Surface modification and functionalization of meso-sized carbon tubes

In this article, the specific surface area (Ssol) and pore size distribution were determined by BET absorption at a low temperature of 77K. The purpose work is to determine level functionality modification meso-sized carbon tubes. According model, was calculated BJH model in material used. morphology mesoporous studied using transmission electron microscopy scanning microscopy. Differential calorimetry thermogravimetric analysis synthesis products performed air leaching conditions. data, amount unstructured forms samples tubes with multi-walled structure decreases several times, from 2.0-8.0% 0.5-2%. Electron confirmed effectiveness annealing. A comparison different methods processing shows advantages nitric acid as modifying agent, since it promotes formation structural fragments most molecules among oxidizing agents used, which are easy use simple washing water easily removed system without structure. Meso-sized processed acid, well first ones, showed stability up 450-500 °C when heated air. Their electronic characteristics, Raman spectra diffraction remained virtually unchanged. method X-ray oxidized indicates almost complete removal metal.