Cubic nanostructure of Co3O4@nitrogen doped graphene oxide/polyindole composite efficient electrodes for high performance energy storage applications

Sivalingam Ramesh; Hemraj Yadav; Chinna Bathula; Surendra Shinde; Arumugam Sivasamy; Hyun Seok Kim; Heung Soo Kim; Joo Hyung Kim

doi:10.1016/j.jmrt.2020.08.037

Cubic nanostructure of Co₃O₄@nitrogen doped graphene oxide/polyindole composite efficient electrodes for high performance energy storage applications

Sivalingam Ramesh
, Hemraj Yadav
, Chinna Bathula
, Surendra Shinde
, Arumugam Sivasamy
, Hyun Seok Kim
, Heung Soo Kim
, Joo Hyung Kim

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

48 Scopus citations

Abstract

In this study, Co₃O₄@NGO/polyindole composites were synthesized using ultrasonication followed by hydrothermal processes. The structure and morphology of composites were investigated by analytical techniques such as Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, X-ray diffraction analysis (XRD), X-ray photo electron spectroscopy (XPS), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HR-TEM) and Brunauer-Emmett-Teller (BET) surface analysis. The electrochemical performances of the composites were studied by cyclic voltammetry (CV), galvanostatic charge discharge (GCD)and electrochemical impedance spectroscopy analysis (EIS) measurements. As a proof of concept demonstration we have employed Co₃O₄@NGO/polyindole (PIN) as an electrode in supercapacitor. The Co₃O₄@NGO/PIN composite showed a capacitance of ∼680 F g⁻¹ at 0.5 Ag⁻¹ and had an excellent cycling stability of 96% after 5000 cycles at 0.5 Ag⁻¹ indicating the material as a potential candidate in supercapacitor applications.

Original language	English
Pages (from-to)	11464-11475
Number of pages	12
Journal	Journal of Materials Research and Technology
Volume	9
Issue number	5
DOIs	https://doi.org/10.1016/j.jmrt.2020.08.037
State	Published - 2020

Keywords

Cobalt oxide (CoO)
Cyclic retention
Electrochemical properties
Excellent
N-doped graphene oxide (NGO)
Polyindole (PIN)
Supercapacitor

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10.1016/j.jmrt.2020.08.037

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title = "Cubic nanostructure of Co3O4@nitrogen doped graphene oxide/polyindole composite efficient electrodes for high performance energy storage applications",

abstract = "In this study, Co3O4@NGO/polyindole composites were synthesized using ultrasonication followed by hydrothermal processes. The structure and morphology of composites were investigated by analytical techniques such as Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, X-ray diffraction analysis (XRD), X-ray photo electron spectroscopy (XPS), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HR-TEM) and Brunauer-Emmett-Teller (BET) surface analysis. The electrochemical performances of the composites were studied by cyclic voltammetry (CV), galvanostatic charge discharge (GCD)and electrochemical impedance spectroscopy analysis (EIS) measurements. As a proof of concept demonstration we have employed Co3O4@NGO/polyindole (PIN) as an electrode in supercapacitor. The Co3O4@NGO/PIN composite showed a capacitance of ∼680 F g−1 at 0.5 Ag−1 and had an excellent cycling stability of 96\% after 5000 cycles at 0.5 Ag−1 indicating the material as a potential candidate in supercapacitor applications.",

keywords = "Cobalt oxide (CoO), Cyclic retention, Electrochemical properties, Excellent, N-doped graphene oxide (NGO), Polyindole (PIN), Supercapacitor",

author = "Sivalingam Ramesh and Hemraj Yadav and Chinna Bathula and Surendra Shinde and Arumugam Sivasamy and Kim, \{Hyun Seok\} and Kim, \{Heung Soo\} and Kim, \{Joo Hyung\}",

note = "Publisher Copyright: {\textcopyright} 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).",

year = "2020",

doi = "10.1016/j.jmrt.2020.08.037",

language = "English",

volume = "9",

pages = "11464--11475",

journal = "Journal of Materials Research and Technology",

issn = "2238-7854",

publisher = "Elsevier Editora Ltda",

number = "5",

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TY - JOUR

T1 - Cubic nanostructure of Co3O4@nitrogen doped graphene oxide/polyindole composite efficient electrodes for high performance energy storage applications

AU - Ramesh, Sivalingam

AU - Yadav, Hemraj

AU - Bathula, Chinna

AU - Shinde, Surendra

AU - Sivasamy, Arumugam

AU - Kim, Hyun Seok

AU - Kim, Heung Soo

AU - Kim, Joo Hyung

PY - 2020

Y1 - 2020

N2 - In this study, Co3O4@NGO/polyindole composites were synthesized using ultrasonication followed by hydrothermal processes. The structure and morphology of composites were investigated by analytical techniques such as Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, X-ray diffraction analysis (XRD), X-ray photo electron spectroscopy (XPS), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HR-TEM) and Brunauer-Emmett-Teller (BET) surface analysis. The electrochemical performances of the composites were studied by cyclic voltammetry (CV), galvanostatic charge discharge (GCD)and electrochemical impedance spectroscopy analysis (EIS) measurements. As a proof of concept demonstration we have employed Co3O4@NGO/polyindole (PIN) as an electrode in supercapacitor. The Co3O4@NGO/PIN composite showed a capacitance of ∼680 F g−1 at 0.5 Ag−1 and had an excellent cycling stability of 96% after 5000 cycles at 0.5 Ag−1 indicating the material as a potential candidate in supercapacitor applications.

AB - In this study, Co3O4@NGO/polyindole composites were synthesized using ultrasonication followed by hydrothermal processes. The structure and morphology of composites were investigated by analytical techniques such as Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, X-ray diffraction analysis (XRD), X-ray photo electron spectroscopy (XPS), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HR-TEM) and Brunauer-Emmett-Teller (BET) surface analysis. The electrochemical performances of the composites were studied by cyclic voltammetry (CV), galvanostatic charge discharge (GCD)and electrochemical impedance spectroscopy analysis (EIS) measurements. As a proof of concept demonstration we have employed Co3O4@NGO/polyindole (PIN) as an electrode in supercapacitor. The Co3O4@NGO/PIN composite showed a capacitance of ∼680 F g−1 at 0.5 Ag−1 and had an excellent cycling stability of 96% after 5000 cycles at 0.5 Ag−1 indicating the material as a potential candidate in supercapacitor applications.

KW - Cobalt oxide (CoO)

KW - Cyclic retention

KW - Electrochemical properties

KW - Excellent

KW - N-doped graphene oxide (NGO)

KW - Polyindole (PIN)

KW - Supercapacitor

UR - https://www.scopus.com/pages/publications/85094324463

U2 - 10.1016/j.jmrt.2020.08.037

DO - 10.1016/j.jmrt.2020.08.037

M3 - Article

AN - SCOPUS:85094324463

SN - 2238-7854

VL - 9

SP - 11464

EP - 11475

JO - Journal of Materials Research and Technology

JF - Journal of Materials Research and Technology

IS - 5

ER -

Cubic nanostructure of Co₃O₄@nitrogen doped graphene oxide/polyindole composite efficient electrodes for high performance energy storage applications

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Keywords

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