Carbon nanotube production catalyst, carbon nanotube and its production method

Able to product high purity single chirality CNT at low cost

Overview

　Carbon nanotube (CNT) is a graphene cylindrical sheet consisting of six-membered ring of carbon. It is known that the CNT axial winding of graphene (chirality) determines the electronic state, such as metallicity, semiconductivity and band gap (BG).
　The production of CNT with high chiral purity requires a complex process that includes the wet process such as separation and impurity removal.
　This invention is about a simple method for synthesizing semiconductor type (BG>1eV) single layer CNT with extremely high chiral purity (over 90%), which does not require a process to increase chiral purity and which has low production cost.

Comparison of the invention with already reported example

Product Application

・Transistor, sensor, etc./ Electronic device and nano electronic material
・Coating type semiconductor, CNT ink, etc./ Printed electronic material
・Bio imaging / Medical field

Related Works

[1] B. Xu, T. Kaneko, Y. Shibuta, T. Kato, Scientific Reports 7, 11149-1-9 (2017).

IP Data

IP No.　 ： PCT/JP2021/035526
Inventor ： KATO Toshiaki, KANEKO Toshiro
keyword ： Material, Electronics, Hardware