New structural characterization of the LixV2O5 system provided by Raman spectroscopy
New structural characterization of the LixV2O5 system provided by Raman spectroscopy
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DOI：
10.1021/cm060540g
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发表时间：
2006-07-25
影响因子：
8.6
通讯作者：
Pereira-Ramos, J. P.
中科院分区：
文献类型：
--
作者：
Baddour-Hadjean, R.;Raekelboom, E.;Pereira-Ramos, J. P.
本文报道了它的拉曼光谱，它是由-相、β相和伽马相组成的LixV2O5粉末。获得了新的指纹，并结合以前报道的电化学和化学锂化态V2O5的指纹进行了讨论。通过X-射线衍射谱和拉曼光谱研究了->；是->；伽马“高温”相变的一种元素，并解释了文献谱中遇到的巨大差异。这些关于LixV2O5相的参考拉曼光谱的知识构成了理解Li/V2O5体系电化学循环行为的基础数据。
The Raman spectra of the is an element of-,delta-, and gamma-LixV2O5 powdered phases are reported. New fingerprints are obtained and discussed in connection with those previously reported for electrochemically and chemically lithiated V2O5. The metastable character of the sigma-phase is explored through the XRD and Raman study of the sigma -> is an element of -> gamma "high temperature" phase transitions and allows explaining the great disparities encountered in the literature spectra. The knowledge of these reference Raman spectra for the LixV2O5 phases constitutes fundamental data for understanding the electrochemical cycling behavior of the Li/V2O5 system.