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Three-Dimensional Hierarchically Ordered Porous Carbons with Partially Graphitic Nanostructures for Electrochemical Capacitive Energy Storage

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons32770

Huang,  Chun-Hsien
Department of Biomedical Engineering and Environmental Sciences, National Tsing-Hua University;
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons22292

Zhang,  Qiang
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Department of Chemical Engineering, Tsinghua University;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons32682

Chen,  Chenmeng
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons22148

Su,  Dang Sheng
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Shenyang National Laboratory for Materials Science Institute of Metal Research, Chinese Academy of Science;

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Citation

Huang, C.-H., Zhang, Q., Chou, T.-C., Chen, C., Su, D. S., & Doong, R.-A. (2012). Three-Dimensional Hierarchically Ordered Porous Carbons with Partially Graphitic Nanostructures for Electrochemical Capacitive Energy Storage. ChemSusChem: chemistry & sustainability, energy & materials, 5(3), 563-571. doi:10.1002/cssc.201100618.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000F-83FD-9
Abstract
Three-dimensional, hierarchically ordered, porous carbon (HOPC) with designed porous textures, serving as an ion-buffering reservoir, an ion-transport channel, and a charge-storage material, is expected to be advanced an energy material for high-rate supercapacitors. Herein, HOPC without/with partially graphitic nanostructures have been directly synthesized by means of a simple one-pot synthesis procedure. The designed porous textures of the 3D HOPC materials are composed of highly ordered, fcc macroporous (300 nm), interconnected porous structures, including macroporous windows (170 nm), hexagonally ordered mesopores (5.0 nm), and useful micropores (1.2 nm). 3D HOPC-g-1000 (g=graphitic, 1000=pyrolysis temperature of 1000 °C) with partially graphitic nanostructures has a low specific surface area (296 m2 g−1) and a low gravimetric specific capacitance (73.4 F g−1 at 3 mV s−1), but improved electrical conductivity, better rate performance, higher electrolyte accessibility (24.8 μF cm−2 at 3 mV s−1), faster frequency response (≈1 Hz), and excellent cycling performance (>5400 cycles). The specific capacitance per surface area is higher than that of conventional porous carbons, carbon nanotubes, and modified graphene (10–19 μF cm−2).