Preparation and Investigation of the Microtribological Properties of Graphene Oxide and Graphene Films via Electrostatic Layer-by-Layer Self-Assembly
Joint Authors
Liu, Bin
Hu, Yongshou
Ma, Haibing
Liu, Wei
Lin, Qianqian
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-08-13
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Graphene oxide (GO) films with controlled layers, deposited on single-crystal silicon substrates, were prepared by electrostatic self-assembly of negatively charged GO sheets.
Afterward, graphene films were prepared by liquid-phase reduction of as-prepared GO films using hydrazine hydrate.
The microstructures and microtribological properties of the samples were studied using X-ray photoelectron spectroscopy, Raman spectroscopy, X-ray diffraction, UV-vis absorption spectroscopy, water contact angle measurement, and atomic force microscopy.
It is found that, whether GO films or graphene films, the adhesion force and the coefficients of friction both show strong dependence on the number of self-assembled layers, which both allow a downward trend as the number of self-assembled layers increases due to the interlayer sliding and the puckering effect when the tip slipped across the top surface of the films.
Moreover, in comparison with the GO films with the same self-assembled layers, the graphene films possess lower adhesion force and coefficient of friction attributed to the difference of surface functional groups.
American Psychological Association (APA)
Hu, Yongshou& Ma, Haibing& Liu, Wei& Lin, Qianqian& Liu, Bin. 2015. Preparation and Investigation of the Microtribological Properties of Graphene Oxide and Graphene Films via Electrostatic Layer-by-Layer Self-Assembly. Journal of Nanomaterials،Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1068884
Modern Language Association (MLA)
Hu, Yongshou…[et al.]. Preparation and Investigation of the Microtribological Properties of Graphene Oxide and Graphene Films via Electrostatic Layer-by-Layer Self-Assembly. Journal of Nanomaterials No. 2015 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1068884
American Medical Association (AMA)
Hu, Yongshou& Ma, Haibing& Liu, Wei& Lin, Qianqian& Liu, Bin. Preparation and Investigation of the Microtribological Properties of Graphene Oxide and Graphene Films via Electrostatic Layer-by-Layer Self-Assembly. Journal of Nanomaterials. 2015. Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1068884
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1068884