[7p-S203-1~13] 17.1 Carbon nanotubes & other nanocarbon materials

4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)

[7p-S203-13] Electronic-type dependence and interfacial dynamics in CNT catalytic etching

〇Keigo Otsuka¹, Shigeo Maruyama^1,2,3 (1.Univ. of Tokyo, 2.Zhejiang Univ., 3.Nagoya Univ.)

Keywords:

carbon nanotubes,etching,interfacial dynamics

We evaluated the electronic-structure dependence of etching reactions—used as a means for sorting carbon nanotubes—both at the single-tube and ensemble levels under catalytic conditions. In contrast to non-catalytic reactions, etching in water vapor and methanol environments showed no significant selectivity between metallic and semiconducting nanotubes, underscoring the importance of distinguishing catalytic and non-catalytic pathways.