[19a-P1-1~11] 1.4 Energy conversion, storage, resources and environment

[19a-P1-3] Invariant nature of substituted element in metal-hexacyanoferrate

〇Hideharu Niwa^1,2, Wataru Kobayashi^1,2, Takayuki Shibata³, Hiroaki Nitani⁴, Yutaka Moritomo^1,2 (1.Univ. Tsukuba, 2.TREMS, 3.Gunma College, 4.KEK-PF)

Keywords:Sodium-ion secondary battery, XAFS, Prussian blue analogues

By means of the systematic EXAFS and XANES analyses, we found that the local structure and electronic state of guset transition metal (Mg) in metal hexacyanoferrate are essentially the same as those in the pure material. Such an invariant nature observed in M-HCF is in sharp contrast with the layered oxide systems.