Structural Change Accompanying Crystallization in the Lithium Ion Conductive Li2S-SiS2-Li3PO4 Oxysulfide Glasses
Structural Change Accompanying Crystallization in the Lithium Ion Conductive Li2S-SiS2-Li3PO4 Oxysulfide Glasses
复制标题
锂离子导电 Li2S-SiS2-Li3PO4 硫氧化物玻璃中伴随结晶的结构变化
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
Y. Miura
中科院分区：
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作者：
A. Hayashi;K. Tadanaga;M. Tatsumisago;T. Minami;Y. Miura
利用固体核磁共振（NMR）和X射线光电子能谱（XPS）分析了（100-x）（0.6Li2S.0.4SiS2）.xLi 3 PO 4氧硫玻璃晶化过程中的结构变化.随着晶化过程的进行，玻璃中独特的四面体结构单元SiOnS 4-n（n = 1，2，3）和POnS 4-n（n=1，2，3）逐渐消失，而SiS 4，SiO 4，PS4和PO 4结构单元逐渐增多。随着晶化过程的进行，非桥连的硫原子和氧原子减少，桥连的氧原子和S2-增加。玻璃和相应的结晶样品之间的大的结构差异解释了在具有x=5的组成的氧硫化物玻璃中发现的高的抗结晶稳定性。
The structural change of the (100-x) (0.6Li 2 S.0.4SiS 2 ).xLi 3 PO 4 oxysulfide glasses during crystallization was analyzed by means of solid-state nuclear magnetic resonance (NMR) and X-ray photoelectron spectroscopy (XPS). The unique tetrahedral units of SiO n S 4-n (n=1, 2, 3) and PO n S 4-n (n=1, 2, 3) present in the glass samples vanished and the SiS 4 , SiO 4 , PS 4 and PO 4 units increased with proceeding of the crystallization process. Nonbridging sulfur and oxygen atoms decreased while bridging oxygens and S 2- increased with proceeding of the crystallization process. Large structural difference between the glass and the corresponding crystallized sample explained the high stability against crystallization found in the oxysulfide glass with the composition of x=5.