[20p-P03-1~11] 9.2 Nanoparticles, Nanowires and Nanosheets

[20p-P03-9] Elucidating correlation between EtOH gas detection and intermediate on Pt-SnO₂ by in situ/operando measurements

〇Keigo Masumoto¹, Jonas Agutaya², Takeshi Shinkai¹, Yusuke Inomata³, Tetsuya Kida³ (1.Kumamoto Univ. GSST, 2.Kumamoto Univ., 3.Kumamoto Univ. FAST)

Keywords:

semiconductor gas sensor,tin dioxide,EtOH gas detection

Pt-added SnO₂ are widely used as a material for semiconductor gas sensors. However, their gas detection mechanism has not been elucidated. In this study, we performed operando observation of Pt-added SnO₂ (Pt-SnO₂) to elucidate the mechanism of EtOH gas detection. The correlation between the change in resistance of Pt-SnO₂ and EtOH oxidation activity on the Pt-SnO₂ surface are suggested.