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Abstract: In this paper, we report a simple sonochemical method to synthesize PbWO4 dendrites without any templates. The obtained products were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The effect of the pH value, precursor and reaction time on the formation of PbWO4 dendrites was investigated. It is found that the obtained PbWO4 dendrites were composed of clusters of nanorods. It is rational to expect that dendritic structures of other oxides may also be synthesized by this simple method. [Copyright &y& Elsevier]

Abstract: In this paper, we report a simple hydrothermal method to synthesize barium strontium titanate (Ba1−x Sr x TiO3, x =0–1) dendrites without any templates. The obtained products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), electron diffraction (ED), and energy-dispersive X-ray spectroscopy (EDX), respectively. All the samples were identified as cubic perovskite phase by XRD and the obtained Ba1−x Sr x TiO3 (x =0–1) dendrites were single-crystal. The formation process of Ba1−x Sr x TiO3 dendritic structures was also investigated. It is rational to expect that dendritic structures of other perovskite oxides may also be synthesized by this simple method. [Copyright &y& Elsevier]

Abstract: Single-crystal SrTiO3 dendritic nanostructures were synthesized for the first time via a simple hydrothermal method without any surfactant. Structure characterizations suggest that the SrTiO3 dendrites show preferential orientation along [110]. Additionally, it is found that KOH concentration plays an important role in the formation of SrTiO3 dendrites, and the morphology of SrTiO3 crystallites can vary from cubic-like, star-like to dendritic shape. A rational mechanism is proposed to illustrate the growth of SrTiO3 dendrites. [Copyright &y& Elsevier]