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Characterization of the defect structure of oxide nanoparticles with the use of deuterium probes

机译:氘探针用氧化物纳米粒子缺陷结构的表征

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摘要

The method of using deuterium probes was proposed for studying the defect structure of oxide nanoparticles. It was based on the fact that in the course of annealing nanoparticles in deuterium, clusters consisting of point defects and deuterium atoms are formed. The content of the clusters depended on the type of defects. The concentration of deuterium and the content of the clusters were determined by the method of nuclear reactions. The technique was applied to study the defect structures of the nanoparticles of YSZ10, cubic zirconium dioxide doped with yttrium, and TiO2. The nanopowders of YSZ10 and TiO2 were synthesized by means of the laser evaporation of the ceramic target; besides, TiO2 was obtained using the sol-gel method. It was shown that the method of the use of deuterium probes allowed one to reveal the presence of one or several types of point defects in nanoparticles and determine their concentration in the bulk and near the surface of nanoparticles with an accuracy of several percent and sensitivity of about 0.01 at%.
机译:提出了用于研究氧化物纳米粒子的缺陷结构使用氘探针的方法。它是基于,在退火中氘的纳米粒子的过程中,都形成了由点缺陷和氘原子的簇的事实。簇的内容取决于缺陷的类型。氘的浓度和簇的内容是由核反应的方法来确定。该技术应用于研究YSZ10的纳米颗粒的缺陷结构,立方氧化锆掺杂有钇,和TiO 2。 YSZ10和TiO 2的纳米粉末是由陶瓷靶的激光蒸发的方法合成;除此之外,使用溶胶 - 凝胶法得到二氧化钛。结果表明,使用氘探针的方法允许了一个以显示一个或几个类型的点缺陷的存在下,在纳米颗粒和确定其浓度在体和纳米粒子的表面附近与百分之几和灵敏度的精度约0.01原子%以下。

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  • 来源
    《RSC Advances》 |2020年第7期|共7页
  • 作者单位

    Russian Acad Sci Ural Branch MN Mikheev Inst Met Phys 18 S Kovalevskaya St Ekaterinburg 620137 Russia;

    Russian Acad Sci Ural Branch MN Mikheev Inst Met Phys 18 S Kovalevskaya St Ekaterinburg 620137 Russia;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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