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Controlled synthesis and characterization of nanostructured EuF3 with different crystalline phases and morphologies

机译：具有不同晶相和形态的纳米结构EuF3的受控合成与表征

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摘要

A variety of nanostructured EuF3 with different crystalline phases and morphologies have been prepared via a simple solution route employing the reactions between Eu(NO3)(3)center dot 6H(2)O and fluoride sources XF ( X) K+, H+, NH4+, Na+, Rb+, and Cs+) under ambient conditions. The cations of the fluoride sources were found to determine the crystal structures and morphologies of the as-prepared nanostructured EuF3. X-ray diffraction (XRD) showed that the reaction of Eu(NO3)(3)center dot 6H(2)O with KF or HF yielded nanostructured EuF3 with hexagonal structure, while orthorhombic EuF3 crystals were obtained in the reactions with NH4F, NaF, RbF, or CsF. Different nanostructures including incomplete hollow nanoplates, spherical nanoparticle aggregates, branched tree-like ramified nanostructures, nanorods, and nanowires have been prepared. The luminescent properties of the nanostructured EuF3 have also been studied.
机译：通过使用Eu（NO3）（3）中心点6H（2）O和氟化物源XF（X）K +，H +，NH4 +之间的反应的简单溶液路线，制备了具有不同晶体相和形态的各种纳米结构EuF3， Na +，Rb +和Cs +）。发现氟化物源的阳离子可确定所制备的纳米结构EuF3的晶体结构和形态。 X射线衍射（XRD）表明Eu（NO3）（3）中心点6H（2）O与KF或HF反应生成了具有六角形结构的纳米结构EuF3，而与NH4F，NaF反应得到了正交晶体EuF3晶体。 ，RbF或CsF。已经制备了不同的纳米结构，包括不完全的中空纳米板，球形纳米颗粒聚集体，分支的树状分枝纳米结构，纳米棒和纳米线。还研究了纳米结构EuF3的发光特性。

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