High Surface Area Activated Carbon from Rice Husk as a High Performance Supercapacitor Electrode
In this study, we report on the application of high surface area activated carbon (AC) derived from rice husks as a supercapacitor electrode. The prepared AC was free from Brønsted or Lewis acid sites, thus making the electrical double layer capacitance as the main charge storage mechanism. Three sa...
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2016
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Online Access: | http://umpir.ump.edu.my/id/eprint/11871/1/High%20Surface%20Area%20Activated%20Carbon%20From%20Rice%20Husk%20As%20A%20High%20Performance%20Supercapacitor%20Electrode.pdf http://umpir.ump.edu.my/id/eprint/11871/ http://dx.doi.org/10.1016/j.electacta.2016.01.140 |
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my.ump.umpir.118712018-02-08T01:53:34Z http://umpir.ump.edu.my/id/eprint/11871/ High Surface Area Activated Carbon from Rice Husk as a High Performance Supercapacitor Electrode Ellie Yi, Lih Teo Lingeswarran, Muniandy Eng, Poh Ng Farook, Adam Abdul Rahman, Mohamed Rajan, Jose K. F., Chong Q Science (General) T Technology (General) In this study, we report on the application of high surface area activated carbon (AC) derived from rice husks as a supercapacitor electrode. The prepared AC was free from Brønsted or Lewis acid sites, thus making the electrical double layer capacitance as the main charge storage mechanism. Three samples of AC with different surface areas were prepared at different activation temperatures and studied electrochemically using cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance spectroscopy. All AC samples exhibited good electrochemical performance as supercapacitor electrode. The maximum specific capacitance (147 F g−1) was obtained by the AC sample (surface area of 2696 m2 g−1) which was prepared at an activation temperature of 850 °C. Detailed impedance studies revealed the low resistivity (0.23 Ω) of AC sample and the fast frequency response (0.11 s) of the supercapacitor electrode. Elsevier 2016 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/11871/1/High%20Surface%20Area%20Activated%20Carbon%20From%20Rice%20Husk%20As%20A%20High%20Performance%20Supercapacitor%20Electrode.pdf Ellie Yi, Lih Teo and Lingeswarran, Muniandy and Eng, Poh Ng and Farook, Adam and Abdul Rahman, Mohamed and Rajan, Jose and K. F., Chong (2016) High Surface Area Activated Carbon from Rice Husk as a High Performance Supercapacitor Electrode. Electrochimica Acta, 192. pp. 110-119. ISSN 0013-4686 http://dx.doi.org/10.1016/j.electacta.2016.01.140 DOI: 10.1016/j.electacta.2016.01.140 |
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Q Science (General) T Technology (General) Ellie Yi, Lih Teo Lingeswarran, Muniandy Eng, Poh Ng Farook, Adam Abdul Rahman, Mohamed Rajan, Jose K. F., Chong High Surface Area Activated Carbon from Rice Husk as a High Performance Supercapacitor Electrode |
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In this study, we report on the application of high surface area activated carbon (AC) derived from rice husks as a supercapacitor electrode. The prepared AC was free from Brønsted or Lewis acid sites, thus making the electrical double layer capacitance as the main charge storage mechanism. Three samples of AC with different surface areas were prepared at different activation temperatures and studied electrochemically using cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance spectroscopy. All AC samples exhibited good electrochemical performance as supercapacitor electrode. The maximum specific capacitance (147 F g−1) was obtained by the AC sample (surface area of 2696 m2 g−1) which was prepared at an activation temperature of 850 °C. Detailed impedance studies revealed the low resistivity (0.23 Ω) of AC sample and the fast frequency response (0.11 s) of the supercapacitor electrode. |
format |
Article |
author |
Ellie Yi, Lih Teo Lingeswarran, Muniandy Eng, Poh Ng Farook, Adam Abdul Rahman, Mohamed Rajan, Jose K. F., Chong |
author_facet |
Ellie Yi, Lih Teo Lingeswarran, Muniandy Eng, Poh Ng Farook, Adam Abdul Rahman, Mohamed Rajan, Jose K. F., Chong |
author_sort |
Ellie Yi, Lih Teo |
title |
High Surface Area Activated Carbon from Rice Husk as a High Performance Supercapacitor Electrode |
title_short |
High Surface Area Activated Carbon from Rice Husk as a High Performance Supercapacitor Electrode |
title_full |
High Surface Area Activated Carbon from Rice Husk as a High Performance Supercapacitor Electrode |
title_fullStr |
High Surface Area Activated Carbon from Rice Husk as a High Performance Supercapacitor Electrode |
title_full_unstemmed |
High Surface Area Activated Carbon from Rice Husk as a High Performance Supercapacitor Electrode |
title_sort |
high surface area activated carbon from rice husk as a high performance supercapacitor electrode |
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Elsevier |
publishDate |
2016 |
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http://umpir.ump.edu.my/id/eprint/11871/1/High%20Surface%20Area%20Activated%20Carbon%20From%20Rice%20Husk%20As%20A%20High%20Performance%20Supercapacitor%20Electrode.pdf http://umpir.ump.edu.my/id/eprint/11871/ http://dx.doi.org/10.1016/j.electacta.2016.01.140 |
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