[1A11-14] Cesium Compounds and Fuel Fabrication Technique

[1A12] Synthesis of CsFeO₂ by powder synthesis method

*Jumpei Imoto¹, Kunihisa Nakajima¹, Masahiko Osaka¹ (1. JAEA)

Keywords:cesium, chemisorption, iron, synthesis

CsFeO₂ could be formed by the chemisorption of Cs on stainless steel during a light water reactor severe accident. In order to elucidate the chemisorption behavior, it is necessary to examine chemical properties of CsFeO₂. Therefore, in this study, the synthesis condition of CsFeO₂ was investigated to prepare a pure sample. It was found from X-ray diffraction analysis that almost single phase CsFeO₂ sample was able to be obtained by heating a mixed powder of cesium hydroxide monohydrate and α-iron oxyhydroxide.