[20a-E201-1~10] 17.3 Layered materials

[20a-E201-5] Electrical monitoring of methane oxidation with ultrathin films of transition metal oxide nanosheets.

〇(M2)Yoshiaki Ishihara¹, Wataru Sugimoto², Ryo Nouchi^1,3 (1.Osaka Prefecture Univ, 2.Shinshu Univ, 3.JST-PRESTO)

Keywords:transition metal oxide nanosheets, hydrocarbon oxidation activity, methane oxidation

Methane is a promising molecule as a raw material for obtaining useful chemical products, and the oxidation reaction that cuts the very stable C-H bond is a crucial step. Oxides of transition metals such as iridium are known to possess such a hydrocarbon oxidation activity. In this study, an atomically thin film of IrO₂ nanosheets was employed as the sensing layer to monitor surface chemical reactions, and we succeeded in electrically monitoring the methane oxidation, which has not been achieved so far due to a masking effect of the high electrical conductivity of bulk IrO₂ crystals.