Easy approach to synthesize N/P/K co-doped porous carbon microfibers from cane molasses as a high performance supercapacitor electrode material

Kurniawan, Alfin, Ong, L. K., Kurniawan, Fredi, Lin, C. X., Soetaredjo, Felycia E., Zhao, X. S. and Ismadji, Suryadi (2014) Easy approach to synthesize N/P/K co-doped porous carbon microfibers from cane molasses as a high performance supercapacitor electrode material. RSC Advances, 4 66: 34739-34750. doi:10.1039/c4ra05243a


Author Kurniawan, Alfin
Ong, L. K.
Kurniawan, Fredi
Lin, C. X.
Soetaredjo, Felycia E.
Zhao, X. S.
Ismadji, Suryadi
Title Easy approach to synthesize N/P/K co-doped porous carbon microfibers from cane molasses as a high performance supercapacitor electrode material
Journal name RSC Advances   Check publisher's open access policy
ISSN 2046-2069
Publication date 2014-01-01
Year available 2014
Sub-type Article (original research)
DOI 10.1039/c4ra05243a
Open Access Status Not Open Access
Volume 4
Issue 66
Start page 34739
End page 34750
Total pages 12
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Language eng
Abstract In this study, we demonstrate a simple and low cost method to synthesize N/P/K co-doped porous carbon microfibers (CMFs) from a sugar-rich byproduct (cane molasses) as the precursor material. A two-step method for the synthesis of N/P/K co-doped porous CMFs involving electrospinning of precursor material followed by simple carbonization at various temperatures (773.15-1173.15 K) was successfully applied. The N/P/K co-doped porous CMFs exhibited high specific surface area (∼580 m2 g-1) and hierarchical porous structure. The potential application of N/P/K co-doped porous CMFs as supercapacitor electrodes was investigated in a two-electrode configuration employing aqueous K2SO4 solution and ionic liquids/acetonitrile (ILs/ACN) mixtures as the electrolytes. A series of electrochemical measurements include cyclic voltammetry, galvanostatic charge-discharge and cycling durability all confirmed that the CMF-1073.15 supercapacitor exhibited good electrochemical performance with a specific capacitance of 171.8 F g-1 at a current load of 1 A g-1 measured in 1.5 M tetraethylammonium tetrafluoroborate (TEABF4)/ACN electrolyte, which can be charged and discharged up to a cell potential of 3.0 V. The specific energy density and power density of 53.7 W h kg-1 and 0.84 kW kg-1 were achieved. Furthermore, the CMF-1073.15 supercapacitor showed excellent cycling performance with capacitance retention of nearly 91% after 2500 charge-discharge cycles, characterizing its electrochemical robustness and stable capacitive performance.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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