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
Collection year 2015
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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