Carbon Nanospheres Derived from Lablab Purpureus for High Performance Supercapacitor Electrodes: a Green Approach
Carbon nanospheres derived from a natural source using a green approach were reported. Lablab purpureus seeds were pyrolyzed at different temperatures to produce carbon nanospheres for supercapacitor electrode materials. The synthesized carbon nanospheres were analyzed using SEM, TEM, FTIR, TGA, Ram...
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Royal Society of Chemistry
2017
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| Online Access: | http://umpir.ump.edu.my/id/eprint/20178/ http://umpir.ump.edu.my/id/eprint/20178/ http://umpir.ump.edu.my/id/eprint/20178/ http://umpir.ump.edu.my/id/eprint/20178/1/fist-2017-goma-Carbon%20nanospheres%20derived1.pdf |
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ump-201782018-01-29T08:00:36Z http://umpir.ump.edu.my/id/eprint/20178/ Carbon Nanospheres Derived from Lablab Purpureus for High Performance Supercapacitor Electrodes: a Green Approach Ali, Gomaa A. M. Divyashree, A. Supriya, S. Chong, Kwok Feng Ethiraj, Anita S. Reddy, M. V. Algarni, H. Hegde, Gurumurthy Q Science (General) QC Physics QD Chemistry Carbon nanospheres derived from a natural source using a green approach were reported. Lablab purpureus seeds were pyrolyzed at different temperatures to produce carbon nanospheres for supercapacitor electrode materials. The synthesized carbon nanospheres were analyzed using SEM, TEM, FTIR, TGA, Raman spectroscopy, BET and XRD. They were later fabricated into electrodes for cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectroscopy testing. The specific capacitances were found to be 300, 265 and 175 F g−1 in 5 M KOH electrolyte for carbon nanospheres synthesized at 800, 700 and 500 °C, respectively. These are on a par with those of prior electrodes made of biologically derived carbon nanospheres but the cycle lives were remarkably higher than those of any previous efforts. The electrodes showed 94% capacitance retention even after 5200 charge/discharge cycles entailing excellent recycling durability. In addition, the practical symmetrical supercapacitor showed good electrochemical behaviour under a potential window up to 1.7 V. This brings us one step closer to fabricating a commercial green electrode which exhibits high performance for supercapacitors. This is also a waste to wealth approach based carbon material for cost effective supercapacitors with high performance for power storage devices. Royal Society of Chemistry 2017-09-13 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/20178/1/fist-2017-goma-Carbon%20nanospheres%20derived1.pdf Ali, Gomaa A. M. and Divyashree, A. and Supriya, S. and Chong, Kwok Feng and Ethiraj, Anita S. and Reddy, M. V. and Algarni, H. and Hegde, Gurumurthy (2017) Carbon Nanospheres Derived from Lablab Purpureus for High Performance Supercapacitor Electrodes: a Green Approach. Dalton Transactions, 46. pp. 14034-14044. ISSN 1477-9226 https://doi.org/10.1039/C7DT02392H doi: 10.1039/C7DT02392H |
| repository_type |
Digital Repository |
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Local University |
| institution |
Universiti Malaysia Pahang |
| building |
UMP Institutional Repository |
| collection |
Online Access |
| language |
English |
| topic |
Q Science (General) QC Physics QD Chemistry |
| spellingShingle |
Q Science (General) QC Physics QD Chemistry Ali, Gomaa A. M. Divyashree, A. Supriya, S. Chong, Kwok Feng Ethiraj, Anita S. Reddy, M. V. Algarni, H. Hegde, Gurumurthy Carbon Nanospheres Derived from Lablab Purpureus for High Performance Supercapacitor Electrodes: a Green Approach |
| description |
Carbon nanospheres derived from a natural source using a green approach were reported. Lablab purpureus seeds were pyrolyzed at different temperatures to produce carbon nanospheres for supercapacitor electrode materials. The synthesized carbon nanospheres were analyzed using SEM, TEM, FTIR, TGA, Raman spectroscopy, BET and XRD. They were later fabricated into electrodes for cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectroscopy testing. The specific capacitances were found to be 300, 265 and 175 F g−1 in 5 M KOH electrolyte for carbon nanospheres synthesized at 800, 700 and 500 °C, respectively. These are on a par with those of prior electrodes made of biologically derived carbon nanospheres but the cycle lives were remarkably higher than those of any previous efforts. The electrodes showed 94% capacitance retention even after 5200 charge/discharge cycles entailing excellent recycling durability. In addition, the practical symmetrical supercapacitor showed good electrochemical behaviour under a potential window up to 1.7 V. This brings us one step closer to fabricating a commercial green electrode which exhibits high performance for supercapacitors. This is also a waste to wealth approach based carbon material for cost effective supercapacitors with high performance for power storage devices. |
| format |
Article |
| author |
Ali, Gomaa A. M. Divyashree, A. Supriya, S. Chong, Kwok Feng Ethiraj, Anita S. Reddy, M. V. Algarni, H. Hegde, Gurumurthy |
| author_facet |
Ali, Gomaa A. M. Divyashree, A. Supriya, S. Chong, Kwok Feng Ethiraj, Anita S. Reddy, M. V. Algarni, H. Hegde, Gurumurthy |
| author_sort |
Ali, Gomaa A. M. |
| title |
Carbon Nanospheres Derived from Lablab Purpureus for High Performance Supercapacitor Electrodes: a Green Approach |
| title_short |
Carbon Nanospheres Derived from Lablab Purpureus for High Performance Supercapacitor Electrodes: a Green Approach |
| title_full |
Carbon Nanospheres Derived from Lablab Purpureus for High Performance Supercapacitor Electrodes: a Green Approach |
| title_fullStr |
Carbon Nanospheres Derived from Lablab Purpureus for High Performance Supercapacitor Electrodes: a Green Approach |
| title_full_unstemmed |
Carbon Nanospheres Derived from Lablab Purpureus for High Performance Supercapacitor Electrodes: a Green Approach |
| title_sort |
carbon nanospheres derived from lablab purpureus for high performance supercapacitor electrodes: a green approach |
| publisher |
Royal Society of Chemistry |
| publishDate |
2017 |
| url |
http://umpir.ump.edu.my/id/eprint/20178/ http://umpir.ump.edu.my/id/eprint/20178/ http://umpir.ump.edu.my/id/eprint/20178/ http://umpir.ump.edu.my/id/eprint/20178/1/fist-2017-goma-Carbon%20nanospheres%20derived1.pdf |
| first_indexed |
2023-09-18T22:28:56Z |
| last_indexed |
2023-09-18T22:28:56Z |
| _version_ |
1777416154516553728 |