Influence of self-assembled perfluoroalkylsilane monolayers on wettability and tribological properties of graphene derivatives films

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science Pub Date : 2025-05-11 DOI:10.1016/j.apsusc.2025.163466

M. Cichomski , K. Spilarewicz , E. Borkowska , A. Kisielewska , R. Stanecka-Badura , M. Dudek , I. Piwoński

引用次数: 0

Abstract

The effect of perfluoroalkylsilane modification of graphene derivatives on tribological properties at the micro and nanoscale was investigated. Graphene oxide (GO) and reduced graphene oxide (RGO) deposited on silicon substrate were modified with 1H,1H,2H,2H-perfluorodecyltrichlorosilane (FDTS) in the vapor phase. SEM imaging revealed a domain-like structure of silane layers. Raman and FTIR spectroscopies showed more oxygen functional groups localized on GO than on the RGO surface, which enhance the effectiveness of FDTS formation and their self-organization. Thus, contact angle measurements revealed that upon modification, GO exhibits higher than RGO hydrophobicity. Frictional tests performed with the use of a ball on flat apparatus and atomic force microscopy revealed that modified GO and RGO layers exhibit low friction and high wear resistance.

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自组装全氟烷基硅烷单层膜对石墨烯衍生物薄膜润湿性和摩擦学性能的影响

研究了石墨烯衍生物的全氟烷基硅烷改性对其微纳米级摩擦学性能的影响。用1H、1H、2H、2H全氟癸基三氯硅烷（FDTS）气相改性沉积在硅衬底上的氧化石墨烯（GO）和还原氧化石墨烯（RGO）。扫描电镜成像显示硅烷层呈畴状结构。Raman和FTIR光谱显示，氧化石墨烯表面的氧官能团比氧化石墨烯表面的多，这增强了FDTS的形成效率和自组织能力。因此，接触角测量表明，改性后的氧化石墨烯表现出比还原氧化石墨烯更高的疏水性。使用平球装置和原子力显微镜进行的摩擦测试表明，改性氧化石墨烯和还原氧化石墨烯层具有低摩擦和高耐磨性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Surface Science 工程技术-材料科学：膜

CiteScore

12.50

自引率

7.50%

发文量

3393

审稿时长

67 days

期刊介绍： Applied Surface Science covers topics contributing to a better understanding of surfaces, interfaces, nanostructures and their applications. The journal is concerned with scientific research on the atomic and molecular level of material properties determined with specific surface analytical techniques and/or computational methods, as well as the processing of such structures.