用XANES、x射线粉末衍射和x射线光电子能谱分析Y2.5Ce0.5Fe2.5Ga2.5O12铁酸盐的离子和物相组成

IF 1.8 3区化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Russian Journal of Inorganic Chemistry Pub Date : 2024-11-30 DOI:10.1134/S0036023624603155

A. E. Putkov, Yu. A. Teterin, M. N. Smirnova, E. S. Romanova, G. E. Nikiforova, Yu. A. Teterin Jr, A. L. Trigub, V. A. Ketsko

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引用次数: 0

摘要

用XANES法研究了Y2.5Ce0.5Fe2.5Ga2.5O12组成的铁酸盐粉末样品的离子组成，该样品经凝胶燃烧后，在750°С炉中，在≈1 × 10-2 Pa的压力下结晶5h。结果与作者先前获得的x射线粉末衍射和x射线光电子能谱（XPS）数据进行了比较。结果表明，根据x射线粉末衍射数据，Y2.5Ce0.5Fe2.5Ga2.5O12为单相，但根据XANES和XPS的结果，样品Ce4+中的Ce3+光谱同时存在于体积和晶体表面。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

$Analysis of Ion and Phase Composition of Ferrogranate Y2.5Ce0.5Fe2.5Ga2.5O12 by XANES, X-ray Powder Diffraction, and X-ray Photoelectron Spectroscopy Methods$

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Analysis of Ion and Phase Composition of Ferrogranate Y2.5Ce0.5Fe2.5Ga2.5O12 by XANES, X-ray Powder Diffraction, and X-ray Photoelectron Spectroscopy Methods

The ionic composition of ferrogranate powder samples of composition Y_2.5Ce_0.5Fe_2.5Ga_2.5O₁₂ obtained by gel combustion followed by crystallization at 750°С in a furnace for 5 h at a pressure of ≈ 1 × 10^–2 Pa has been studied by XANES method. The results are compared with the X-ray powder diffraction and X-ray photoelectron spectroscopy (XPS) data obtained by the authors earlier. It is shown that according to X-ray powder diffraction data, ferrogranate Y_2.5Ce_0.5Fe_2.5Ga_2.5O₁₂ is single-phase, but according to the results of XANES and XPS, spectroscopy along with Ce³⁺ in the sample Ce⁴⁺ is present both in the volume and on the surface of crystallites.

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来源期刊

Russian Journal of Inorganic Chemistry 化学-无机化学与核化学

CiteScore

3.10

自引率

38.10%

发文量

237

审稿时长

3 months

期刊介绍： Russian Journal of Inorganic Chemistry is a monthly periodical that covers the following topics of research: the synthesis and properties of inorganic compounds, coordination compounds, physicochemical analysis of inorganic systems, theoretical inorganic chemistry, physical methods of investigation, chemistry of solutions, inorganic materials, and nanomaterials.