Enhanced symmetric supercapacitive performance of Co(OH)2 nanorods decorated conducting porous graphene foam electrodes

U. M. Patil; Su Chan Lee; J. S. Sohn; S. B. Kulkarni; K. V. Gurav; J. H. Kim; Jae Hun Kim; Seok Lee; Seong Chan Jun

doi:10.1016/j.electacta.2014.02.063

Enhanced symmetric supercapacitive performance of Co(OH)₂ nanorods decorated conducting porous graphene foam electrodes

U. M. Patil, Su Chan Lee, J. S. Sohn, S. B. Kulkarni, K. V. Gurav, J. H. Kim, Jae Hun Kim, Seok Lee, Seong Chan Jun

Department of Mechanical Engineering

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

87 Citations (Scopus)

Abstract

Hierarchical entangled Co(OH)₂ nanorods (NRs) are anchored on graphene foam (GF) electrodes by using a facile chemical bath deposition (CBD) method. The porous, conducting, and higher specific area access offered by the interconnected 3D graphene framework along with unique Co(OH)₂ NRs morphology of electrode displays ultrahigh specific capacitance, energy and power density. The Co(OH)₂/GF electrode reveals maximum specific capacitance about 1139 F g^-1 at 10 A g^-1 charge-discharge current density in 1 M KOH aqueous solution. Moreover, Co(OH)₂/GF electrode in the symmetric supercapacitor device, reveals a high energy (13.9 Wh kg^-1) with power (18 kW kg^-1) density. These results promote the potential applicability of Co(OH)₂/GF electrode in the supercapacitor field with effective boosting in charge transfer and storage mechanism.

Original language	English
Pages (from-to)	334-342
Number of pages	9
Journal	Electrochimica Acta
Volume	129
DOIs	https://doi.org/10.1016/j.electacta.2014.02.063
Publication status	Published - 2014 May 20

Bibliographical note

Funding Information:
This work was partially supported by the Pioneer Research Center Program (2010-0019313), and the Priority Research Centers Program (2009-0093823) through the National Research Foundation (NRF) of Korea funded by the Ministry of Science, ICT & Future Planning.

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)
Electrochemistry

Access to Document

10.1016/j.electacta.2014.02.063

Cite this

@article{6aa226ba1bb64aa6a71b437dea42a442,

title = "Enhanced symmetric supercapacitive performance of Co(OH)2 nanorods decorated conducting porous graphene foam electrodes",

abstract = "Hierarchical entangled Co(OH)2 nanorods (NRs) are anchored on graphene foam (GF) electrodes by using a facile chemical bath deposition (CBD) method. The porous, conducting, and higher specific area access offered by the interconnected 3D graphene framework along with unique Co(OH)2 NRs morphology of electrode displays ultrahigh specific capacitance, energy and power density. The Co(OH)2/GF electrode reveals maximum specific capacitance about 1139 F g-1 at 10 A g-1 charge-discharge current density in 1 M KOH aqueous solution. Moreover, Co(OH)2/GF electrode in the symmetric supercapacitor device, reveals a high energy (13.9 Wh kg-1) with power (18 kW kg-1) density. These results promote the potential applicability of Co(OH)2/GF electrode in the supercapacitor field with effective boosting in charge transfer and storage mechanism.",

author = "Patil, {U. M.} and Lee, {Su Chan} and Sohn, {J. S.} and Kulkarni, {S. B.} and Gurav, {K. V.} and Kim, {J. H.} and Kim, {Jae Hun} and Seok Lee and Jun, {Seong Chan}",

note = "Funding Information: This work was partially supported by the Pioneer Research Center Program (2010-0019313), and the Priority Research Centers Program (2009-0093823) through the National Research Foundation (NRF) of Korea funded by the Ministry of Science, ICT & Future Planning. ",

year = "2014",

month = may,

day = "20",

doi = "10.1016/j.electacta.2014.02.063",

language = "English",

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T1 - Enhanced symmetric supercapacitive performance of Co(OH)2 nanorods decorated conducting porous graphene foam electrodes

AU - Patil, U. M.

AU - Lee, Su Chan

AU - Sohn, J. S.

AU - Kulkarni, S. B.

AU - Gurav, K. V.

AU - Kim, J. H.

AU - Kim, Jae Hun

AU - Lee, Seok

AU - Jun, Seong Chan

N1 - Funding Information: This work was partially supported by the Pioneer Research Center Program (2010-0019313), and the Priority Research Centers Program (2009-0093823) through the National Research Foundation (NRF) of Korea funded by the Ministry of Science, ICT & Future Planning.

PY - 2014/5/20

Y1 - 2014/5/20

N2 - Hierarchical entangled Co(OH)2 nanorods (NRs) are anchored on graphene foam (GF) electrodes by using a facile chemical bath deposition (CBD) method. The porous, conducting, and higher specific area access offered by the interconnected 3D graphene framework along with unique Co(OH)2 NRs morphology of electrode displays ultrahigh specific capacitance, energy and power density. The Co(OH)2/GF electrode reveals maximum specific capacitance about 1139 F g-1 at 10 A g-1 charge-discharge current density in 1 M KOH aqueous solution. Moreover, Co(OH)2/GF electrode in the symmetric supercapacitor device, reveals a high energy (13.9 Wh kg-1) with power (18 kW kg-1) density. These results promote the potential applicability of Co(OH)2/GF electrode in the supercapacitor field with effective boosting in charge transfer and storage mechanism.

AB - Hierarchical entangled Co(OH)2 nanorods (NRs) are anchored on graphene foam (GF) electrodes by using a facile chemical bath deposition (CBD) method. The porous, conducting, and higher specific area access offered by the interconnected 3D graphene framework along with unique Co(OH)2 NRs morphology of electrode displays ultrahigh specific capacitance, energy and power density. The Co(OH)2/GF electrode reveals maximum specific capacitance about 1139 F g-1 at 10 A g-1 charge-discharge current density in 1 M KOH aqueous solution. Moreover, Co(OH)2/GF electrode in the symmetric supercapacitor device, reveals a high energy (13.9 Wh kg-1) with power (18 kW kg-1) density. These results promote the potential applicability of Co(OH)2/GF electrode in the supercapacitor field with effective boosting in charge transfer and storage mechanism.

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