Preparation of Hierarchical Porous Activated Carbon from Banana Leaves for High-performance Supercapacitor: Effect of Type of Electrolytes on Performance

Chanchal Kumar Roy; Syed Shaheen Shah; Akter H. Reaz; Sharmin Sultana; Al Nakib Chowdhury; Shakhawat H. Firoz; Md Hasan Zahir; Mohammed Ameen Ahmed Qasem; Md Abdul Aziz

doi:10.1002/asia.202001342

Preparation of Hierarchical Porous Activated Carbon from Banana Leaves for High-performance Supercapacitor: Effect of Type of Electrolytes on Performance

Chanchal Kumar Roy
, Syed Shaheen Shah
, Akter H. Reaz
, Sharmin Sultana
, Al Nakib Chowdhury
, Shakhawat H. Firoz
, Md Hasan Zahir
, Mohammed Ameen Ahmed Qasem
, Md Abdul Aziz^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

121 Scopus citations

Abstract

We demonstrate a facile efficient way to fabricate activated carbon nanosheets (ACNSs) consisting of hierarchical porous carbon materials. Simply heating banana leaves with K₂CO₃ produce ACNSs having a unique combination of macro-, meso- and micropores with a high specific surface area of ∼1459 m² g⁻¹. The effects of different electrolytes on the electrochemical supercapacitor performance and stability of the ACNSs are tested using a two-electrode system. The specific capacitance (C_sp) values are 55, 114, and 190 F g⁻¹ in aqueous 0.5 M sodium sulfate, organic 1 M tetraethylammonium tetrafluoroborate in acetonitrile, and pure ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF₆]) electrolytes, respectively. The ACNSs also shows the largest potential window of 3.0 V, the highest specific energy (59 Wh kg⁻¹) and specific power (750 W kg⁻¹) in [BMIM][PF₆]. A mini-prototype device is prepared to demonstrate the practicality of the ACNSs.

Original language	English
Pages (from-to)	296-308
Number of pages	13
Journal	Chemistry - An Asian Journal
Volume	16
Issue number	4
DOIs	https://doi.org/10.1002/asia.202001342
State	Published - 15 Feb 2021

Bibliographical note

Publisher Copyright:
© 2020 Wiley-VCH GmbH

Keywords

1-butyl-3-methylimidazolium hexafluorophosphate
Activated porous carbon nanosheets
Banana leaves
Energy storage
Mesoporous materials
Symmetric supercapacitor
Tetraethylammonium tetrafluoroborate/acetonitrile

ASJC Scopus subject areas

Biochemistry
Organic Chemistry

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10.1002/asia.202001342

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Roy, C. K., Shah, S. S., Reaz, A. H., Sultana, S., Chowdhury, A. N., Firoz, S. H., Zahir, M. H., Ahmed Qasem, M. A., & Aziz, M. A. (2021). Preparation of Hierarchical Porous Activated Carbon from Banana Leaves for High-performance Supercapacitor: Effect of Type of Electrolytes on Performance. Chemistry - An Asian Journal, 16(4), 296-308. https://doi.org/10.1002/asia.202001342

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title = "Preparation of Hierarchical Porous Activated Carbon from Banana Leaves for High-performance Supercapacitor: Effect of Type of Electrolytes on Performance",

abstract = "We demonstrate a facile efficient way to fabricate activated carbon nanosheets (ACNSs) consisting of hierarchical porous carbon materials. Simply heating banana leaves with K2CO3 produce ACNSs having a unique combination of macro-, meso- and micropores with a high specific surface area of ∼1459 m2 g−1. The effects of different electrolytes on the electrochemical supercapacitor performance and stability of the ACNSs are tested using a two-electrode system. The specific capacitance (Csp) values are 55, 114, and 190 F g−1 in aqueous 0.5 M sodium sulfate, organic 1 M tetraethylammonium tetrafluoroborate in acetonitrile, and pure ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF6]) electrolytes, respectively. The ACNSs also shows the largest potential window of 3.0 V, the highest specific energy (59 Wh kg−1) and specific power (750 W kg−1) in [BMIM][PF6]. A mini-prototype device is prepared to demonstrate the practicality of the ACNSs.",

keywords = "1-butyl-3-methylimidazolium hexafluorophosphate, Activated porous carbon nanosheets, Banana leaves, Energy storage, Mesoporous materials, Symmetric supercapacitor, Tetraethylammonium tetrafluoroborate/acetonitrile",

author = "Roy, \{Chanchal Kumar\} and Shah, \{Syed Shaheen\} and Reaz, \{Akter H.\} and Sharmin Sultana and Chowdhury, \{Al Nakib\} and Firoz, \{Shakhawat H.\} and Zahir, \{Md Hasan\} and \{Ahmed Qasem\}, \{Mohammed Ameen\} and Aziz, \{Md Abdul\}",

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volume = "16",

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AU - Firoz, Shakhawat H.

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AU - Ahmed Qasem, Mohammed Ameen

AU - Aziz, Md Abdul

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N2 - We demonstrate a facile efficient way to fabricate activated carbon nanosheets (ACNSs) consisting of hierarchical porous carbon materials. Simply heating banana leaves with K2CO3 produce ACNSs having a unique combination of macro-, meso- and micropores with a high specific surface area of ∼1459 m2 g−1. The effects of different electrolytes on the electrochemical supercapacitor performance and stability of the ACNSs are tested using a two-electrode system. The specific capacitance (Csp) values are 55, 114, and 190 F g−1 in aqueous 0.5 M sodium sulfate, organic 1 M tetraethylammonium tetrafluoroborate in acetonitrile, and pure ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF6]) electrolytes, respectively. The ACNSs also shows the largest potential window of 3.0 V, the highest specific energy (59 Wh kg−1) and specific power (750 W kg−1) in [BMIM][PF6]. A mini-prototype device is prepared to demonstrate the practicality of the ACNSs.

AB - We demonstrate a facile efficient way to fabricate activated carbon nanosheets (ACNSs) consisting of hierarchical porous carbon materials. Simply heating banana leaves with K2CO3 produce ACNSs having a unique combination of macro-, meso- and micropores with a high specific surface area of ∼1459 m2 g−1. The effects of different electrolytes on the electrochemical supercapacitor performance and stability of the ACNSs are tested using a two-electrode system. The specific capacitance (Csp) values are 55, 114, and 190 F g−1 in aqueous 0.5 M sodium sulfate, organic 1 M tetraethylammonium tetrafluoroborate in acetonitrile, and pure ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF6]) electrolytes, respectively. The ACNSs also shows the largest potential window of 3.0 V, the highest specific energy (59 Wh kg−1) and specific power (750 W kg−1) in [BMIM][PF6]. A mini-prototype device is prepared to demonstrate the practicality of the ACNSs.

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KW - Tetraethylammonium tetrafluoroborate/acetonitrile

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Preparation of Hierarchical Porous Activated Carbon from Banana Leaves for High-performance Supercapacitor: Effect of Type of Electrolytes on Performance

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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