Modulation of oxygen functional groups and their influence on the supercapacitor performance of reduced graphene oxide
作者： Zegao Wang , Yuqing Wang , Xin Hao , Jingbo Liu , Yuanfu Chen
DOI: 10.1039/D0NJ04072J
关键词:
摘要: The capacitive properties of graphene-based supercapacitor electrode materials are closely related to their geometric structure and chemical nature. Their has been well studied, however, the physical mechanisms giving rise conductivity capacitance oxygen functional group configurations still unclear. In this study, using water or ethanol as solvent, reduced graphene oxide with a similar total content but different function groups was synthesized, which provided platform reveal mechanism. results show that doubly bound aromatic carbon make greater contribution conductivity, while singly aliphatic supercapacitance. specific solvent can reach 182 F g−1, is much higher than value for (136 g−1). behavior, including electric double layer behavior pseudocapacitive were studied systematically. This study demonstrates through controlling groups, performance based supercapacitors be further improved.
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