Single layer graphene induces load-bearing molecular layering at the hexadecane-steel interface

The influence of a single layer graphene on the interface between a polished steel surface and the model lubricant hexadecane is explored by high-resolution force microscopy. Nanometer-scale friction is reduced by a factor of three on graphene compared to the steel substrate, with an ordered layer o...

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Bibliographic Details
Published in:Nanotechnology 2019-11, Vol.30 (46), p.46-46LT01
Main Authors: Krämer, G, Kim, C, Kim, K-S, Bennewitz, R
Format: Article
Language:English
Subjects:
atomic force microscopy
graphene
molecular layering
nanotribology
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Summary:The influence of a single layer graphene on the interface between a polished steel surface and the model lubricant hexadecane is explored by high-resolution force microscopy. Nanometer-scale friction is reduced by a factor of three on graphene compared to the steel substrate, with an ordered layer of hexadecane adsorbed on the graphene. Graphene furthermore induces a molecular ordering in the confined lubricant with an average range of 4-5 layers and with a strongly increased load-bearing capacity compared to the lubricant on the bare steel substrate.
ISSN:0957-4484
1361-6528
DOI:10.1088/1361-6528/ab3cab