Microwave assisted exfoliation and reduction of graphite oxide for ultracapacitors

被引：789
|
作者：
Zhu, Yanwu
Murali, Shanthi
Stoller, Meryl D.
Velamakanni, Aruna
Piner, Richard D.
Ruoff, Rodney S. [1 ]
机构：
[1] Univ Texas Austin, Dept Mech Engn, Austin, TX 78712 USA
来源：
CARBON | 2010年 / 48卷 / 07期
关键词：
GRAPHENE OXIDE; IRRADIATION; NANOSHEETS; COMPOSITE; SHEETS;
D O I：
10.1016/j.carbon.2010.02.001
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：
We report a simple yet versatile method to simultaneously achieve the exfoliation and reduction of graphite oxide. By treating graphite oxide powders in a commercial microwave oven, reduced graphite oxide materials could be readily obtained within 1 min. Extensive characterizations showed that the as-prepared materials consisted of crumpled, few-layer thick and electronically conductive graphitic sheets. Using the microwave exfoliated graphite oxide as electrode material in an ultracapacitor cell, specific capacitance values as high as 191 F/g have been demonstrated with KOH electrolyte. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2118 / 2122
页数：5
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