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

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

研究成果: Article査読

抄録

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).

本文言語English
ページ(範囲)917-920
ページ数4
ジャーナルStudies in Surface Science and Catalysis
132
出版ステータスPublished - 2001 1 1

ASJC Scopus subject areas

  • 触媒
  • 凝縮系物理学
  • 物理化学および理論化学
  • 表面、皮膜および薄膜
  • 材料化学

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