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

Research output: Contribution to journalArticle

16 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)1595-1598
Number of pages4
JournalSurface and Coatings Technology
Volume205
Issue number5
DOIs
Publication statusPublished - Nov 25 2010
Externally publishedYes

Fingerprint

Manganese oxide
Multiwalled carbon nanotubes (MWCN)
manganese oxides
Oxide films
oxide films
carbon nanotubes
heat treatment
Capacitance
capacitance
Heat treatment
sol-gel processes
Manganese
manganese oxide
Sol-gel process
manganese
acetates
Acetates
templates
heat

Keywords

  • Manganese oxide
  • MWCNTs
  • Pseudocapacitance
  • Sol-gel process
  • Supercapacitor

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Pseudocapacitive performance of hybrid manganese oxide films with multiwalled-CNT additions. / Lin, C. K.; Wu, C. H.; Tsai, C. Y.; Chen, C. Y.; Wang, S. C.

In: Surface and Coatings Technology, Vol. 205, No. 5, 25.11.2010, p. 1595-1598.

Research output: Contribution to journalArticle

Lin, C. K. ; Wu, C. H. ; Tsai, C. Y. ; Chen, C. Y. ; Wang, S. C. / Pseudocapacitive performance of hybrid manganese oxide films with multiwalled-CNT additions. In: Surface and Coatings Technology. 2010 ; Vol. 205, No. 5. pp. 1595-1598.
@article{496e22ab935f47409d699616d4ebcd39,
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 = "Manganese oxide, MWCNTs, 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.}",
year = "2010",
month = "11",
day = "25",
doi = "10.1016/j.surfcoat.2010.07.054",
language = "English",
volume = "205",
pages = "1595--1598",
journal = "Surface and Coatings Technology",
issn = "0257-8972",
publisher = "Elsevier",
number = "5",

}

TY - JOUR

T1 - Pseudocapacitive performance of hybrid manganese oxide films with multiwalled-CNT additions

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 - Manganese oxide

KW - MWCNTs

KW - Pseudocapacitance

KW - Sol-gel process

KW - Supercapacitor

UR - http://www.scopus.com/inward/record.url?scp=78649947152&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78649947152&partnerID=8YFLogxK

U2 - 10.1016/j.surfcoat.2010.07.054

DO - 10.1016/j.surfcoat.2010.07.054

M3 - Article

AN - SCOPUS:78649947152

VL - 205

SP - 1595

EP - 1598

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

SN - 0257-8972

IS - 5

ER -