| Journal Title /掲載ジャーナル名 |
Carbon |
| Publication Year and Month /掲載年月 |
May, 2023 |
| Paper Title /論文タイトル |
Safe and damege-less dry purification of carbon nanotubes using FeC1₃Vapor |
| DOI /論文DOI |
10.1016/j.carbon.2023.118171 |
| Author of Waseda University /本学の著者 |
NODA, Suguru(Professor, Faculty of Science and Engineering, School of Advanced Science and Engineering):Corresponding Author, Last Author |
| Related Websites /関連Web |
– |
| Abstract /抄録 |
The FeCl3-vapor treatment was proposed and developed for the purification of carbon nanotubes (CNTs). The FeCl3-vapor treatment combined with vacuum heating at 1000 °C efficiently removed various catalysts (Fe, Ni, Y, Mg, and Al) from single-wall and multi-wall CNTs. No damage was found in the purified CNTs with retained/enhanced G-band to D-band intensity ratios in Raman spectroscopy and elevated combustion temperatures in thermogravimetric analysis. Even if vapors of metal chlorides leak, they show low vapor pressure at ambient temperature and turn solid, significantly reducing the hazard. A safe and damage-less dry-purification method will promote various practical applications of CNTs. |
