Exp. No.

M1712 — Approved

Title of Experiment

Electronic structure of interstitial hydrogen in manganese oxides

Spokesperson(s) for Group

Safety Coordinator(s) for Group

Current Members of Group

Name Institution Status % of research time devoted to experiment
R. Kadono KEK-IMSS Professor
M. Hiraishi KEK-IMSS PDF
A. Koda KEK-IMSS Associate Professor
K.M. Kojima KEK-IMSS Associate Professor
H. Okabe KEK-IMSS Assistant Professor
Hirohiko Sato Chuo Univ. Professor


Manganese dioxide is used in dry batteries to prevent buildup of hydrogen gas bubbles around cathode materials, where Mn ions are believed to play active role in the electrochemistry by changing their valence (Mn4+ to Mn3+). This is against the view of MnO2 as catalyst, and we propose muSR studies to elucidate the electronic structure of interstitial hydrogen in MnO2.