Reduced Graphene Oxide Embedded V2O5 Nanorods and Porous Honey Carbon as High Performance Electrodes for Hybrid Sodium-ion Supercapacitors
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
View Archive Info| Field | Value | |
| Title |
Reduced Graphene Oxide Embedded V2O5 Nanorods and Porous Honey Carbon as High Performance Electrodes for Hybrid Sodium-ion Supercapacitors
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| Creator |
Kiruthiga, R.
Nithya, C. Karvembu, R. Venkata Rami Reddy, B. |
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| Subject |
Electrodics and Electrocatalysis
Nanotechnology Electrochemical Power Sources |
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| Description |
Attaining high energy density and power density in a single energy storage device is still a major
challenge for electrochemical energy storage research community. Sodium-ion hybrid supercapacitor is a
sustainable energy storage system which accomplishes the gap between battery and supercapacitor
comprises of high energy density-battery type faradaic anode and high power density-supercapacitor
type non-faradaic cathode. Here we have reported high surface area (1554 m2 g�1
) activated porous
carbon obtained from naturally occurring viscous liquid honey as a cathode and sol-gel derived, V2O5
nanorods anchored reduced graphene oxide (rGO) nanocomposite as an anode for non- aqueous sodiumion capacitor. When explored honey derived carbon as a non-faradaic cathode, it exhibits a higher specific
capacitance of 224 F g�1 and V2O5@rGO anode delivers the maximum capacitance of 289 F g�1 at
0.01 A g�1 vs Na/Na+
. The prepared V2O5@rGO anode has long stable cycle life (V2O5 nanorods@rGO
retains 85% of the initial capacitance (112.2 F g�1
) at the current density of 0.06 A g�1 after 1000 cycles). The assembled sodium-ion capacitor (NIC) using honey derived activated carbon (AC) and V2O5@rGO
anode delivers the energy density of 65Wh kg�1 and power density of 72W kg�1 at 0.03 A g�1. The
capacity retention is 74% after 1000 cycles at the current density of 0.06 Ag�1. The assembled sodium-ion
hybrid capacitor delivers maximum energy and power density and exhibits very long stable cycle life
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| Publisher |
Elsevier
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| Date |
2017-10-09
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/3234/1/185-2017.pdf
Kiruthiga, R. and Nithya, C. and Karvembu, R. and Venkata Rami Reddy, B. (2017) Reduced Graphene Oxide Embedded V2O5 Nanorods and Porous Honey Carbon as High Performance Electrodes for Hybrid Sodium-ion Supercapacitors. Electrochimica Acta, 256. pp. 221-231. ISSN 0013-4686 |
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| Relation |
http://www.elsevier.com/locate/electacta
http://cecri.csircentral.net/3234/ |
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