Abstract—

The products of reaction between TiCl₄ and NaBH₄ in NaCl/KCl or KBr ionic melts at 973 and 1023 K under an argon pressure of 5 MPa have been characterized by various physicochemical analysis techniques. The results demonstrate that these conditions lead to the formation of TiB₂ nanoparticles with hexagonal symmetry (sp. gr. P6/mmm, AlB₂ structure) and lattice parameters a = 0.3022–0.3025 nm and с = 0.3214–0.3221 nm. The average diameters of the TiB₂ nanoparticles evaluated from electron microscopy, specific surface area, and X-ray diffraction (crystallite size) data for the two synthesis temperatures are ~10 and ~15, ~12 and ~17, and ~5 and ~10 nm, respectively.

中文翻译：

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二硼化钛纳米粒子的合成，结构与性能

摘要-

已经通过各种物理化学分析技术表征了TiCl ₄和NaBH ₄在NaCl / KCl或KBr离子熔体中在973和1023 K下于5 MPa的压力下的反应产物。结果表明，这些条件导致形成的TiB ₂粒子具有六角形对称（比重= P 6 / MMM，ALB ₂结构）和晶格参数一个= 0.3022-0.3025 nm和с = 0.3214-0.3221纳米。TiB ₂的平均直径 通过电子显微镜，比表面积和两个合成温度的X射线衍射（晶体尺寸）数据评估的纳米粒子分别为〜10和〜15，〜12和〜17，〜5和〜10 nm。