Ceramic Synthesis and Ionic Conductivity of Nanofluorides (Ce1–xPrx)0.95Sr0.05F2.95 with a Tysonite Structure Prepared by Thermal Decomposition of Trifluoroacetate Precursors

IF 0.8 Q3 Engineering

Nanotechnologies in Russia Pub Date : 2025-07-21 DOI:10.1134/S2635167625600099

N. I. Sorokin, A. V. Koshelev, D. N. Karimov

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Abstract

Nanosized powders (Ce_1–xPr_x)_0.95Sr_0.05F_2.95 (x = 0, 0.5, 1) with a tysonite structure (sp. gr. \(P\bar {3}c1\)) are synthesized by the thermal decomposition of trifluoroacetate precursors in an inert environment. The ceramics are cold pressed, and their X-ray and conductometric properties are studied. It is found that the mixed composition nanoceramics (Ce_0.5Pr_0.5)_0.95Sr_0.05F_2.95 (x = 0.5) demonstrate a higher electrolytic characteristics compared to the compositions with x = 0 and 1. The value of its ionic conductivity is σ_dc = 6.5 × 10^‒3 S/cm at 500 K. The cation composition of the studied solid electrolyte (Ce_0.5Pr_0.5)_0.95Sr_0.05F_2.95 is promising for further optimization of the ceramic synthesis process and application in various electrochemical devices.

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三氟乙酸酯前驱体热分解制备的Tysonite结构纳米氟化物（Ce1-xPrx）0.95Sr0.05F2.95的陶瓷合成及离子电导率

采用三氟乙酸前驱体在惰性环境下热分解的方法合成了具有钛土结构的纳米粉体（Ce1-xPrx）0.95Sr0.05F2.95 (x = 0,0.5, 1) （sp. gr. \(P\bar {3}c1\)）。对陶瓷进行了冷压处理，研究了其x射线和电导性能。结果表明，与x = 0和1的混合组分相比，Ce0.5Pr0.5 0.95Sr0.05F2.95 （x = 0.5）的混合组分具有更高的电解性能。在500 K时，其离子电导率为σdc = 6.5 × 10 - 3s /cm。所研究的固体电解质（Ce0.5Pr0.5）0.95Sr0.05F2.95的阳离子组成为进一步优化陶瓷合成工艺和在各种电化学器件中的应用提供了前景。

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来源期刊

Nanotechnologies in Russia NANOSCIENCE & NANOTECHNOLOGY-

CiteScore

1.20

自引率

0.00%

发文量

期刊介绍： Nanobiotechnology Reports publishes interdisciplinary research articles on fundamental aspects of the structure and properties of nanoscale objects and nanomaterials, polymeric and bioorganic molecules, and supramolecular and biohybrid complexes, as well as articles that discuss technologies for their preparation and processing, and practical implementation of products, devices, and nature-like systems based on them. The journal publishes original articles and reviews that meet the highest scientific quality standards in the following areas of science and technology studies: self-organizing structures and nanoassemblies; nanostructures, including nanotubes; functional and structural nanomaterials; polymeric, bioorganic, and hybrid nanomaterials; devices and products based on nanomaterials and nanotechnology; nanobiology and genetics, and omics technologies; nanobiomedicine and nanopharmaceutics; nanoelectronics and neuromorphic computing systems; neurocognitive systems and technologies; nanophotonics; natural science methods in a study of cultural heritage items; metrology, standardization, and monitoring in nanotechnology.