Hydrothermal Dehydration for the "Green" Reduction of Exfoliated Graphene Oxide to Graphene and Demonstration of Tunable Optical Limiting Properties

被引：1436

作者：

Zhou, Yong ^{[1
]}

Bao, Qiaoliang ^{[1
]}

Tang, Lena Ai Ling ^{[1
]}

Zhong, Yulin ^{[1
]}

Loh, Kian Ping ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Chem, Singapore 117543, Singapore

来源：

CHEMISTRY OF MATERIALS | 2009年 / 21卷 / 13期

关键词：

COLLOIDAL CARBON SPHERES; GRAPHITE OXIDE; TRANSPARENT; FILMS; NANOCABLES; ELECTRODES; TRANSPORT; ROUTE;

D O I：

10.1021/cm9006603

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This work reports a simple, clean, and controlled hydrothermal dehydration route to convert graphene oxide (GO) to stable graphene solution, The hydrothermally treated GO was characterized using UV-visible absorption spectroscopy, atomic force microscopy, Raman spectroscopy, X-ray photoemission spectroscopy, and solid state C-13 NMR spectra. Compared to chemical reduction processes using hydrazine, the present "water-only" route has the combined advantages of removing oxygen functional groups from GO and repairing the aromatic structures. By controlling the hydrothermal temperatures, we can modify the physical properties of GO and obtain tunable optical limiting performance.

引用

页码：2950 / 2956

页数：7

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