Raman spectroscopy study of sodium–lithium cobaltite

详细信息    查看全文

• 作者：A. Semenova ; D. Kellerman ; I. Baklanova ; L. Perelyaeva ; E. Vovkotrub
• 刊名：Chemical Physics Letters
• 出版年：2010
• 出版时间：17 May 2010
• 年：2010
• 卷：491
• 期：4-6
• 页码：169-171
• 全文大小：223 K

文摘

We report on a Raman scattering study of the LiCoO₂, γ-Na_0.7CoO₂ and Li_0.42Na_0.36CoO₂ phases. The Raman spectrum of the ordered cobaltite Li_0.42Na_0.36CoO₂ consists of a set of seven distinct peaks with the wave numbers around 190, 445, 467, 513, 572, 609 and 674 cm⁻¹. It exhibits features of the spectra for LiCoO₂ and γ-Na_0.7CoO₂ and therefore can be considered as a superposition of these two spectra. It may be supposed that in the structure of the double cobaltite the bonding between sodium- and lithium-containing blocks is rather weak.