Fluoride ion conducting behavior in nonstoichiometric lanthanum oxyfluoride
Fluoride ion conducting behavior in nonstoichiometric lanthanum oxyfluoride
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非化学计量氟氧化镧中氟离子的传导行为
DOI:
10.1016/j.ceramint.2022.10.079
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发表时间:
2023
影响因子:
5.2
通讯作者:
Imanaka Nobuhito
中科院分区:
文献类型:
--
作者:
Momai Mizuki;Tamura Shinji;Imanaka Nobuhito
Nonstoichiometric lanthanum oxyfluorides, LaO1−xF1+2x(0 ≤x≤ 0.5) and Sr2+-doped La1−ySryO0.6−x−0.5yF1.8+2x(0 ≤x≤ 0.2, 0 ≤y≤ 0.4), were investigated as potential candidates for fluoride ion (F−) conductors. Although stoichiometric LaOF has been reported to exhibit a phase transition between the tetragonal α-phase (space group:P4/nmm) and trigonal β-phase (R-3m), such a phase transition was successfully suppressed by introducing excess F−ions into the lattice of lanthanum oxyfluoride. Furthermore, the introduction of excess F−ions, also improved the-conducting properties of the oxyflouride lattice. Among the various samples investigated, it was observed that, the F−ion conductivity of La0.7Sr0.3O0.4F1.9(x= 0.05,y= 0.3) was the highest, with a value of 2.9 × 10−4S cm−1at 300 °C, approximately 930 times higher than that of stoichiometric LaOF.
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影响因子:
1.2
作者:
V. Kavun;N. Uvarov;A. Slobodyuk;O. Brovkina;L. A. Zemnukhova;V. Sergienko
通讯作者:
V. Sergienko
影响因子:
1.9
作者:
Grenier, Antonin;Gutierrez, Ana Gabriela Porras;Dambournet, Damien
通讯作者:
Dambournet, Damien
DOI:
--
发表时间:
1971
期刊:
影响因子:
--
作者:
K. Niihara;S. Yajima
通讯作者:
S. Yajima
影响因子:
6.2
作者:
T. Petzel;V. Marx;B. Hormann
通讯作者:
B. Hormann
影响因子:
3.9
作者:
J. Fergus;H. P. Chen
通讯作者:
H. P. Chen