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Sb2Se3納米線的水熱合成和表征
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Hydrothermal Synthesis and Characterization of Sb2Se3 Nanowires
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    摘要:

    分別以SbCl3和不同的硒源(SeO2、Se粉)為原料，采用水合肼(N2H4·H2O)為還原劑，用水熱法在150 ℃下反應(yīng)24 h后合成Sb2Se3納米粉末。通過X射線粉末衍射(XRD)、透射電鏡(TEM)、場發(fā)射電子掃描電鏡(FESEM)以及高分辨透射電鏡等分析方法對產(chǎn)物的物相成分和形貌等進(jìn)行表征。結(jié)果表明, 產(chǎn)物的結(jié)構(gòu)為正交晶系的Sb2Se3納米晶體，其微觀形貌為一維納米線結(jié)構(gòu)。采用不同硒源合成產(chǎn)物的微觀形貌基本相似，其中以SeO2作為硒源水熱合成的Sb2Se3納米線比以Se粉作為硒源合成的納米線要更加窄而薄，而且納米線尺寸比較均勻一致。納米線晶體沿[001]方向生長，這與Sb2Se3獨(dú)特的晶體結(jié)構(gòu)有著密切的聯(lián)系

    Abstract:

    Sb2Se3 nanowires were synthesized by a hydrothermal method at 150 oC for 24 h using SbCl3 and different Se sources of SeO2 or Se powder as starting materials and N2H4·H2O as reductant. X-ray diffraction (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM) and high-resolution TEM (HRTEM) were applied to characterize the phase distributions, microstructures and grain sizes of the nanostructured product. Results show that the orthorhombic Sb2Se3 nanocrystals are formed during the hydrothermal synthesis process, with the microstructure of one-dimensional nanowires. The morphologies of the synthesized Sb2Se3 nanowires with SeO2 or Se powder as the precursors are similar; however, the growth processes are different due to the different reaction route. The Sb2Se3 nanowires using SeO2 as the precursors are narrower and thinner but more uniform than the products using Se powder as the precursor. The growth of the Sb2Se3 nanowires along the [001] direction is mainly related to the special crystal structure of Sb2Se3

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張艷華,韓 菲,王 澤,徐桂英. Sb2Se3納米線的水熱合成和表征[J].稀有金屬材料與工程,2010,39(10):1820~1824.[Zhang Yanhua, Han Fei, Wang Ze, Xu Guiying. Hydrothermal Synthesis and Characterization of Sb2Se3 Nanowires[J]. Rare Metal Materials and Engineering,2010,39(10):1820~1824.]
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  • 收稿日期:2009-09-23
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