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Carbon nitride powders were rapidly synthesized at low temperature via the chemical metathesis reaction between CaCN 2 and C 2 Cl 6 . X-ray diffraction results confirm the formation of crystalline graphitic carbon nitride. Besides the dominant morphology of nanoparticles, flakes, nanorods, hollow and solid spheres can be observed by transmission electron microscopy. The absorption...
Si 3 N 4 dendritic crystals with coexisting α and β polymorphs have been synthesized by a rapid metathesis reaction between SiCl 4 and slightly excessive NaN 3 at an initial reaction temperature of 100°C. The growth of the branches is perpendicular to the trunks. The formation of the dendrites can be ascribed to the vapor–solid mechanism. Reaction conditions, such as...
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