Near-infrared spectrofluorimetric analysis (NIR-SFA) of single-walled carbon nanotubes (SWCNTs) has demonstrated utility for both production level R&D as well as applications development. In post-synthesis processing of SWCNTs, such as functionalization and/or separations, NIR-SFA allows for the (n,m) structures of a sample to be identified and monitored during the progress of a chemical reaction or separation experiment. To achieve the time resolutions necessary for real-time or near real-time analysis, single-wavelength excitation by diode lasers is coupled with a fast NIR detection system. System designs and optimization will be presented, in addition to a discussion of initial datasets for a SWCNT separation and monitoring of (n,m) specific kinetics.

Understanding single-walled carbon nanotube separations and chemical functionalization using near-infrared spectrofluorimetric analysis

247th National Meeting (2014)

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