Electrochemical Exfoliation of Graphite into Nitrogen-doped Graphene in Glycine Solution and its Energy Storage Properties

被引：71

作者：

Yang, Yingchang ^{[1
]}

Shi, Wei ^{[1
]}

Zhang, Renhui ^{[1
]}

Luan, Chunhong ^{[2
,3
]}

Zeng, Qing ^{[2
,3
]}

Wang, Chao ^{[2
,3
]}

Li, Simin ^{[4
]}

Huang, Zhaodong ^{[4
]}

Liao, Hanxiao ^{[4
]}

Ji, Xiaobo ^{[4
]}

机构：

[1] Tongren Univ, Coll Mat & Chem Engn, Tongren 554300, Peoples R China

[2] Univ Elect Sci & Technol China, Sch Microelect & Solid State Elect, Clean Energy Mat & Engn Ctr, Chengdu 611731, Peoples R China

[3] Univ Elect Sci & Technol China, State Key Lab Eetron Thin Film & Integrated Devic, Chengdu 611731, Peoples R China

[4] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2016年 / 204卷

关键词：

graphene sheets; nitrogen doping; electrochemical exfoliation; supercapacitor; energy storage; MESOPOROUS CARBON; CATHODIC EXFOLIATION; ELECTRODE MATERIALS; ANODE MATERIALS; HIGH-YIELD; SHEETS; EFFICIENT; INTERCALATION; NANOFIBERS; NANOSHEETS;

D O I：

10.1016/j.electacta.2016.04.063

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Electrochemically anodic exfoliation of graphite has been developed for nitrogen-doped few -layer graphene sheets (N-FLGS), demonstrating high N-doping levels of 6.05 atom%. The process for the preparation of N-FLGS is involved with the intercalation of glycine anions H2NCH2COO into the graphite layers, electro-polymerization of large electro-oxidation products H2NCH2CONHCH2, and in situ N -doping in the graphite layer. Transmission electron microscopy, X-ray photoelectron spectroscopy, Xray diffraction, and Raman spectroscopy were employed to characterize the structure and properties of the N-FLGS. The as -fabricated N-FLGS utilized as electrode materials for supercapacitor exhibit enhanced electrochemical performance, including excellent cycling stability (the capacitance ratios after 10 000 cycles is 96.1%) and a remarkable rate capability (184.5 Fg (1) at 1 A g (1), 132.7 Fg (1) at 50 A g (1)). (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：100 / 107

页数：8

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