کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11026591 | 1666370 | 2019 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Divalent Ni2+ cation conduction in NASICON-type solid
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Divalent Ni2+ cation conduction in NASICON-type solid Divalent Ni2+ cation conduction in NASICON-type solid](/preview/png/11026591.png)
چکیده انگلیسی
Divalent Ni2+ cation-conducting solid electrolytes, (NixHf1âx)4/(4â2x)Nb(PO4)3, were successfully developed by introducing Ni2+ cations into a HfNb(PO4)3 solid exhibiting a three-dimensional NASICON-type structure. Although the HfNb(PO4)3 solid has been reported to be purely a Hf4+ ion conductor, the conducting species was changed to the divalent Ni2+ cation upon Ni2+ doping, due to the facile migration of lower-valence ions in the rigid crystal lattice. In addition, by selecting the well-ordered NASICON-type structure as the mother crystal, the (NixHf1âx)4/(4â2x)Nb(PO4)3 solid electrolytes exhibited lower activation energies and higher Ni2+ cation conductivities than a previously reported NiZr4(PO4)6 solid with the β-Fe2(SO4)3-type structure. Among the (NixHf1âx)4/(4â2x)Nb(PO4)3 solids, (Ni0.06Hf0.94)4/3.88Nb(PO4)3 (xâ¯=â¯0.06) showed the highest Ni2+ ion conductivity, of 2.27â¯Ãâ¯10â4 S·cmâ1 at 600â¯Â°C, which is ca. 23 times higher than that of the NiZr4(PO4)6 solid.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 234, 1 January 2019, Pages 261-263
Journal: Materials Letters - Volume 234, 1 January 2019, Pages 261-263
نویسندگان
Wonrak Lee, Shota Yamauchi, Shinji Tamura, Nobuhito Imanaka,