Growth and characterization of carbon-supported MnO2 nanorods for supercapacitor electrode

Raj Kishore Sharma; Hyung Suk Oh; Yong Gun Shul; Hansung Kim

doi:10.1016/j.physb.2007.10.007

Growth and characterization of carbon-supported MnO₂ nanorods for supercapacitor electrode

Raj Kishore Sharma, Hyung Suk Oh, Yong Gun Shul, Hansung Kim

Department of Chemical and Biomolecular Engineering

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

51 Citations (Scopus)

Abstract

Preparation of carbon-supported nano-MnO₂ composite (MnO₂/C) by microemulsion process is reported. As evidenced by high-resolution transmission electron microscopy (HR-TEM) micrographs, highly dispersed MnO₂ nanorods over carbon surface with clear inter-phase boundaries are obtained. X-ray diffraction results of as grown composite powder confirm the αMnO₂ phase of manganese oxide that on annealing at elevated temperatures undergo oxidative transformation to Mn₃O₄ and Mn₂O₃ phases. The small size and high dispersion of MnO₂ nanorods in the composite material exhibited high capacitance of 165 Fg^-1 for MnO₂/C and 458 Fg^-1 for pure MnO₂.

Original language	English
Pages (from-to)	1763-1769
Number of pages	7
Journal	Physica B: Condensed Matter
Volume	403
Issue number	10-11
DOIs	https://doi.org/10.1016/j.physb.2007.10.007
Publication status	Published - 2008 May 1

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/j.physb.2007.10.007

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title = "Growth and characterization of carbon-supported MnO2 nanorods for supercapacitor electrode",

abstract = "Preparation of carbon-supported nano-MnO2 composite (MnO2/C) by microemulsion process is reported. As evidenced by high-resolution transmission electron microscopy (HR-TEM) micrographs, highly dispersed MnO2 nanorods over carbon surface with clear inter-phase boundaries are obtained. X-ray diffraction results of as grown composite powder confirm the αMnO2 phase of manganese oxide that on annealing at elevated temperatures undergo oxidative transformation to Mn3O4 and Mn2O3 phases. The small size and high dispersion of MnO2 nanorods in the composite material exhibited high capacitance of 165 Fg-1 for MnO2/C and 458 Fg-1 for pure MnO2.",

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T1 - Growth and characterization of carbon-supported MnO2 nanorods for supercapacitor electrode

AU - Sharma, Raj Kishore

AU - Oh, Hyung Suk

AU - Shul, Yong Gun

AU - Kim, Hansung

PY - 2008/5/1

Y1 - 2008/5/1

N2 - Preparation of carbon-supported nano-MnO2 composite (MnO2/C) by microemulsion process is reported. As evidenced by high-resolution transmission electron microscopy (HR-TEM) micrographs, highly dispersed MnO2 nanorods over carbon surface with clear inter-phase boundaries are obtained. X-ray diffraction results of as grown composite powder confirm the αMnO2 phase of manganese oxide that on annealing at elevated temperatures undergo oxidative transformation to Mn3O4 and Mn2O3 phases. The small size and high dispersion of MnO2 nanorods in the composite material exhibited high capacitance of 165 Fg-1 for MnO2/C and 458 Fg-1 for pure MnO2.

AB - Preparation of carbon-supported nano-MnO2 composite (MnO2/C) by microemulsion process is reported. As evidenced by high-resolution transmission electron microscopy (HR-TEM) micrographs, highly dispersed MnO2 nanorods over carbon surface with clear inter-phase boundaries are obtained. X-ray diffraction results of as grown composite powder confirm the αMnO2 phase of manganese oxide that on annealing at elevated temperatures undergo oxidative transformation to Mn3O4 and Mn2O3 phases. The small size and high dispersion of MnO2 nanorods in the composite material exhibited high capacitance of 165 Fg-1 for MnO2/C and 458 Fg-1 for pure MnO2.

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Growth and characterization of carbon-supported MnO₂ nanorods for supercapacitor electrode

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