Facile synthesis of highly favorable graphene oxide: Effect of oxidation degree on the structural, morphological, thermal and electrochemical properties

被引：45

作者：

Hanifah, Mohamad Fahrul Radzi ^{[1
]}

Jaafar, Juhana ^{[1
]}

Othman, M. H. D. ^{[1
]}

Ismail, A. F. ^{[1
]}

Rahman, M. A. ^{[1
]}

Yusof, N. ^{[1
]}

Salleh, W. N. W. ^{[1
]}

Aziz, F. ^{[1
]}

机构：

[1] Univ Teknol Malaysia, Fac Engn, Sch Chem & Energy Engn, Adv Membrane Technol Res Ctr AMTEC, Utm Slcudai 81310, Johor, Malaysia

来源：

MATERIALIA | 2019年 / 6卷

关键词：

Graphene oxide (GO); Modified hummers' method; Oxidation reaction; Characterization; Surface morphology; Electrochemical property; GRAPHITE OXIDE; HUMMERS METHOD; REDUCTION; GREEN; NANOSHEETS;

D O I：

10.1016/j.mtla.2019.100344

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An efficient and facile production of highly favorable graphene oxide (GO) via modified Hummers' method at different oxidation degrees was successfully demonstrated. The formation of oxygen containing functional groups and their effects on GO structural properties were analyzed by UV-visible spectrophotometry (UV-vis), Fourier transform infrared spectroscopy (FTIR), x-ray diffraction (XRD) and Raman spectrophotometer. The presence of hydroxyl (-OH), carboxyl (-COOH), epoxy (C-O-C) and carbonyl (C=O) groups in GO and their intermolecular interaction were analyzed by FTIR. XRD pattern of GO showed the dominant peak at 10.8 degrees with interlayer spacing (0.82 nm) larger than pristine graphite (0.34 nm) owing to the addition of oxygen with functional groups. High-resolution transmission electron microscopy (HRTEM) analysis showed highly transparent layers of GO-9 with distinct flake like shape. The electrochemical property of GO was observed to increase with lower amount of oxygen containing functional groups. These synthesized GO with valuable properties have high potential to serve as a precursor for the production of various graphene-based materials application.

引用

页数：12

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