Mesoporous hexagonal nanorods of NiCo2O4 nanoparticles via hydrothermal route for supercapacitor application

M. A. Yewale; R. A. Kadam; N. K. Kaushik; N. N. Linh; A. M. Teli; J. C. Shin; L. P. Lingamdinne; J. R. Koduru; D. K. Shin

doi:10.1016/j.cplett.2022.139654

Mesoporous hexagonal nanorods of NiCo₂O₄ nanoparticles via hydrothermal route for supercapacitor application

M. A. Yewale, R. A. Kadam, N. K. Kaushik, N. N. Linh, A. M. Teli, J. C. Shin, L. P. Lingamdinne, J. R. Koduru, D. K. Shin

Department of Electronics & Electrical Engineering

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

26 Scopus citations

Abstract

Binary metal oxide with a mesoporous microstructure has been considered a potential candidate electrode material for supercapacitor. The mesoporous microstructure of binary metal oxide improves electric conductivity. A mesoporous hexagonal microstructure of NiCo₂O₄ nanorods has been fabricated by a chemical hydrothermal method. Mesoporous hexagonal nanorods composed of small nanoparticles with an average thickness of 412 nm are prepared with a 14-hour hydrothermal reaction time. As synthesized, mesoporous hexagonal nanorods of NiCo₂O₄ as an electrode material show the highest specific capacitance of 1061 F/g and 184 mF/cm² areal capacitance. The specific energy and specific power density of the NiCo₂O₄ electrode are 39 WhKg⁻¹ and 683 Wkg⁻¹. The equivalent charge resistance (R_s) and charge transfer resistance (R_ct) of the NiCo₂O₄ electrode are 0.70 Ω and 43 Ω respectively. The NiCo₂O₄ electrode had an initial capacitance retention value of 81% after 3000 cycles.

Original language	English
Article number	139654
Journal	Chemical Physics Letters
Volume	800
DOIs	https://doi.org/10.1016/j.cplett.2022.139654
State	Published - Aug 2022

Keywords

Charge transfer resistance
Electrochemical studies
Growth Mechanism
NiCoO nanorods
Specific capatance
Supercapacitor
XPS

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10.1016/j.cplett.2022.139654

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title = "Mesoporous hexagonal nanorods of NiCo2O4 nanoparticles via hydrothermal route for supercapacitor application",

abstract = "Binary metal oxide with a mesoporous microstructure has been considered a potential candidate electrode material for supercapacitor. The mesoporous microstructure of binary metal oxide improves electric conductivity. A mesoporous hexagonal microstructure of NiCo2O4 nanorods has been fabricated by a chemical hydrothermal method. Mesoporous hexagonal nanorods composed of small nanoparticles with an average thickness of 412 nm are prepared with a 14-hour hydrothermal reaction time. As synthesized, mesoporous hexagonal nanorods of NiCo2O4 as an electrode material show the highest specific capacitance of 1061 F/g and 184 mF/cm2 areal capacitance. The specific energy and specific power density of the NiCo2O4 electrode are 39 WhKg−1 and 683 Wkg−1. The equivalent charge resistance (Rs) and charge transfer resistance (Rct) of the NiCo2O4 electrode are 0.70 Ω and 43 Ω respectively. The NiCo2O4 electrode had an initial capacitance retention value of 81% after 3000 cycles.",

keywords = "Charge transfer resistance, Electrochemical studies, Growth Mechanism, NiCoO nanorods, Specific capatance, Supercapacitor, XPS",

author = "Yewale, {M. A.} and Kadam, {R. A.} and Kaushik, {N. K.} and Linh, {N. N.} and Teli, {A. M.} and Shin, {J. C.} and Lingamdinne, {L. P.} and Koduru, {J. R.} and Shin, {D. K.}",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

month = aug,

doi = "10.1016/j.cplett.2022.139654",

language = "English",

volume = "800",

journal = "Chemical Physics Letters",

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AU - Yewale, M. A.

AU - Kadam, R. A.

AU - Kaushik, N. K.

AU - Linh, N. N.

AU - Teli, A. M.

AU - Shin, J. C.

AU - Lingamdinne, L. P.

AU - Koduru, J. R.

AU - Shin, D. K.

PY - 2022/8

Y1 - 2022/8

N2 - Binary metal oxide with a mesoporous microstructure has been considered a potential candidate electrode material for supercapacitor. The mesoporous microstructure of binary metal oxide improves electric conductivity. A mesoporous hexagonal microstructure of NiCo2O4 nanorods has been fabricated by a chemical hydrothermal method. Mesoporous hexagonal nanorods composed of small nanoparticles with an average thickness of 412 nm are prepared with a 14-hour hydrothermal reaction time. As synthesized, mesoporous hexagonal nanorods of NiCo2O4 as an electrode material show the highest specific capacitance of 1061 F/g and 184 mF/cm2 areal capacitance. The specific energy and specific power density of the NiCo2O4 electrode are 39 WhKg−1 and 683 Wkg−1. The equivalent charge resistance (Rs) and charge transfer resistance (Rct) of the NiCo2O4 electrode are 0.70 Ω and 43 Ω respectively. The NiCo2O4 electrode had an initial capacitance retention value of 81% after 3000 cycles.

AB - Binary metal oxide with a mesoporous microstructure has been considered a potential candidate electrode material for supercapacitor. The mesoporous microstructure of binary metal oxide improves electric conductivity. A mesoporous hexagonal microstructure of NiCo2O4 nanorods has been fabricated by a chemical hydrothermal method. Mesoporous hexagonal nanorods composed of small nanoparticles with an average thickness of 412 nm are prepared with a 14-hour hydrothermal reaction time. As synthesized, mesoporous hexagonal nanorods of NiCo2O4 as an electrode material show the highest specific capacitance of 1061 F/g and 184 mF/cm2 areal capacitance. The specific energy and specific power density of the NiCo2O4 electrode are 39 WhKg−1 and 683 Wkg−1. The equivalent charge resistance (Rs) and charge transfer resistance (Rct) of the NiCo2O4 electrode are 0.70 Ω and 43 Ω respectively. The NiCo2O4 electrode had an initial capacitance retention value of 81% after 3000 cycles.

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KW - Electrochemical studies

KW - Growth Mechanism

KW - NiCoO nanorods

KW - Specific capatance

KW - Supercapacitor

KW - XPS

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DO - 10.1016/j.cplett.2022.139654

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JO - Chemical Physics Letters

JF - Chemical Physics Letters

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ER -

Mesoporous hexagonal nanorods of NiCo₂O₄ nanoparticles via hydrothermal route for supercapacitor application

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