[22p-C201-1~6] 3.8 Terahertz technologies (formerly 3.9)

[22p-C201-5] Terahertz conductivity measurement in a humid atmosphere for the proton-conducting solid electrolyte

〇Hikaru Takehara¹, Masaya Nagai¹, Ryosuke Imakura¹, Yuto Furutani¹, Masaaki Ashida¹, Yuji Okuyama², Yukimune Kani³ (1.Osaka Univ., 2.Miyazaki Univ., 3.Panasonic holdings)

Keywords:Proton-conducting ceramics, THz time-domain spectroscopy

Fuel cells, which have recently attracted attention as clean and highly efficient chemical-electrical energy conversion devices, operate under high temperatures and in the presence of hydrogen as fuels, oxygen in the air, and water as a product. Therefore, the conduction evaluation of their solid electrolytes and electrode materials is performed in an environment with controlled temperature and ambient gases. We report on the proton dynamic behavior of proton-conducting solid electrolytes evaluated by terahertz spectroscopy under controlled ambient gas conditions in the vicinity of the sample.