Interaction between single-walled carbon nanotubes and chromatography gel during size separation. (24th December 2014)

• Record Type: Journal Article
• Authors: Kim, Duckjong; Ai Li, Cheng; Choi, Kwang-Min
• Is Part Of: Materials research express. Volume 2:Number 1(2015)
• Publication Date: 2014-12-24
• Subjects: separation mechanism -- diameter and length separation -- single-walled carbon nanotubes -- size-exclusion chromatography -- one-column chromatography; Materials science -- Research -- Periodicals; Materials science -- Periodicals; 620.11
• DOI: 10.1088/2053-1591/2/1/015004
• Languages: English
• ISSNs: 2053-1591

Abstract

Abstract: In this study, we investigate the underlying mechanism by which chromatography can be used for the separation of single-walled carbon nanotubes (SWNTs) on the basis of their diameter or length, with a view to optimizing this popular process. Using the knowledge gained through diffusion ordered spectroscopy nuclear magnetic resonance (DOSY NMR) analysis and chromatographic experiments, we demonstrate the feasibility of separating SWNTs on the basis of diameter and length simultaneously within the one chromatography column. These findings are of relevance not just to the understanding of SWNT separation processes, but also to the industrial use of size-separated SWNTs.