کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1606653 | 1516231 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fast ion conduction in garnet-type metal borohydrides Li3K3Ce2(BH4)12 and Li3K3La2(BH4)12
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Fast ion conduction in garnet-type metal borohydrides Li3K3Ce2(BH4)12 and Li3K3La2(BH4)12 Fast ion conduction in garnet-type metal borohydrides Li3K3Ce2(BH4)12 and Li3K3La2(BH4)12](/preview/png/1606653.png)
چکیده انگلیسی
Complex hydrides are a family of compounds which have attracted a lot of attention in the last decade for various clean energy-related purposes, from solid state hydrogen storage to materials suitable in Li-ion batteries. We present two new garnet-type borohydride materials suitable as solid state electrolytes. Li3K3Ce2(BH4)12 and Li3K3La2(BH4)12 show unexpectedly high room temperature Li+ ionic conductivity (compared to the reported isostructural garnet oxide Li-conductor) of ÏLi 3 Ã 10â7 and 6 Ã 10â7 S/cm with corresponding activation energies of Ea = 0.79 and Ea = 0.67 eV, respectively, which result from large bottleneck windows in the conduction path. The effect of heterovalent cation substitution is investigated as means of tailoring ionic conductivity. Doping with divalent Sr2+ and Eu2+ shows that ÏLi can be increased by one order of magnitude in the whole temperature range measured.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 662, 25 March 2016, Pages 388-395
Journal: Journal of Alloys and Compounds - Volume 662, 25 March 2016, Pages 388-395
نویسندگان
M. Brighi, P. Schouwink, Y. Sadikin, R. Äerný,