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Synthesis and characterization of branched yttrium hydroxide fluoride microcrystals with hierarchical tubular structure 被引量:1
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作者 田俐 蒋文韬 +1 位作者 孙起亮 刘金 《Journal of Rare Earths》 SCIE EI CAS CSCD 2012年第4期378-382,共5页
Hexagonal yttrium hydroxide fluoride microcrystals were prepared by a two-step hydrothermal routte using yttrium nitrate, sodium hydroxide and sodium fluoride as raw materials to react in propanetriol solvent. The sam... Hexagonal yttrium hydroxide fluoride microcrystals were prepared by a two-step hydrothermal routte using yttrium nitrate, sodium hydroxide and sodium fluoride as raw materials to react in propanetriol solvent. The samples were characterized by powder X-ray diffraction (XRD), energy dispersive spectrum (EDS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier trans- form infrared spectroscopy (FT-1R), thermogravimetre and differential-thermogravimetric analysis (TG-DTA), which revealed that Y(OH)2.14F0.86 microerystals were multi-branched and that the branches of Y(OH)2A4F0.86 microcrystals were composed of hierarchical tubes. This novel multi-branched and intriguing hierarchical tubular structure of yttrium hydroxide fluoride maybe has a potential application in photoelectric crystals. The formation of branched Y(OH)2.14F0.86 microcrystals with hierarchical tubular structure were due to the substitution reaction and Oswald ripening. 展开更多
关键词 hydrothermal synthesis yttrium hydroxide fluoride branched microcrystals rare earths
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