期刊论文

Wang, Chunlei

Qiu, JS (reprint author), 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.

Zhou, Ying,Sun, Li,Zhao, Qiang,Zhang, Xu,Wan, Peng,Qiu, Jieshan

2013-07-25

JOURNAL OF PHYSICAL CHEMISTRY C

SCIE、EI、Scopus

J

117

29

14912-14919

1932-7447

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.