Electrochemical Synthesis of Multilayer Graphene Oxide by Anodic Oxidation of Disperse Graphite

被引：20
|
作者：
Yakovlev, A., V [1 ]
Yakovleva, E., V [1 ]
Tseluikin, V. N. [1 ]
Krasnov, V. V. [1 ]
Mostovoy, A. S. [1 ]
Rakhmetulina, L. A. [1 ]
Frolov, I. N. [1 ]
机构：
[1] Yuri Gagarin State Tech Univ Saratov, Saratov 410054, Russia
来源：
RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2019年 / 55卷 / 12期
基金：
俄罗斯基础研究基金会;
关键词：
graphite; sulfuric acid; electrochemical synthesis; oxidized graphite; multilayer graphene oxide; CHEMICAL-VAPOR-DEPOSITION; COLLOIDAL GRAPHENE; EXFOLIATION; REDUCTION; GROWTH;
D O I：
10.1134/S102319351912019X
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The electrochemical method for synthesizing multilayer graphene oxide by the anodic oxidation of disperse graphite in sulfuric acid is proposed. The possibility of sequential dispersion of graphite in the course of its electrochemical oxidation, hydrolysis, and thermolysis is demonstrated. It is shown that the resulting nanostructured materials tend to form agglomerates in aqueous dispersions. When treated with supersonic, the size of oxidized graphite particles decreases noticeably and they form multilayer graphene oxide. Thermolysis (250 degrees C) leads to a considerable expansion of oxidized graphite particles (the inflation coefficient 1490 cm(3) g(-1)) and reduction of oxygen-containing functional groups. The structure of thus obtained material includes polygraphene sheets with the thickness of 0.01-0.1 mu m and contains pores of 1-10 mu m.
引用
收藏
页码：1196 / 1202
页数：7
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