Effect of electronicwiring on the electrochemical reaction sites in manganese oxide with pseudocapacitive behavior

Seung Beom Yoon, Kwang Chul Roh, Kwang Bum Kim

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The effect of electronic wiring on the electrochemical reaction sites in manganese oxide (MnO2) was studied by electrochemical impedance spectroscopic (EIS) investigation of MnO2/multiwall carbon nanotube (MWCNT) composites with and without added conducting agents. The results helped in confirming the effects of the electrical conductivity of the composite on its electrochemical properties. The electronic wiring in MnO2 influences not only the electron transfer reactions at the surface electrochemical reaction sites but also Na+ ion diffusion in the bulk electrochemical reaction sites. Electronic wiring plays a more important role in deciding the rate capability of MnO2 than does the electrical conductivity of the electrode.

Original languageEnglish
Pages (from-to)H365-H369
JournalJournal of the Electrochemical Society
Volume161
Issue number6
DOIs
Publication statusPublished - 2014

Fingerprint

Manganese oxide
manganese oxides
Electric wiring
wiring
Carbon Nanotubes
electronics
Composite materials
Electrochemical properties
electrical resistivity
composite materials
Carbon nanotubes
Ions
electron transfer
Electrodes
Electrons
carbon nanotubes
impedance
conduction
electrodes
manganese oxide

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

Cite this

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Effect of electronicwiring on the electrochemical reaction sites in manganese oxide with pseudocapacitive behavior. / Yoon, Seung Beom; Roh, Kwang Chul; Kim, Kwang Bum.

In: Journal of the Electrochemical Society, Vol. 161, No. 6, 2014, p. H365-H369.

Research output: Contribution to journalArticle

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