High supercapacitive stability of spray pyrolyzed ZnO-added manganese oxide coatings

Chin Yi Chen; Hung Wei Chang; Shao Ju Shih; Chien Yie Tsay; Chi Jung Chang; Chung Kwei Lin

doi:10.1016/j.ceramint.2012.08.037

High supercapacitive stability of spray pyrolyzed ZnO-added manganese oxide coatings

Chin Yi Chen, Hung Wei Chang, Shao Ju Shih, Chien Yie Tsay, Chi Jung Chang, Chung Kwei Lin

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

9 Citations (Scopus)

Abstract

Zinc oxide (ZnO) has recently been reported to exhibit electrochemical supercapacitive properties. We demonstrate, for the first time, a nanocrystalline (3O₄ phase with a nanocrystalline structure. ZnO may dissolve in manganese oxide and inhibit the grain growth of the manganese oxide. Cyclic voltammetry showed that the specific capacitance (SC) of the manganese oxide coating in 1 M Na₂SO ₄ electrolyte increased from 196 F/g to 230 F/g at 25 mV/s for 5 at% ZnO-added manganese oxide. After activation, the cycling efficiency of the composite electrode exhibited a high value of >90% for up to 1200 cycles for all the compositions.

Original language	English
Pages (from-to)	1885-1892
Number of pages	8
Journal	Ceramics International
Volume	39
Issue number	2
DOIs	https://doi.org/10.1016/j.ceramint.2012.08.037
Publication status	Published - Mar 2013

Keywords

Electrophoretic deposition
Manganese oxide
Spray pyrolysis
Zinc oxide

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Materials Chemistry
Surfaces, Coatings and Films
Process Chemistry and Technology

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10.1016/j.ceramint.2012.08.037

Cite this

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title = "High supercapacitive stability of spray pyrolyzed ZnO-added manganese oxide coatings",

abstract = "Zinc oxide (ZnO) has recently been reported to exhibit electrochemical supercapacitive properties. We demonstrate, for the first time, a nanocrystalline (3O4 phase with a nanocrystalline structure. ZnO may dissolve in manganese oxide and inhibit the grain growth of the manganese oxide. Cyclic voltammetry showed that the specific capacitance (SC) of the manganese oxide coating in 1 M Na2SO 4 electrolyte increased from 196 F/g to 230 F/g at 25 mV/s for 5 at% ZnO-added manganese oxide. After activation, the cycling efficiency of the composite electrode exhibited a high value of >90% for up to 1200 cycles for all the compositions.",

keywords = "Electrophoretic deposition, Manganese oxide, Spray pyrolysis, Zinc oxide",

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AU - Chen, Chin Yi

AU - Chang, Hung Wei

AU - Shih, Shao Ju

AU - Tsay, Chien Yie

AU - Chang, Chi Jung

AU - Lin, Chung Kwei

PY - 2013/3

Y1 - 2013/3

N2 - Zinc oxide (ZnO) has recently been reported to exhibit electrochemical supercapacitive properties. We demonstrate, for the first time, a nanocrystalline (3O4 phase with a nanocrystalline structure. ZnO may dissolve in manganese oxide and inhibit the grain growth of the manganese oxide. Cyclic voltammetry showed that the specific capacitance (SC) of the manganese oxide coating in 1 M Na2SO 4 electrolyte increased from 196 F/g to 230 F/g at 25 mV/s for 5 at% ZnO-added manganese oxide. After activation, the cycling efficiency of the composite electrode exhibited a high value of >90% for up to 1200 cycles for all the compositions.

AB - Zinc oxide (ZnO) has recently been reported to exhibit electrochemical supercapacitive properties. We demonstrate, for the first time, a nanocrystalline (3O4 phase with a nanocrystalline structure. ZnO may dissolve in manganese oxide and inhibit the grain growth of the manganese oxide. Cyclic voltammetry showed that the specific capacitance (SC) of the manganese oxide coating in 1 M Na2SO 4 electrolyte increased from 196 F/g to 230 F/g at 25 mV/s for 5 at% ZnO-added manganese oxide. After activation, the cycling efficiency of the composite electrode exhibited a high value of >90% for up to 1200 cycles for all the compositions.

KW - Electrophoretic deposition

KW - Manganese oxide

KW - Spray pyrolysis

KW - Zinc oxide

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High supercapacitive stability of spray pyrolyzed ZnO-added manganese oxide coatings

Abstract

Keywords

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