TY - JOUR
T1 - Hierarchical nitrogen-doped porous carbon with high surface area derived from endothelium corneum gigeriae galli for high-performance supercapacitor
AU - Hong, Xiaoting
AU - Hui, K. S.
AU - Zeng, Zhi
AU - Hui, K. N.
AU - Zhang, Luojiang
AU - Mo, Mingyue
AU - Li, Min
PY - 2014/6/1
Y1 - 2014/6/1
N2 - Endothelium corneum gigeriae galli derived 3D hierarchical nitrogen-doped porous carbon was for the first time prepared by preliminary carbonization at 450 °C and final KOH activation at high temperatures. The surface and structural properties of the as-synthesized samples are analyzed with Brunauer-Emmett-Teller surface analyzer apparatus, X-Ray Diffractometer, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectrometer. The electrochemical performances are analyzed by cyclic voltammetry, galvanostatic charge/discharge cycling and electrochemical impedance spectroscopy. The obtained results show that the sample carbonized at 900 °C possesses the SSA of 2149.9 m2 g-1, average micropore diameter of 1.78 nm, and exhibits the highest initial specific capacitance of 198.0 F g-1 at current density of 1 A g-1 in 6 M KOH solution. It retains good specific capacitance retention of 91.6% after 3000 charge/discharge cycles at current density of 2 A g-1.
AB - Endothelium corneum gigeriae galli derived 3D hierarchical nitrogen-doped porous carbon was for the first time prepared by preliminary carbonization at 450 °C and final KOH activation at high temperatures. The surface and structural properties of the as-synthesized samples are analyzed with Brunauer-Emmett-Teller surface analyzer apparatus, X-Ray Diffractometer, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectrometer. The electrochemical performances are analyzed by cyclic voltammetry, galvanostatic charge/discharge cycling and electrochemical impedance spectroscopy. The obtained results show that the sample carbonized at 900 °C possesses the SSA of 2149.9 m2 g-1, average micropore diameter of 1.78 nm, and exhibits the highest initial specific capacitance of 198.0 F g-1 at current density of 1 A g-1 in 6 M KOH solution. It retains good specific capacitance retention of 91.6% after 3000 charge/discharge cycles at current density of 2 A g-1.
KW - Endothelium corneum gigeriae galli
KW - High specific surface area
KW - Nitrogen-doped porous carbon
KW - Supercapacitor
UR - http://www.scopus.com/inward/record.url?scp=84898066140&partnerID=8YFLogxK
U2 - 10.1016/j.electacta.2014.03.015
DO - 10.1016/j.electacta.2014.03.015
M3 - Article
AN - SCOPUS:84898066140
VL - 130
SP - 464
EP - 469
JO - Electrochimica Acta
JF - Electrochimica Acta
SN - 0013-4686
ER -