N/P-Codoped Thermally Reduced Graphene for High-Performance Supercapacitor Applications

被引：132

作者：

Wang, Chunlei ^{[1
]}

Zhou, Ying ^{[1
]}

Sun, Li ^{[1
]}

Zhao, Qiang ^{[1
]}

Zhang, Xu ^{[1
]}

Wan, Peng ^{[1
]}

Qiu, Jieshan ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Carbon Res Lab,Liaoning Key Lab Energy Mat & Chem, Dalian 116024, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2013年 / 117卷 / 29期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

NITROGEN-DOPED GRAPHENE; GRAPHITE OXIDE; ELECTROCHEMICAL CHARACTERIZATION; CARBON NANOTUBES; OXYGEN; ELECTRODES; TEMPERATURE; CAPACITANCE; COMPOSITES; ONIONS;

D O I：

10.1021/jp4015959

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：

Graphene relative materials for supercapacitors have incurred intense interest due to their high electrical and thermal conductivity, large surface area, and good chemical stability. N/P-codoped thermally reduced graphene oxide (N/P-TRGO) with high density of surface groups was synthesized by a simple way through thermal annealing of thermally exfoliated graphene oxide in the presence of (NH4)(3)PO4. The extreme low C/O atom ratio of 5.9 was reached after thermal treatment at high temperature of 800 degrees C for 2 h. N/P-TRGO exhibits high specific capacitance, high rate capability, and excellent cycle performance. The effect of codoping on the surface, structural, and electrochemical capacitive properties was investigated and elucidated in detail. These results demonstrated that N, P codoping is a convenient and efficient way for the improving the supercapacitive performance of thermally reduced graphene oxides.

引用

页码：14912 / 14919

页数：8

共 51 条

[1] Chemical and electrochemical characterization of porous carbon materials [J].