title: Area-selective passivation of sp2carbon surfaces by supramolecular self-assembly.
abstract: Altering the chemical reactivity of graphene can offer new opportunities for various applications. Here, we report that monolayers of densely packed n-pentacontane significantly reduce the covalent grafting of aryl radicals to graphitic surfaces. The effect is highly local in nature and on fully covered substrates grafting can occur only at monolayer imperfections such as interdomain borders and vacancy defects. Grafting partially covered substrates primarily results in the covalent modification of uncoated areas.
authors.affiliation: Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven-University of Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium. oleksandr.ivasenko@kuleuven.be steven.defeyter@kuleuven.be stmerten@gmail.com.
authors.forename: Zhi
authors.initials: Z
authors.lastname: Li
authors.forename: Hans
authors.initials: H
authors.lastname: Van Gorp
authors.forename: Peter
authors.initials: P
authors.lastname: Walke
authors.forename: Thanh Hai
authors.initials: TH
authors.lastname: Phan
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Fujita
authors.forename: John
authors.initials: J
authors.lastname: Greenwood
authors.forename: Oleksandr
authors.initials: O
authors.lastname: Ivasenko
authors.forename: Kazukuni
authors.initials: K
authors.lastname: Tahara
authors.forename: Yoshito
authors.initials: Y
authors.lastname: Tobe
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Uji-I
authors.forename: Stijn F L
authors.initials: SFL
authors.lastname: Mertens
authors.forename: Steven
authors.initials: S
authors.lastname: De Feyter