Area-selective passivation of sp2 carbon surfaces by supramolecular self-assembly

Li, Z. and Van Gorp, H. and Walke, P. and Phan, T.H. and Fujita, Y. and Greenwood, J. and Ivasenko, O. and Tahara, K. and Tobe, Y. and Uji-I, H. and Mertens, S.F.L. and De Feyter, S. (2017) Area-selective passivation of sp2 carbon surfaces by supramolecular self-assembly. Nanoscale, 9 (16). pp. 5188-5193. ISSN 2040-3364

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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.

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18 Apr 2019 09:00
Last Modified:
16 Sep 2023 01:55