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Nanomaterials 2017, 7(2), 25;

One-Step Reduction and Surface Modification of Graphene Oxide by 3-Hydroxy-2-Naphthoic Acid Hydrazide and Its Polypropylene Nanocomposites

School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
Key Laboratory for Advanced Materials Processing Technology, Ministry of Education, Beijing 100084, China
National Center for Electron Microscopy Beijing, Beijing 100084, China
Author to whom correspondence should be addressed.
Academic Editor: Thomas Nann
Received: 30 November 2016 / Revised: 3 January 2017 / Accepted: 17 January 2017 / Published: 24 January 2017
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3-Hydroxy-2-naphthoic acid hydrazide (HNH), a new reductant and modifier, was applied to reduce and modify graphene oxide (GO) in a one-step process. The obtained HNH reduced graphene oxide (HNH-rGO) was characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), Raman spectroscopy, X-ray photoelectron spectroscopic (XPS) and Fourier transform infrared spectra (FTIR). The results demonstrated that GO was successfully reduced to graphene and the surface of HNH-rGO was grafted with HNH. The interlayer space was increased from 0.751 nm to 1.921 nm, and its agglomeration was much more attenuated compared with GO. HNH-rGO/polypropylene and graphene/polypropylene composites were synthesized through melt-blending method. The viscosity was enhanced with increased addition of graphene and surface modified graphene demonstrated stronger rheological behavior improving effect than the untreated graphene. View Full-Text
Keywords: graphene; reduction; surface modification; nanocomposites graphene; reduction; surface modification; nanocomposites

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Xu, X.-N.; Guan, X.-N.; Zhou, H.-H.; Zhu, Y.-F. One-Step Reduction and Surface Modification of Graphene Oxide by 3-Hydroxy-2-Naphthoic Acid Hydrazide and Its Polypropylene Nanocomposites. Nanomaterials 2017, 7, 25.

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