DataVXACS NanoPaper
journal article·2018-11-27Open access

Self-Assembled Monolayers as Templates for Linearly Nanopatterned Covalent Chemical Functionalization of Graphite and Graphene Surfaces

Kazukuni Tahara, Toru Ishikawa, Brandon E. Hirsch, Yuki Kubo, Anton Brown, Samuel Eyley, Lakshya Daukiya, Wim Thielemans, Zhi Li, Peter Walke, Shingo Hirose, Shingo Hashimoto, Steven De Feyter, Yoshito Tobe

ACS Nano· Volume 12· Issue 11
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Source abstract

Abstract

An approach for nanoscale covalent functionalization of graphite surfaces employing self-assembled molecular monolayers of n-alkanes as templating masks is presented. Linearly aligned aryl groups with a lateral periodicity of 5 or 7 nm are demonstrated utilizing molecular templates of different lengths. The key feature of this approach is the use of a phase separated solution double layer consisting of a thin organic layer containing template molecules topped by an aqueous layer containing aryldiazonium molecules capable of electrochemical reduction to generate aryl radicals which bring about surface grafting. Upon sweeping of the potential, lateral displacement dynamics at the n-alkane terminal edges acts in conjunction with electrochemical diffusion to result in templated covalent bond formation in a linear fashion. This protocol was demonstrated to be applicable to linear grafting of graphene. The present processing described herein is useful for the realization of rationally designed nanoscale materials.
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Research context

Nanomaterials

OpenAlex topics: Molecular Junctions and Nanostructures · Graphene research and applications · Surface Chemistry and Catalysis

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Division of Frontier Materials Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan

Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa 214-8571, Japan

PRESTO, Japan Science and Technology Agency, 4-1-8, Honcho, Kawaguchi, Saitama 332-0012, Japan

Division of Molecular Imaging and Photonics, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium

Renewable Materials and Nanotechnology Group, Department of Chemical Engineering, KU Leuven, Campus Kortrijk, Etienne Sabbelaan 53, 8500 Kortrijk, Belgium

The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan

Funding

KU Leuven · Belgian American Educational Foundation · Precursory Research for Embryonic Science and Technology · Federaal Wetenschapsbeleid · Fonds Wetenschappelijk Onderzoek · Japan Society for the Promotion of Science · FP7 Ideas: European Research Council · Provincie West-Vlaanderen

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