用中子衍射法测定Rb2UBr6离子导体的晶体结构

IF 0.7 4区 物理与天体物理 Q4 CHEMISTRY, INORGANIC & NUCLEAR Nukleonika Pub Date : 2020-03-01 DOI:10.2478/nuka-2020-0001
K. Małetka, E. Ressouche, Håkan Rundlőf, R. Tellgren, W. Szczepaniak, M. Zabłocka-Malicka
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引用次数: 0

摘要

摘要利用中子粉末衍射技术研究了Rb2UBr6固体电解质的结构与温度的关系。已经确定了低温、室温和高温结构。在4.2–80 K的温度范围内,化合物在P21/c空间群中以单斜晶胞形式结晶。在80K和853K下,化合物在P4/mnc空间群中结晶为四方晶胞。在300K下,晶格常数为a=b=7.745(1)和c=11.064(1)Å。在853–960 K的温度范围内,在Pʒ̄ml空间群中观察到三角相。
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Crystalline structures of Rb2UBr6 ionic conductor determined by neutron diffraction
Abstract The neutron powder diffraction technique has been used for structural studies of Rb2UBr6 solid electrolyte as a function of temperature. The low-, room-, and high-temperature structures have been determined. At the temperature range of 4.2–80 K, the compound crystallizes in a monoclinic unit cell in the P21/c space group. At 80 K and 853 K, the compound crystallizes in a tetragonal unit cell in the P4/mnc space group. At 300 K, the lattice constants are a = b = 7.745(1) and c = 11.064(1) Å. At the temperature range of 853–960 K, a trigonal phase is observed in the Pʒ̄ml space group.
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来源期刊
Nukleonika
Nukleonika 物理-无机化学与核化学
CiteScore
2.00
自引率
0.00%
发文量
5
审稿时长
4-8 weeks
期刊介绍: "Nukleonika" is an international peer-reviewed, scientific journal publishing original top quality papers on fundamental, experimental, applied and theoretical aspects of nuclear sciences. The fields of research include: radiochemistry, radiation measurements, application of radionuclides in various branches of science and technology, chemistry of f-block elements, radiation chemistry, radiation physics, activation analysis, nuclear medicine, radiobiology, radiation safety, nuclear industrial electronics, environmental protection, radioactive wastes, nuclear technologies in material and process engineering, radioisotope diagnostic methods of engineering objects, nuclear physics, nuclear reactors and nuclear power, reactor physics, nuclear safety, fuel cycle, reactor calculations, nuclear chemical engineering, nuclear fusion, plasma physics etc.
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