Electrophoretically deposited manganese oxide coatings for supercapacitor application

Chin Yi Chen; Sheng Chang Wang; Chia Yen Lin; Fan Shiong Chen; Chung Kwei Lin

doi:10.1016/j.ceramint.2009.06.025

Electrophoretically deposited manganese oxide coatings for supercapacitor application

Chin Yi Chen, Sheng Chang Wang, Chia Yen Lin, Fan Shiong Chen, Chung Kwei Lin

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

17 Citations (Scopus)

Abstract

In the present study, manganese oxide electrodes with promising pseudo-capacitive properties were prepared by electrophoretic deposition (EPD) using needle-like manganese dioxide powders. As-deposited coating exhibited a porous microstructure where the size and shape of the starting powders can be observed. The electrochemical performance of the as-deposited coating was then evaluated by cyclic voltammetry (CV) up to 300 times. The initial specific capacitance was 236 F/g which dropped to 200 F/g after 25 CV tests, and decreased gradually to 190 F/g thereafter. The electrochemical behaviors during EPD and CV were examined by synchrotron X-ray absorption spectroscopy techniques from which it was deciphered that a reduction reaction from Mn⁴⁺ to Mn³⁺ occurred during EPD concomitant with re-oxidization during repetitive CV cycles.

Original language	English
Pages (from-to)	3469-3474
Number of pages	6
Journal	Ceramics International
Volume	35
Issue number	8
DOIs	https://doi.org/10.1016/j.ceramint.2009.06.025
Publication status	Published - Dec 2009
Externally published	Yes

Keywords

A. Films
B. Spectroscopy
B. X-ray method
E. Capacitors

ASJC Scopus subject areas

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

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title = "Electrophoretically deposited manganese oxide coatings for supercapacitor application",

abstract = "In the present study, manganese oxide electrodes with promising pseudo-capacitive properties were prepared by electrophoretic deposition (EPD) using needle-like manganese dioxide powders. As-deposited coating exhibited a porous microstructure where the size and shape of the starting powders can be observed. The electrochemical performance of the as-deposited coating was then evaluated by cyclic voltammetry (CV) up to 300 times. The initial specific capacitance was 236 F/g which dropped to 200 F/g after 25 CV tests, and decreased gradually to 190 F/g thereafter. The electrochemical behaviors during EPD and CV were examined by synchrotron X-ray absorption spectroscopy techniques from which it was deciphered that a reduction reaction from Mn4+ to Mn3+ occurred during EPD concomitant with re-oxidization during repetitive CV cycles.",

keywords = "A. Films, B. Spectroscopy, B. X-ray method, E. Capacitors",

author = "Chen, {Chin Yi} and Wang, {Sheng Chang} and Lin, {Chia Yen} and Chen, {Fan Shiong} and Lin, {Chung Kwei}",

note = "Funding Information: The authors would like to thank the National Science Council of Taiwan for financially supporting this work under Grant No. NSC 94-2216-E-035-008. The authors also thank the entire staff at NSRRC (Hsinchu, Taiwan, ROC) for the expertise assistance. Copyright: Copyright 2009 Elsevier B.V., All rights reserved.",

year = "2009",

month = dec,

doi = "10.1016/j.ceramint.2009.06.025",

language = "English",

volume = "35",

pages = "3469--3474",

journal = "Ceramics International",

issn = "0272-8842",

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T1 - Electrophoretically deposited manganese oxide coatings for supercapacitor application

AU - Chen, Chin Yi

AU - Wang, Sheng Chang

AU - Lin, Chia Yen

AU - Chen, Fan Shiong

AU - Lin, Chung Kwei

N1 - Funding Information: The authors would like to thank the National Science Council of Taiwan for financially supporting this work under Grant No. NSC 94-2216-E-035-008. The authors also thank the entire staff at NSRRC (Hsinchu, Taiwan, ROC) for the expertise assistance. Copyright: Copyright 2009 Elsevier B.V., All rights reserved.

PY - 2009/12

Y1 - 2009/12

N2 - In the present study, manganese oxide electrodes with promising pseudo-capacitive properties were prepared by electrophoretic deposition (EPD) using needle-like manganese dioxide powders. As-deposited coating exhibited a porous microstructure where the size and shape of the starting powders can be observed. The electrochemical performance of the as-deposited coating was then evaluated by cyclic voltammetry (CV) up to 300 times. The initial specific capacitance was 236 F/g which dropped to 200 F/g after 25 CV tests, and decreased gradually to 190 F/g thereafter. The electrochemical behaviors during EPD and CV were examined by synchrotron X-ray absorption spectroscopy techniques from which it was deciphered that a reduction reaction from Mn4+ to Mn3+ occurred during EPD concomitant with re-oxidization during repetitive CV cycles.

AB - In the present study, manganese oxide electrodes with promising pseudo-capacitive properties were prepared by electrophoretic deposition (EPD) using needle-like manganese dioxide powders. As-deposited coating exhibited a porous microstructure where the size and shape of the starting powders can be observed. The electrochemical performance of the as-deposited coating was then evaluated by cyclic voltammetry (CV) up to 300 times. The initial specific capacitance was 236 F/g which dropped to 200 F/g after 25 CV tests, and decreased gradually to 190 F/g thereafter. The electrochemical behaviors during EPD and CV were examined by synchrotron X-ray absorption spectroscopy techniques from which it was deciphered that a reduction reaction from Mn4+ to Mn3+ occurred during EPD concomitant with re-oxidization during repetitive CV cycles.

KW - A. Films

KW - B. Spectroscopy

KW - B. X-ray method

KW - E. Capacitors

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DO - 10.1016/j.ceramint.2009.06.025

M3 - Article

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VL - 35

SP - 3469

EP - 3474

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

IS - 8

ER -

Electrophoretically deposited manganese oxide coatings for supercapacitor application

Abstract

Keywords

ASJC Scopus subject areas

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