Switchable hydrophobicity/hydrophilicity of a HOPG surface - Comment on the paper by Y. Wei and C.Q. Jia, Carbon, 87 (2015) 10-17

J. Włoch; A.P. Terzyk; P. Kowalczyk; E.D. Korczeniewski; Katsumi Kaneko

doi:10.1016/j.carbon.2017.01.048

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Switchable hydrophobicity/hydrophilicity of a HOPG surface - Comment on the paper by Y. Wei and C.Q. Jia, Carbon, 87 (2015) 10-17

Journal article

Peer reviewed

Switchable hydrophobicity/hydrophilicity of a HOPG surface - Comment on the paper by Y. Wei and C.Q. Jia, Carbon, 87 (2015) 10-17

J. Włoch, A.P. Terzyk, P. Kowalczyk, E.D. Korczeniewski and Katsumi Kaneko

Carbon, Vol.115, pp.571-573

2017

DOI: https://doi.org/10.1016/j.carbon.2017.01.048

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Abstract

Based on simulation data we show that the edge graphite atoms of a HOPG surface have remarkable influence on water contact angle values. Compared to graphite basal plane, a water droplet sitting on the edge atoms experiences two effects on wettability, smaller density of surface carbon atoms and the appearance of the Wenzel states. The differences between contact angles recorded for samples containing different amounts of the edge atoms are large, even after carbon surface oxidation. Thus, we report anisotropic wettability of the graphite surface. Moreover, changing the content of edge atoms in the substrate, one can induce switchable hydrophilic/hydrophobic properties of graphite.

Details

Title: Switchable hydrophobicity/hydrophilicity of a HOPG surface - Comment on the paper by Y. Wei and C.Q. Jia, Carbon, 87 (2015) 10-17
Authors/Creators: J. Włoch (Author/Creator)
A.P. Terzyk (Author/Creator)
P. Kowalczyk (Author/Creator)
E.D. Korczeniewski (Author/Creator)
Katsumi Kaneko (Author/Creator)
Publication Details: Carbon, Vol.115, pp.571-573
Publisher: Elsevier Limited
Identifiers: 991005541811607891
Copyright: © 2017 Elsevier Ltd.
Murdoch Affiliation: School of Engineering and Information Technology
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 2 Chemistry; 2.160 Microfluidic Devices & Superhydrophobicity; 2.160.365 Superhydrophobic
Web Of Science research areas: Chemistry, Physical; Materials Science, Multidisciplinary
ESI research areas: Chemistry