Biomass derived hierarchically porous carbon inherent structure as an effective metal free cathode for Li-O2/air battery
Biomass derived hierarchically porous carbon inherent structure as an effective metal free cathode for Li-O2/air battery
A hierarchical porous carbon framework derived from betel-nut is synthesized and employed as a bifunctional cathode in a Li-O2/air battery. The prepared betel nut derived activated porous carbon (BNAPC) material exhibits an ordered and merged tube-like porous morphology and a high specific surface area of 768 m2/g. The presence of both meso and micro porous leads to a well-developed 3D interconnected carbon framework, which provides an efficient path for the diffusion of the reactant (oxygen as well as air) and also allows stocking the discharge product of Li2O2. Therefore, it exhibits a high specific capacity and excellent rate performance. A maximum discharge capacity of 9560 and 2000 mAh/g at a current density of 100 mA/g for oxygen and ambient air respectively as the reactant is achieved. The prepared material also exhibits reversible cyclic stability of 27 cycles with a specific capacity of 1000 mAh/g at a 100 mA/g current density in oxygen atmosphere.
Arjunan, A.
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Subbiah, M.
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Sekar, M.
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Ajay Piriya, V.S.
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Balasubramanian, V.
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Sundara, R.
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23 November 2021
Arjunan, A.
602de9a8-1ef7-4c6e-9d35-2268522ab2c9
Subbiah, M.
ab27882a-fdf6-4f3f-945e-ea5aa35461f1
Sekar, M.
2901bb19-72a0-4fbe-bb5e-1152a40f1f40
Ajay Piriya, V.S.
e0ebec14-d54b-4860-bc7d-9958b134998f
Balasubramanian, V.
9b9c761e-cc90-41f3-bf37-5b6ee901ce0f
Sundara, R.
1fc26f2a-1475-466e-9a41-cbcd1b91adec
Arjunan, A., Subbiah, M., Sekar, M., Ajay Piriya, V.S., Balasubramanian, V. and Sundara, R.
(2021)
Biomass derived hierarchically porous carbon inherent structure as an effective metal free cathode for Li-O2/air battery.
Electrochemical Science Advances, 1 (4), [e202000037].
(doi:10.1002/elsa.202000037).
Abstract
A hierarchical porous carbon framework derived from betel-nut is synthesized and employed as a bifunctional cathode in a Li-O2/air battery. The prepared betel nut derived activated porous carbon (BNAPC) material exhibits an ordered and merged tube-like porous morphology and a high specific surface area of 768 m2/g. The presence of both meso and micro porous leads to a well-developed 3D interconnected carbon framework, which provides an efficient path for the diffusion of the reactant (oxygen as well as air) and also allows stocking the discharge product of Li2O2. Therefore, it exhibits a high specific capacity and excellent rate performance. A maximum discharge capacity of 9560 and 2000 mAh/g at a current density of 100 mA/g for oxygen and ambient air respectively as the reactant is achieved. The prepared material also exhibits reversible cyclic stability of 27 cycles with a specific capacity of 1000 mAh/g at a 100 mA/g current density in oxygen atmosphere.
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Electrochemical Science Adv - 2021 - Arjunan - Biomass derived hierarchically porous carbon inherent structure as an
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Accepted/In Press date: 21 March 2021
e-pub ahead of print date: 8 April 2021
Published date: 23 November 2021
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Local EPrints ID: 510378
URI: http://eprints.soton.ac.uk/id/eprint/510378
ISSN: 2698-5977
PURE UUID: a7f12b9a-9302-486d-b1a2-bcda7a47dc72
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Date deposited: 30 Mar 2026 16:31
Last modified: 31 Mar 2026 02:11
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Author:
A. Arjunan
Author:
M. Subbiah
Author:
M. Sekar
Author:
V.S. Ajay Piriya
Author:
V. Balasubramanian
Author:
R. Sundara
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