Correlation between the mesoporous carbon sphere with Ni(OH)2 nanoparticle contents for high-performance supercapacitor electrode

Jaeho Choi; Myeongjin Kim; Jooheon Kim

doi:10.1007/s11581-017-2240-5

Correlation between the mesoporous carbon sphere with Ni(OH)₂ nanoparticle contents for high-performance supercapacitor electrode

Jaeho Choi, Myeongjin Kim, Jooheon Kim

Major in Hydrogen & Renewable Energy

Chung-Ang University

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

7 Scopus citations

Abstract

Ni(OH)₂ nanoparticles were decorated on mesoporous carbon spheres (MPCS) using a simple hard template method. The MPCS were derived from sodium carboxymethyl cellulose. As-prepared MPCS/Ni(OH)₂ nanocomposites were used as electrode materials for supercapacitors. These composites exhibited better electrochemical properties than a pristine mesoporous carbon sphere owing to the synergistic effect. However, the increase in Ni(OH)₂ is not proportional to the electrochemical performance improvement. The addition of an optimal amount of Ni(OH)₂, typically 1:20 by weight (MPCS:NiCl₂·6H₂O), showed an excellent specific capacitance of 1338.296 F g⁻¹ at a scan rate of 5 mV s⁻¹. These encouraging results indicate excellent potential for the development of highly capacitive energy storage devices for practical applications.

Original language	English
Pages (from-to)	815-825
Number of pages	11
Journal	Ionics
Volume	24
Issue number	3
DOIs	https://doi.org/10.1007/s11581-017-2240-5
State	Published - 1 Mar 2018

Keywords

Hybrid electrode materials
Hydrothermal
Mesoporous carbon spheres
Nickel hydroxide nanoparticles
Supercapacitor

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10.1007/s11581-017-2240-5

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abstract = "Ni(OH)2 nanoparticles were decorated on mesoporous carbon spheres (MPCS) using a simple hard template method. The MPCS were derived from sodium carboxymethyl cellulose. As-prepared MPCS/Ni(OH)2 nanocomposites were used as electrode materials for supercapacitors. These composites exhibited better electrochemical properties than a pristine mesoporous carbon sphere owing to the synergistic effect. However, the increase in Ni(OH)2 is not proportional to the electrochemical performance improvement. The addition of an optimal amount of Ni(OH)2, typically 1:20 by weight (MPCS:NiCl2·6H2O), showed an excellent specific capacitance of 1338.296 F g−1 at a scan rate of 5 mV s−1. These encouraging results indicate excellent potential for the development of highly capacitive energy storage devices for practical applications.",

keywords = "Hybrid electrode materials, Hydrothermal, Mesoporous carbon spheres, Nickel hydroxide nanoparticles, Supercapacitor",

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AU - Kim, Jooheon

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Y1 - 2018/3/1

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AB - Ni(OH)2 nanoparticles were decorated on mesoporous carbon spheres (MPCS) using a simple hard template method. The MPCS were derived from sodium carboxymethyl cellulose. As-prepared MPCS/Ni(OH)2 nanocomposites were used as electrode materials for supercapacitors. These composites exhibited better electrochemical properties than a pristine mesoporous carbon sphere owing to the synergistic effect. However, the increase in Ni(OH)2 is not proportional to the electrochemical performance improvement. The addition of an optimal amount of Ni(OH)2, typically 1:20 by weight (MPCS:NiCl2·6H2O), showed an excellent specific capacitance of 1338.296 F g−1 at a scan rate of 5 mV s−1. These encouraging results indicate excellent potential for the development of highly capacitive energy storage devices for practical applications.

KW - Hybrid electrode materials

KW - Hydrothermal

KW - Mesoporous carbon spheres

KW - Nickel hydroxide nanoparticles

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Correlation between the mesoporous carbon sphere with Ni(OH)₂ nanoparticle contents for high-performance supercapacitor electrode

Abstract

Keywords

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