Enhanced electrochemical activity of low temperature solution process synthesized Co3O4 nanoparticles for pseudo-supercapacitors applications

Zhen Yu Li; Phuong T.M. Bui; Do Hwan Kwak; M. Shaheer Akhtar; O. Bong Yang

doi:10.1016/j.ceramint.2015.09.155

Enhanced electrochemical activity of low temperature solution process synthesized Co₃O₄ nanoparticles for pseudo-supercapacitors applications

Zhen Yu Li
, Phuong T.M. Bui
, Do Hwan Kwak
, M. Shaheer Akhtar^*
, O. Bong Yang

^*Corresponding author for this work

Jeonbuk National University

Research output: Contribution to journal › Journal article › peer-review

82 Scopus citations

Abstract

The highly uniform Co₃O₄ nanoparticles (NPs) were synthesized by a low temperature solution process at 70 °C and utilized for pseudo-supercapacitors. The synthesized Co₃O₄ NPs possessed well-crystalline semispherical morphology and were extensively characterized in terms of structural, crystalline and electrochemical properties. The synthesized Co₃O₄ NPs based electrode exhibited a reasonable specific capacitance of ~304 F/g in 1 M KOH aqueous solution. The capacitance was drastically increased to ~480 F/g when the electrode was prepared by mixing Co₃O₄ NPs and super-P carbon. Co₃O₄ NPs based electrodes attained the excellent cycling stability with the retention ratio of ~88.6% after 1000 cycles.

Original language	English
Pages (from-to)	1879-1885
Number of pages	7
Journal	Ceramics International
Volume	42
Issue number	1
DOIs	https://doi.org/10.1016/j.ceramint.2015.09.155
State	Published - 2016.01

Keywords

B. Surfaces
Capacitance
CoO nanoparticles
Electrochemical properties
Supercapacitor

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Engineering - Petroleum
Engineering - Chemical

Access to Document

10.1016/j.ceramint.2015.09.155

Cite this

@article{2a1b7caae56a4b72b382616b853ae400,

title = "Enhanced electrochemical activity of low temperature solution process synthesized Co3O4 nanoparticles for pseudo-supercapacitors applications",

abstract = "The highly uniform Co3O4 nanoparticles (NPs) were synthesized by a low temperature solution process at 70 °C and utilized for pseudo-supercapacitors. The synthesized Co3O4 NPs possessed well-crystalline semispherical morphology and were extensively characterized in terms of structural, crystalline and electrochemical properties. The synthesized Co3O4 NPs based electrode exhibited a reasonable specific capacitance of \textasciitilde{}304 F/g in 1 M KOH aqueous solution. The capacitance was drastically increased to \textasciitilde{}480 F/g when the electrode was prepared by mixing Co3O4 NPs and super-P carbon. Co3O4 NPs based electrodes attained the excellent cycling stability with the retention ratio of \textasciitilde{}88.6\% after 1000 cycles.",

keywords = "B. Surfaces, Capacitance, CoO nanoparticles, Electrochemical properties, Supercapacitor",

author = "Li, \{Zhen Yu\} and Bui, \{Phuong T.M.\} and Kwak, \{Do Hwan\} and Akhtar, \{M. Shaheer\} and Yang, \{O. Bong\}",

year = "2016",

month = jan,

doi = "10.1016/j.ceramint.2015.09.155",

language = "English",

volume = "42",

pages = "1879--1885",

journal = "Ceramics International",

issn = "0272-8842",

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TY - JOUR

T1 - Enhanced electrochemical activity of low temperature solution process synthesized Co3O4 nanoparticles for pseudo-supercapacitors applications

AU - Li, Zhen Yu

AU - Bui, Phuong T.M.

AU - Kwak, Do Hwan

AU - Akhtar, M. Shaheer

AU - Yang, O. Bong

PY - 2016/1

Y1 - 2016/1

N2 - The highly uniform Co3O4 nanoparticles (NPs) were synthesized by a low temperature solution process at 70 °C and utilized for pseudo-supercapacitors. The synthesized Co3O4 NPs possessed well-crystalline semispherical morphology and were extensively characterized in terms of structural, crystalline and electrochemical properties. The synthesized Co3O4 NPs based electrode exhibited a reasonable specific capacitance of ~304 F/g in 1 M KOH aqueous solution. The capacitance was drastically increased to ~480 F/g when the electrode was prepared by mixing Co3O4 NPs and super-P carbon. Co3O4 NPs based electrodes attained the excellent cycling stability with the retention ratio of ~88.6% after 1000 cycles.

AB - The highly uniform Co3O4 nanoparticles (NPs) were synthesized by a low temperature solution process at 70 °C and utilized for pseudo-supercapacitors. The synthesized Co3O4 NPs possessed well-crystalline semispherical morphology and were extensively characterized in terms of structural, crystalline and electrochemical properties. The synthesized Co3O4 NPs based electrode exhibited a reasonable specific capacitance of ~304 F/g in 1 M KOH aqueous solution. The capacitance was drastically increased to ~480 F/g when the electrode was prepared by mixing Co3O4 NPs and super-P carbon. Co3O4 NPs based electrodes attained the excellent cycling stability with the retention ratio of ~88.6% after 1000 cycles.

KW - B. Surfaces

KW - Capacitance

KW - CoO nanoparticles

KW - Electrochemical properties

KW - Supercapacitor

UR - https://www.scopus.com/pages/publications/84946606266

U2 - 10.1016/j.ceramint.2015.09.155

DO - 10.1016/j.ceramint.2015.09.155

M3 - Journal article

AN - SCOPUS:84946606266

SN - 0272-8842

VL - 42

SP - 1879

EP - 1885

JO - Ceramics International

JF - Ceramics International

IS - 1

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