A. A. Dyshin, M. S. Kuzmikov, A. M. Kolker, M. G. Kiselev
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引用次数: 0
Abstract
A method for obtaining of carboxylated single-walled carbon nanotubes suspensions (SWNT) in a number of amide solvents is described. Using Raman spectroscopy, the “dissolving” and dispersing powers of solvents (N,N-dimethylacetamide, 2-pyrrolidone, and N-methylpyrrolidone) have been studied It was shown that N,N-dimethylacetamide is the best solvent among studied in this work for obtaining stable suspensions of carboxylated single-walled carbon nanotubes. The diameters of individual nanotubes prevailing in the suspension, as well as the degree of dispersion were estimated from the data obtained by deconvolution of characteristic spectral bands (radial “breathing” modes). Our estimation shows the presence of about 92% of individual nanotubes in the suspensions with N,N-dimethylacetamide, which is a remarkable result.
期刊介绍：
Russian Journal of Physical Chemistry A. Focus on Chemistry (Zhurnal Fizicheskoi Khimii), founded in 1930, offers a comprehensive review of theoretical and experimental research from the Russian Academy of Sciences, leading research and academic centers from Russia and from all over the world.
Articles are devoted to chemical thermodynamics and thermochemistry, biophysical chemistry, photochemistry and magnetochemistry, materials structure, quantum chemistry, physical chemistry of nanomaterials and solutions, surface phenomena and adsorption, and methods and techniques of physicochemical studies.
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