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l-Cysteine-Assisted Tunable Synthesis of PbS of Various Morphologies

Xiong, Shenglin ; Xi, Baojuan ; Xu, Dechen ; Wang, Chengming ; Feng, Xiaoming ; Zhou, Hongyang ; Qian, Yitai

Journal of physical chemistry. C, 2007-11, Vol.111 (45), p.16761-16767 [Periódico revisado por pares]

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Título:
l-Cysteine-Assisted Tunable Synthesis of PbS of Various Morphologies
Autor: Xiong, Shenglin ; Xi, Baojuan ; Xu, Dechen ; Wang, Chengming ; Feng, Xiaoming ; Zhou, Hongyang ; Qian, Yitai
É parte de: Journal of physical chemistry. C, 2007-11, Vol.111 (45), p.16761-16767
Notas: ark:/67375/TPS-KDPXGKZW-X
istex:D3A751CC49E8331F5673D917B3190B94FE74E875
Descrição: This article describes a facile l-cysteine-assisted solvothermal method in a mixed solution made of ethylenediamine (en) and distilled water for the large-scale synthesis of various PbS 1D and 3D novel nanostructures. By varying process parameters such as the molar ratio of Pb(OAc)2 to l-cysteine (reactants), the volume ratio of water to ethylenediamine, and the reaction temperature, a variety of 3D architectural structures and a 1D wirelike structure can be controllably synthesized in large quantities. On the basis of early arrested growth (nanowires), a reasonable possible mechanism for the growth of PbS dendritic structures has been proposed. The as-prepared PbS products were examined using diverse techniques including X-ray powder diffraction (XRD), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), selected-area electron diffraction, high-resolution TEM, Raman spectroscopy, and photoluminescence emission.
Editor: American Chemical Society
Idioma: Inglês

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