Issue 32, 2015

Synthesis, dispersion and lubrication potential of basal plane functionalized alkylated graphene nanosheets

Abstract

A single step facile approach for grafting of long alkyl chains in the basal plane of graphene oxide and simultaneous reduction of oxygen functionalities to restore the graphitic characteristics, is reported. Chemical and structural features of the synthesized dual-layer alkylated graphene are elucidated by infrared, 13C solid state nuclear magnetic resonance, X-ray diffraction, and high-resolution transmission electron microscopy analyses. The van der Waals interaction between the octadecyl chains grafted on graphene and the alkyl chains of lube oils provided long-term dispersion stability to the alkylated graphene. The 0.02 mg mL−1 alkylated graphene as an optimized concentration in the lube oil, decreased both friction and wear significantly under the sliding contacts between steel tribo-pairs. Micro-Raman results demonstrate the deposition of graphene nanosheets on the tribo-interfaces under the sheared contact, and reduced the friction and protects the surfaces against undesirable wear.

Graphical abstract: Synthesis, dispersion and lubrication potential of basal plane functionalized alkylated graphene nanosheets

Article information

Article type
Paper
Submitted
24 Dec 2014
Accepted
04 Mar 2015
First published
04 Mar 2015

RSC Adv., 2015,5, 25565-25571

Synthesis, dispersion and lubrication potential of basal plane functionalized alkylated graphene nanosheets

H. P. Mungse, N. Kumar and O. P. Khatri, RSC Adv., 2015, 5, 25565 DOI: 10.1039/C4RA16975A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements