A simple wet-chemical synthesis, reaction mechanism, and charge storage application of cobalt oxide electrodes of different morphologies

P. S. Gaikar; S. T. Navale; V. V. Jadhav; P. V. Shinde; D. P. Dubal; P. R. Arjunwadkar; F. J. Stadler; Mu Naushad; Ayman A. Ghfar; Rajaram S. Mane

doi:10.1016/j.electacta.2017.09.039

A simple wet-chemical synthesis, reaction mechanism, and charge storage application of cobalt oxide electrodes of different morphologies

P. S. Gaikar, S. T. Navale^*, V. V. Jadhav, P. V. Shinde, D. P. Dubal, P. R. Arjunwadkar, F. J. Stadler, Mu Naushad, Ayman A. Ghfar, Rajaram S. Mane

^*Corresponding author for this work

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

20 Scopus citations

Abstract

In the present work, cobalt oxide (Co₃O₄) electrodes of different morphologies are synthesized onto a stainless-steel (SS) substrate by a simple and cost-effective wet chemical deposition method in presence of different cobalt precursors and then used for energy storage application. Chemical reactions, responsible for different morphologies, are proposed and structural elucidation and morphological evolution studies of Co₃O₄ electrodes are attempted. Nano-platelets, nano-needles, and nano-grass-type of surface morphologies, corroborated from the scanning electron microscopy and the transmission electron microscopy digital photoimages, for cobalt acetate, cobalt chloride, and cobalt nitrate precursors of Co₃O₄ electrodes are obtained, respectively. Electrochemical analysis revealed that nano-grass-type Co₃O₄ electrode exhibits higher specific capacity (SC) (66.40 mAh g⁻¹ at 1 mA cm⁻² current density), excellent cycle life (∼90% after 1000 cycle) and high rate capability (77%) than that of nano-platelets (23.22 mAh g⁻¹) and nano-needles (61.22 mAh g⁻¹)-type Co₃O₄ electrodes.

Original language	English
Pages (from-to)	151-162
Number of pages	12
Journal	Electrochimica Acta
Volume	253
DOIs	https://doi.org/10.1016/j.electacta.2017.09.039
State	Published - 1 Nov 2017
Externally published	Yes

Keywords

Chemical synthesis
CoO
Electrochemical properties
Impedance spectroscopy

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10.1016/j.electacta.2017.09.039

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Gaikar, P. S., Navale, S. T., Jadhav, V. V., Shinde, P. V., Dubal, D. P., Arjunwadkar, P. R., Stadler, F. J., Naushad, M., Ghfar, A. A., & Mane, R. S. (2017). A simple wet-chemical synthesis, reaction mechanism, and charge storage application of cobalt oxide electrodes of different morphologies. Electrochimica Acta, 253, 151-162. https://doi.org/10.1016/j.electacta.2017.09.039

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title = "A simple wet-chemical synthesis, reaction mechanism, and charge storage application of cobalt oxide electrodes of different morphologies",

abstract = "In the present work, cobalt oxide (Co3O4) electrodes of different morphologies are synthesized onto a stainless-steel (SS) substrate by a simple and cost-effective wet chemical deposition method in presence of different cobalt precursors and then used for energy storage application. Chemical reactions, responsible for different morphologies, are proposed and structural elucidation and morphological evolution studies of Co3O4 electrodes are attempted. Nano-platelets, nano-needles, and nano-grass-type of surface morphologies, corroborated from the scanning electron microscopy and the transmission electron microscopy digital photoimages, for cobalt acetate, cobalt chloride, and cobalt nitrate precursors of Co3O4 electrodes are obtained, respectively. Electrochemical analysis revealed that nano-grass-type Co3O4 electrode exhibits higher specific capacity (SC) (66.40 mAh g−1 at 1 mA cm−2 current density), excellent cycle life (∼90% after 1000 cycle) and high rate capability (77%) than that of nano-platelets (23.22 mAh g−1) and nano-needles (61.22 mAh g−1)-type Co3O4 electrodes.",

keywords = "Chemical synthesis, CoO, Electrochemical properties, Impedance spectroscopy",

author = "Gaikar, {P. S.} and Navale, {S. T.} and Jadhav, {V. V.} and Shinde, {P. V.} and Dubal, {D. P.} and Arjunwadkar, {P. R.} and Stadler, {F. J.} and Mu Naushad and Ghfar, {Ayman A.} and Mane, {Rajaram S.}",

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doi = "10.1016/j.electacta.2017.09.039",

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T1 - A simple wet-chemical synthesis, reaction mechanism, and charge storage application of cobalt oxide electrodes of different morphologies

AU - Gaikar, P. S.

AU - Navale, S. T.

AU - Jadhav, V. V.

AU - Shinde, P. V.

AU - Dubal, D. P.

AU - Arjunwadkar, P. R.

AU - Stadler, F. J.

AU - Naushad, Mu

AU - Ghfar, Ayman A.

AU - Mane, Rajaram S.

PY - 2017/11/1

Y1 - 2017/11/1

N2 - In the present work, cobalt oxide (Co3O4) electrodes of different morphologies are synthesized onto a stainless-steel (SS) substrate by a simple and cost-effective wet chemical deposition method in presence of different cobalt precursors and then used for energy storage application. Chemical reactions, responsible for different morphologies, are proposed and structural elucidation and morphological evolution studies of Co3O4 electrodes are attempted. Nano-platelets, nano-needles, and nano-grass-type of surface morphologies, corroborated from the scanning electron microscopy and the transmission electron microscopy digital photoimages, for cobalt acetate, cobalt chloride, and cobalt nitrate precursors of Co3O4 electrodes are obtained, respectively. Electrochemical analysis revealed that nano-grass-type Co3O4 electrode exhibits higher specific capacity (SC) (66.40 mAh g−1 at 1 mA cm−2 current density), excellent cycle life (∼90% after 1000 cycle) and high rate capability (77%) than that of nano-platelets (23.22 mAh g−1) and nano-needles (61.22 mAh g−1)-type Co3O4 electrodes.

AB - In the present work, cobalt oxide (Co3O4) electrodes of different morphologies are synthesized onto a stainless-steel (SS) substrate by a simple and cost-effective wet chemical deposition method in presence of different cobalt precursors and then used for energy storage application. Chemical reactions, responsible for different morphologies, are proposed and structural elucidation and morphological evolution studies of Co3O4 electrodes are attempted. Nano-platelets, nano-needles, and nano-grass-type of surface morphologies, corroborated from the scanning electron microscopy and the transmission electron microscopy digital photoimages, for cobalt acetate, cobalt chloride, and cobalt nitrate precursors of Co3O4 electrodes are obtained, respectively. Electrochemical analysis revealed that nano-grass-type Co3O4 electrode exhibits higher specific capacity (SC) (66.40 mAh g−1 at 1 mA cm−2 current density), excellent cycle life (∼90% after 1000 cycle) and high rate capability (77%) than that of nano-platelets (23.22 mAh g−1) and nano-needles (61.22 mAh g−1)-type Co3O4 electrodes.

KW - Chemical synthesis

KW - CoO

KW - Electrochemical properties

KW - Impedance spectroscopy

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DO - 10.1016/j.electacta.2017.09.039

M3 - 文章

AN - SCOPUS:85029425615

SN - 0013-4686

VL - 253

SP - 151

EP - 162

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

A simple wet-chemical synthesis, reaction mechanism, and charge storage application of cobalt oxide electrodes of different morphologies

Abstract

Keywords

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