Star-shaped PbS crystals have been prepared by a novel thioglycolic acid (TGA) assisted hydrothermal method. X-ray diffraction reveals that the PbS crystals are well crystallized, with the cubic rock-salt structure. Transmission electron microscopy and scanning electron microscopy observations show that the PbS crystals are of star-shaped morphology. Furthermore, the mechanism and the critical factors for the TGA-assisted hydrothermal synthesis of star-shaped PbS crystals are preliminary presented.
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Ji et al. (2003) studied this question.
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