X-ray absorption and Raman spectroscopy studies of tungstates solid solutions ZncNi1-cWO4 (c=0.0-1.0)

被引：6

作者：

Bakradze, G. ^{[1
]}

Kalinko, A. ^{[1
]}

Kuzmin, A. ^{[1
]}

机构：

[1] Univ Latvia, Inst Solid State Phys, LV-1063 Riga, Latvia

来源：

LOW TEMPERATURE PHYSICS | 2020年 / 46卷 / 12期

基金：

欧盟地平线“2020”;

关键词：

ZnWO4; NiWO4; tungstates; solid solutions; x-ray absorption spectroscopy; Raman spectroscopy; LOCAL-STRUCTURE; TEMPERATURE-DEPENDENCE; ZNWO4; SPECTRA; LUMINESCENCE; PIGMENTS; NIWO4;

D O I：

10.1063/10.0002474

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The influence of thermal disorder and static distortions on the local structure in microcrystalline solid solutions of tungstates ZncNi1-cWO4 with c = 0.0-1.0 was investigated using temperature-dependent (10-300 K) x-ray absorption spectroscopy (XAS) at the W L-3-edge. In addition, the vibrational properties of the solid solutions were studied by Raman spectroscopy. Our results indicate that the formation of solid solutions is accompanied by strong structural relaxations leading to the changes in the [WO6] octahedra distortions, which, in turn, affect the vibrational properties of tungstates. In particular, the frequency and band width of the highest W-O stretching mode at about 900 cm(-1) show distinct composition dependence, following the local structure modifications as revealed by XAS.

引用

页码：1201 / 1205

页数：5

共 57 条

[51] Fabrication and electrochemical investigation of MWO4 (M = Co, Ni) nanoparticles as high-performance anode materials for lithium-ion batteries [J].