[15p-D505-1~14] 1.4 Energy conversion, storage, resources and environment

[15p-D505-12] Development of thermoelectric conversion materials from weathered biotite using molten salt treatment.

〇Mitsunori Honda¹, Yui Kaneta¹, Masakazu Muraguchi², Kosetsu Hayakawa², Masato Oda³, Chiaki Iino⁴, Hiroyuki Ishii⁴, Takuya Goto⁵, Tsuyoshi Yaita¹ (1.JAEA MSRC, 2.Hokkaido Univ. of Sci., 3.Wakayama Univ., 4.Univ. of Tsukuba, 5.Doshisha Univ.)

Keywords:clay mineral, weathered biotite, thermoelectric conversion materials

Twelve years have passed since the 1F accident that occurred in 2011, and contaminated soil generated in Fukushima Prefecture is being managed as removed soil. We have focused on the functionality of several crystalline minerals obtained in the process of developing a technology to remove Cs from the removed soil, and are examining their potential as thermoelectric conversion materials. In this study, we report the results of evaluation of thermoelectric properties (electrical conductivity, thermal diffusivity, and Seebeck coefficient) of the crystalline minerals.