolecular self-assembly and on-surface reactions under nanoconfinement conditions is demonstrated.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Nano Año: 2019 Tipo del documento: Article País de afiliación: Bélgica Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Nano Año: 2019 Tipo del documento: Article País de afiliación: Bélgica Pais de publicación: Estados Unidos