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Synthesis and characterization of Gd2Zr2O7 defect-fluorite oxide nanoparticles via a homogeneous precipitation-solvothermal method

机译:均相沉淀-溶剂热法合成Gd 2 Zr 2 O 7 缺陷型萤石氧化物纳米粒子及其表征

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Defect-fluorite structured Gd2Zr2O7 nanoparticles were successfully synthesized via a homogeneous precipitation-solvothermal method using urea as a precipitant. The obtained nanoparticles were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), Brunauer–Emmett–Teller (BET) analysis and transmission electron microscopy (TEM). Compared to the traditional solvothermal method, this homogeneous precipitation-solvothermal method has the advantage of producing nanoparticles with small grain sizes, a narrow size-distribution, high surface areas and little agglomeration. Particularly, the mean crystallite size of Gd2Zr2O7 obtained by this method is 20–30 nm, providing a great opportunity of using these nanoparticles as starting nano-sized building blocks for low temperature preparation of homogeneous and dense ceramics.
机译:萤石结构的Gd 2 Zr 2 O 7 通过使用尿素作为沉淀剂的均相沉淀-溶剂热法成功地 合成了小颗粒。通过X射线衍射(XRD),傅立叶变换红外光谱(FT-IR),扫描电子显微镜(SEM),Brunauer-Emmett-Teller(BET)分析和透射电子显微镜(TEM)对获得的纳米颗粒进行表征。与传统的溶剂热法相比,这种均匀的沉淀-溶剂热法的优势在于可以生产出粒径小,粒度分布窄,表面积大,团聚少的纳米颗粒。特别地,Gd 2 Zr 2 O 7 为20–30 nm,这提供了将这些纳米颗粒用作起始纳米尺寸构建基块用于低温制备均相和致密陶瓷的巨大机会。

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