Ultrasonication-assisted ultrafast reduction of graphene oxide by zinc powder at room temperature
Ultrasonication-assisted ultrafast reduction of graphene oxide by zinc powder at room temperature
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DOI：
10.1016/j.carbon.2011.08.019
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发表时间：
2011-12-01
期刊：
影响因子：
10.9
通讯作者：
Ouyang, Jianyong
中科院分区：
文献类型：
--
作者：
Mei, Xiaoguang;Ouyang, Jianyong
报道了一种绿色方法，该方法在室温下用锌粉有效且快速地将氧化石墨烯还原为石墨烯。通过在超声处理下将氧化石墨烯和锌粉在溶液中混合来进行还原。还原在1分钟内完成。Zn粉的重量应至少为氧化石墨烯重量的两倍以完成还原。通过FTIR、UV-Vis吸收光谱和拉曼光谱证实了氧化石墨烯的还原。通过X射线光电子能谱测定，还原后碳/氧原子比从2.58增加到33.5。还原的氧化石墨烯可以具有15，000 S/m的电导率。它还具有良好的热稳定性，在590 ℃的空气中失重。还原的氧化石墨烯可以容易地再分散到各种表面活性剂的溶液中。(C)2011爱思唯尔有限公司保留所有权利。
A green method is reported to effectively and rapidly reduce graphene oxide to graphene with zinc powder at room temperature. The reduction is carried out by mixing graphene oxide and zinc powder in solution under ultrasonication. The reduction is complete within 1 min. The weight of the Zn powder should be at least as twice as that of graphene oxide to complete the reduction. The reduction of graphene oxide is confirmed by FTIR, UV-Vis absorption spectroscopy and Raman spectroscopy. The carbon/oxygen atomic ratio has increased from 2.58 to 33.5 after the reduction as determined by X-ray photoelectron spectroscopy. The reduced graphene oxide can have a conductivity of 15,000 S/m. It also has good thermal stability with the weight loss at 590 degrees C in air. The reduced graphene oxide can be readily re-dispersed into solutions of various surfactants. (C) 2011 Elsevier Ltd. All rights reserved.