Morphology evolution of CaMoO₄crystals
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CaMoO₄crystals with ellipsoid, peanut, dumbbell, and notched sphere shapes were synthesized using a simple precipitation reaction. The morphology of CaMoO₄crystals evolved from ellipsoids, through peanut-like structures and dumbbells, to notched spheres with increasing the concentration of Ca²+ and MoO₄²- ions. This morphology evolution of CaMoO₄crystals is attributed to a fractal mechanism. Branched crystal growth started at both ends of the ellipsoids. The peanut-like and dumbbell morphologies were formed by the first and second fractal growths, espectively. Finally, the notched spheres were formed by further fractal growth of dumbbells.
Abstract
CaMoO₄crystals with ellipsoid, peanut, dumbbell, and notched sphere shapes were synthesized using a simple precipitation reaction. The morphology of CaMoO₄crystals evolved from ellipsoids, through peanut-like structures and dumbbells, to notched spheres with increasing the concentration of Ca²+ and MoO₄²- ions. This morphology evolution of CaMoO₄crystals is attributed to a fractal mechanism. Branched crystal growth started at both ends of the ellipsoids. The peanut-like and dumbbell morphologies were formed by the first and second fractal growths, espectively. Finally, the notched spheres were formed by further fractal growth of dumbbells.
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