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Nanodispersed carbon was obtained via high-temperature combustion of acetylene–oxygen mixtures in a flow-through tubular chamber in cyclic detonation waves (“pulsed detonation”) at a constant propagation velocity (Ddet ≈ 2150 m s–1). It was found that the position of a plateau in the curve describing how the detonation velocity depends on the content of oxygen in the starting detonation mixture in the range 15–30% coincides with the range of descending branches of the dependences of the specific adsorption surface area and adsorption of dibutyl phthalate by aggregated particles. Various physicochemical methods of analysis (X-ray diffraction analysis, Raman spectroscopy, high-resolution transmission electron microscopy, etc.) were used to comparatively examine the properties of nanodispersed carbon and of the known industrially produced domestic and foreign brands of technical-grade carbon. The conditions were found in which detonation nanocarbon particles are obtained in a certain range of parameters of micro- and macrostructures with improved morphology and basic electrical properties.

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The structure and electrochemical properties (specific capacitance and electrical resistance) of various grades of carbon black before and after high-temperature gas-chemical treatment were studied. The textural and structural parameters were determined by the methods of low-temperature nitrogen adsorption, dibutyl phthalate absorption, X-ray diffraction analysis, and Raman spectroscopy. The results are compared to the characteristics of Printex XE2-B extra-conductive carbon black.  相似文献   
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