Easy approach to synthesize N/P/K co-doped porous carbon microfibers from cane molasses as a high performance supercapacitor electrode material
| Main Authors: | Kurniawan, Alfin, L.K. Ong, ., Kurniawan, Fredi, C.X. Lin, ., Soetaredjo, Felycia E., X.S. Zhao, ., Ismadji, Suryadi |
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| Format: | Article PeerReviewed Book |
| Bahasa: | eng |
| Terbitan: |
Royal Society of Chemistry
, 2014
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| Subjects: | |
| Online Access: |
http://repository.wima.ac.id/10763/1/C4RA05243A.pdf http://repository.wima.ac.id/10763/13/easy%20felicia.pdf http://repository.wima.ac.id/10763/ http://pubs.rsc.org/en/content/articlelanding/2014/ra/c4ra05243a#!divAbstract |
Daftar Isi:
- 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 codoped 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 codoped porous CMFs exhibited high specific surface area (~580 m2 g1) and hierarchical porous structure. The potential application of N/P/K codoped 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 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