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Controlled synthesis of hyperbranched cadmium sulfide microanocrystals

机译:超支化硫化镉微/纳米晶体的控制合成

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摘要

A series of novel wurtzite cadmium sulfide (CdS) hyperbranched structures, including dendrites, multipetal flowers, and multipods, were controllably synthesized by a NN-dimethylformamide (DMF) assisted hydrothermal route. US microanostructures of a certain morphology could be selectively produced by only varying the concentration of DMF in the reaction system. The crystal structure, compositional information, and morphological structures were carefully characterized by X-ray diffraction (XRD), X-ray photoelectron spectra (XPS), field emission scanning electronic rnicroscopy (FESEM), transmission electronic microscopy (TEM), and selected area electronic diffraction (SAED). On the basis of the characterization, we propose a formation mechanism of the hyperbranched US crystals. This route provides a facile strategy to fabricate complex hierarchical CdS structures.
机译:通过NN-二甲基甲酰胺(DMF)辅助的水热路线可控制地合成了一系列新颖的纤锌矿硫化镉(CdS)超支化结构,包括树枝状,多瓣花和多荚果。通过仅改变反应体系中DMF的浓度,可以选择性地产生具有某种形态的美国微/纳米结构。通过X射线衍射(XRD),X射线光电子能谱(XPS),场发射扫描电子显微术(FESEM),透射电子显微镜(TEM)和选定区域仔细表征了晶体结构,成分信息和形态结构电子衍射(SAED)。在表征的基础上,我们提出了超支化美国晶体的形成机理。这条路线为制造复杂的分层CdS结构提供了一种简便的策略。

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