The 78th JSAP Autumn Meeting, 2017

Presentation information

Oral presentation

17 Nanocarbon Technology » 17.1 Carbon nanotubes & other nanocarbon materials

[7a-C11-1~12] 17.1 Carbon nanotubes & other nanocarbon materials

Thu. Sep 7, 2017 9:00 AM - 12:15 PM C11 (Office 1)

Hiromichi Kataura(AIST), Takahiro Yamamoto(Tokyo Univ. of Sci.)

9:15 AM - 9:30 AM

[7a-C11-2] In-situ XANES study on chemical states of transition metal catalysts during SWNT growth

Makoto Kumakura1, Hoshimitsu Kiribayashi1, Takahiro Saida1, Shigeya Naritsuka1, Takahiro Maruyama1 (1.Meijo Univ)

Keywords:Single-walled carbon nanotube, Transition metal catalyst, XANES

Single-walled carbon nanotubes (SWNTs) have been anticipated for applications to electronic devices because SWNTs have superior electrical properties. In general, transition metals such as Fe, Co and Ni are widely used as catalysts for SWNT growth. However, chemical states of catalyst metals during SWCNT growth have not been clarified and controversial, although the reaction process is essential to control the structure of SWNTs. In this study, we carried out in situ X-ray absorption near edge structure (XANES) measurements to clarify the chemical states of Co and Ni catalysts during SWNT growth.