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

Kurniawan, Alfin and Ong, L.K. and Kurniawan, Fredi and Lin, C.X. and Soetaredjo, Felycia E. and 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. pp. 34739-34750. ISSN 2046–2069

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Official URL: http://pubs.rsc.org/en/content/articlelanding/2014...

Abstract

In this study, we demonstrate a simple and low cost method to synthesize N/P/K co-doped porous carbon microfi bers (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 successfullyapplied. The N/P/K co-doped porous CMFs exhibited high specifi c surface area (580 m2 g1) 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 K2 SO4 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 g1 at a current load of 1 A g1 measured in 1.5 M tetraethylammonium tetra fluoroborate (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 kg1 and 0.84 kW kg1 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.

Item Type: Article
Subjects: Engineering > Chemical Engineering
Divisions: Faculty of Engineering > Chemical Engineering Study Program
Depositing User: Felycia Edi Soetaredjo
Date Deposited: 17 Jul 2017 07:45
Last Modified: 22 May 2018 09:31
URI: http://repository.wima.ac.id/id/eprint/11030

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