Pseudocapacitive performance of hybrid manganese oxide films with multiwalled-CNT additions

C. K. Lin; C. H. Wu; C. Y. Tsai; C. Y. Chen; S. C. Wang

doi:10.1016/j.surfcoat.2010.07.054

Pseudocapacitive performance of hybrid manganese oxide films with multiwalled-CNT additions

C. K. Lin, C. H. Wu, C. Y. Tsai, C. Y. Chen, S. C. Wang

研究成果: 雜誌貢獻 › 文章 › 同行評審

19 引文斯高帕斯（Scopus）

摘要

In the present study, hybrid manganese oxide films with additions of multiwalled carbon nanotubes (MWCNTs) were prepared by sol-gel process. Manganese acetate was used as the precursors and MWCNTs were added during the process. The effects of MWCNT addition and post heat treatment on the material characteristics and pseudocapacitive performance of the hybrid MWCNT/MnOx films were investigated. Experimental results showed that manganese oxide was composed of Mn3O4 (minor) and Mn2O3 (major) phases after heat treatment. MWCNTs served as the template for the growth of manganese oxide films. Among the hybrid films prepared in the present study, manganese oxide films with 0.05wt.% MWCNT addition heat treated at 350°C exhibited the best electrochemical performance. The maximum specific capacitance was 340.3F/g and retained 280.8F/g (82.5%) after 1000 CV tests. With the addition of MWCNTs, not only the specific capacitance increased but also the reliability improved.

原文	英語
頁（從 - 到）	1595-1598
頁數	4
期刊	Surface and Coatings Technology
卷	205
發行號	5
DOIs	https://doi.org/10.1016/j.surfcoat.2010.07.054
出版狀態	已發佈 - 11月 25 2010
對外發佈	是

ASJC Scopus subject areas

一般化學
凝聚態物理學
材料化學
表面、塗料和薄膜
表面和介面

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title = "Pseudocapacitive performance of hybrid manganese oxide films with multiwalled-CNT additions",

abstract = "In the present study, hybrid manganese oxide films with additions of multiwalled carbon nanotubes (MWCNTs) were prepared by sol-gel process. Manganese acetate was used as the precursors and MWCNTs were added during the process. The effects of MWCNT addition and post heat treatment on the material characteristics and pseudocapacitive performance of the hybrid MWCNT/MnOx films were investigated. Experimental results showed that manganese oxide was composed of Mn3O4 (minor) and Mn2O3 (major) phases after heat treatment. MWCNTs served as the template for the growth of manganese oxide films. Among the hybrid films prepared in the present study, manganese oxide films with 0.05wt.% MWCNT addition heat treated at 350°C exhibited the best electrochemical performance. The maximum specific capacitance was 340.3F/g and retained 280.8F/g (82.5%) after 1000 CV tests. With the addition of MWCNTs, not only the specific capacitance increased but also the reliability improved.",

keywords = "MWCNTs, Manganese oxide, Pseudocapacitance, Sol-gel process, Supercapacitor",

author = "Lin, {C. K.} and Wu, {C. H.} and Tsai, {C. Y.} and Chen, {C. Y.} and Wang, {S. C.}",

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AU - Lin, C. K.

AU - Wu, C. H.

AU - Tsai, C. Y.

AU - Chen, C. Y.

AU - Wang, S. C.

PY - 2010/11/25

Y1 - 2010/11/25

N2 - In the present study, hybrid manganese oxide films with additions of multiwalled carbon nanotubes (MWCNTs) were prepared by sol-gel process. Manganese acetate was used as the precursors and MWCNTs were added during the process. The effects of MWCNT addition and post heat treatment on the material characteristics and pseudocapacitive performance of the hybrid MWCNT/MnOx films were investigated. Experimental results showed that manganese oxide was composed of Mn3O4 (minor) and Mn2O3 (major) phases after heat treatment. MWCNTs served as the template for the growth of manganese oxide films. Among the hybrid films prepared in the present study, manganese oxide films with 0.05wt.% MWCNT addition heat treated at 350°C exhibited the best electrochemical performance. The maximum specific capacitance was 340.3F/g and retained 280.8F/g (82.5%) after 1000 CV tests. With the addition of MWCNTs, not only the specific capacitance increased but also the reliability improved.

AB - In the present study, hybrid manganese oxide films with additions of multiwalled carbon nanotubes (MWCNTs) were prepared by sol-gel process. Manganese acetate was used as the precursors and MWCNTs were added during the process. The effects of MWCNT addition and post heat treatment on the material characteristics and pseudocapacitive performance of the hybrid MWCNT/MnOx films were investigated. Experimental results showed that manganese oxide was composed of Mn3O4 (minor) and Mn2O3 (major) phases after heat treatment. MWCNTs served as the template for the growth of manganese oxide films. Among the hybrid films prepared in the present study, manganese oxide films with 0.05wt.% MWCNT addition heat treated at 350°C exhibited the best electrochemical performance. The maximum specific capacitance was 340.3F/g and retained 280.8F/g (82.5%) after 1000 CV tests. With the addition of MWCNTs, not only the specific capacitance increased but also the reliability improved.

KW - MWCNTs

KW - Manganese oxide

KW - Pseudocapacitance

KW - Sol-gel process

KW - Supercapacitor

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Pseudocapacitive performance of hybrid manganese oxide films with multiwalled-CNT additions

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