Magnetic effects on Li+ extraction/insertion reactions in spinel-type manganese oxides

Y. Kawachi, Iwao Mogi, H. Kanoh, K. Ooi, S. Ozeki

Research output: Contribution to journalArticlepeer-review

Abstract

Magnetic effects on Li+ extraction/insertion reactions in manganese oxides λ-MnO2 were investigated with cyclic voltammetry (CV) and potential step chronoamperometry (PSCA) under magnetic field less than 30 T. The peak currents of CV were increased by magnetic fields, especially in the reduction side. Since the chemical diffusion coefficient of Li+ and the number of electrons involved in a rate-determining step were independent of magnetic fields, magnetic fields may promote the redox reaction and/or increase Li+ concentration at manganese oxide surfaces contact with a solution. The latter means Li+-insertion (adsorption).

Original languageEnglish
Pages (from-to)917-920
Number of pages4
JournalStudies in Surface Science and Catalysis
Volume132
Publication statusPublished - 2001 Jan 1

ASJC Scopus subject areas

  • Catalysis
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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