Isolation of the (6,5) Single-wall Carbon Nanotube Enantiomers by Surfactant-assisted Aqueous Two-phase Extraction

Published

December 26, 2022

Author(s)

Han Li, Christopher Sims, Rui Kang, Frank Biedermann, Jeffrey Fagan, Benjamin Flavel

Abstract

Sorting single-chirality enantiomers is the ultimate goal for single-wall carbon nanotube (SWCNT) separation. In this work, aqueous two-phase extraction (ATPE) is used to obtain highly purified (>80%) left- and right-handed (6,5) SWCNTs with limited experimental steps. The optimized surfactant conditions are presented, and analytical ultracentrifugation (AUC) and near-infrared photoluminescence (PL) measurements are used to examine the surfactant wrapping and partition coefficient change conditions (PCCCs) required for separation. Our study provides valuable insights into the underlying mechanisms behind surfactant-assisted SWCNT separations and facilitates the use of SWCNT enantiomers in fundamental studies and applications in the future.

Citation

Carbon

Volume

204

Pub Type

Journals

Download Paper

https://doi.org/10.1016/j.carbon.2022.12.071

Local Download

Keywords

SWCNT, carbon nanotube, separations, analytical ultracentrifugation, photoluminescence

Citation

Li, H. , Sims, C. , Kang, R. , Biedermann, F. , Fagan, J. and Flavel, B. (2022), Isolation of the (6,5) Single-wall Carbon Nanotube Enantiomers by Surfactant-assisted Aqueous Two-phase Extraction, Carbon, [online], https://doi.org/10.1016/j.carbon.2022.12.071, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=935753 (Accessed October 10, 2025)