镧
锆
材料科学
氧化镧
离子电导率
无机化学
锆酸盐
退火(玻璃)
氮气
微晶
微观结构
锂(药物)
电导率
氧化物
核化学
化学
冶金
陶瓷
有机化学
物理化学
钛酸酯
内分泌学
医学
电解质
电极
作者
N. Rosenkiewitz,Jörg Schuhmacher,Matthias Bockmeyer,Joachim Deubener
标识
DOI:10.1016/j.jpowsour.2014.12.066
摘要
A nitrogen-free sol–gel synthesis of Al-substituted cubic lithium lanthanum zirconium garnet (c-LLZO) was developed. Polycrystalline powders of c-LLZO of the composition Li6.42Al0.32La3Zr1.91O12.02 were prepared from the molecular mixtures of lithium acetate, lanthanum acetate, zirconium propoxide and aluminum chloride and subsequent annealing of the dried precursor sol at 1000 °C for 7 h free of nitrogen oxide gas emissions. The obtained powders had traces of lithium zirconate (<4 wt%), an ionic conductivity of the order of 10−5 S cm−1 and showed a heterogeneous microstructure, which was assumed to result from early melt formation.
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