Preparation of highly porous binderless activated carbon electrodes from fibres of oil palm empty fruit bunches for application in supercapacitors

Farma, Rakhmawati; Deraman, Mohamad; Awitdrus, A.; Talib, Ibrahim Abu; Taer, Erman; Basri, N. H.; Manjunatha, Jamballi G.; Ishak, M. M.; Dollah, B.N.M.; Hashmi, S.A.

doi:10.1016/j.biortech.2013.01.044

Cited by 375 publications

(160 citation statements)

References 35 publications

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“…Second, the CV curves were almost rectangular in shape without any redox peaks, indicating near to ideal behavior of electrochemical double layer type capacitor. [16,36] Furthermore, the charge-discharge characteristics of the electrode based on tea leaves were compared at current density of 2 A g −1 and are shown in Figure 5b. The shortest and the largest discharge time were observed for Tea-0 and the Tea-3 sample, respectively, suggesting the highest charge storage capacity was the Tea-3 sample.…”

Section: Resultsmentioning

confidence: 99%

“…[18] KOH activated carbon from rice bran showed a high surface area of 2475 m 2 g −1 . [15,16,19] Several KOH-based activated carbon derivations from various sources for supercapacitor applications have been reported. For example, Kalpana et al reported an electric double layer capacitor made from KOH activated carbon using waste newspaper.…”

Section: Introductionmentioning

confidence: 99%

“…Activation of waste-derived carbon can be done using various methods including chemical, steam, and CO 2 -based activation. [14][15][16][17] For example, steam activated carbon from fir wood showed an activated surface area of 1131 m 2 g −1 while, CO 2 activated empty fruit bunches of palm showed a surface area of 1704 m 2 g −1 . [12,13] KOH activation is the most popular way to create high surface area and Used tea leaves are utilized for preparation of carbon with high surface area and electrochemical properties.…”

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Eco‐Friendly and High Performance Supercapacitors for Elevated Temperature Applications Using Recycled Tea Leaves

et al. 2017

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energy supply are required. Hence, an efficient local energy storage/production system plays a vital role for such applications. [1] The supercapacitor is one of the efficient energy storage systems which can store energy via electric double layer and faradic reactions. [2,3] The electric double layer capacitor (EDLC) stores the charge over the active surface area of the material and shows very durable performance over long period. [3,4] Thus, creating carbon with a high surface area could be one of the ways to improve the performance of EDLC-based supercapacitor devices. There are several publications documenting the utilization of waste-derived carbon source such as seeds, seed shells, leaves, bagasse, waste paper, and tyre. [5][6][7][8][9][10][11][12] Waste tea is an additional exciting source for carbon. [13] Most of the time, an activation step is required to achieve the high surface area to enhance the performance of the carbon. Activation of waste-derived carbon can be done using various methods including chemical, steam, and CO 2 -based activation. [14][15][16][17] For example, steam activated carbon from fir wood showed an activated surface area of 1131 m 2 g −1 while, CO 2 activated empty fruit bunches of palm showed a surface area of 1704 m 2 g −1 . [12,13] KOH activation is the most popular way to create high surface area and Used tea leaves are utilized for preparation of carbon with high surface area and electrochemical properties. Surface area and pore size of tea leaves derived carbon are controlled by varying the amount of KOH as activating agent. The maximum surface area of 2532 m 2 g −1 is observed, which is much higher than unactivated tea leaves (3.6 m 2 g −1 ). It is observed that the size of the electrolyte ions has a profound effect on the energy storage capacity. The maximum specific capacitance of 292 F g −1 is observed in 3 m KOH electrolyte with outstanding cyclic stability, while the lowest specific capacitance of 246 F g −1 is obtained in 3 m LiOH electrolyte at 2 mV s −1 . The tea leaves derived electrode shows almost 100% capacitance retention up to 5000 cycles of study. The symmetrical supercapacitor device shows a maximum specific capacitance of 0.64 F cm −2 at 1 mA cm −2 and about 95% of specific capacitance is retained after increasing current density to 12 mA cm −2 , confirming the high rate stability of the device. An improvement over 35% in the charge storage capacity is seen when increasing device temperature from 10 to 80 °C. The study suggests that used tea leaves can be used for the fabrication of environment friendly high performance supercapacitor devices at a low cost.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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Eco‐Friendly and High Performance Supercapacitors for Elevated Temperature Applications Using Recycled Tea Leaves

et al. 2017

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“…Highly porous binderless activated carbon monolith electrodes were produced [15] from fibers of oil palm empty fruit bunches through N2-carbonization followed by activation. For a surface area of 1704 m 2 /g a specific capacitance of 150 F/g and specific energy of 4.297 Wh/kg is reported for aqueous electrolyte.…”

Section: Porous Carbon At Nanoscale Levelmentioning

confidence: 99%

Supercapacitors specialities - Materials review

Obreja

2014

AIP Conference Proceedings

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“…Common materials were used as supercapacitor electrodes including metal oxide [2], electronically conducting polymer [3] and porous materials such as activated carbon [4]. Activated carbon has advantageous because of its high surface area, good thermal and electrical conductivity, high stability, low cost and commercial-large scale availability [5].…”

Section: Introductionmentioning

confidence: 99%

Cyclic Voltammometry of Binderless Activated Carbon Monoliths based supercapacitor from Mixtures of Pre-carbonized of Fibers of Empty Fruit Bunches and Green Petroleum Coke

Awitdrus¹

2016

KEG

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Binderless activated carbon monoliths (BACMs) prepared from mixtured of pre-carbonized of fibers of oil palm empty fruit bunches (EFB) and green petroleum coke were used for preparing the carbon based supercapacitor cells. The symmetrical supercapacitor cells were fabricated by using two BACMs electrode prepared for each selected holding time of activation and various compression pressure. The electrochemical behavior of supercapacitor cells were measured at room temperature by using cyclic voltammetry (CV) technique. The maximum specific capacitance (C ) of the cells values were 35.9 and 82.5 F/g for holding time of activation of 1.5 and 2 h, respectively, at the compression pressure of 7.5 metric tons.

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Preparation of highly porous binderless activated carbon electrodes from fibres of oil palm empty fruit bunches for application in supercapacitors

Cited by 375 publications

References 35 publications

Eco‐Friendly and High Performance Supercapacitors for Elevated Temperature Applications Using Recycled Tea Leaves

Eco‐Friendly and High Performance Supercapacitors for Elevated Temperature Applications Using Recycled Tea Leaves

Supercapacitors specialities - Materials review

Cyclic Voltammometry of Binderless Activated Carbon Monoliths based supercapacitor from Mixtures of Pre-carbonized of Fibers of Empty Fruit Bunches and Green Petroleum Coke

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