期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 735, 期 -, 页码 1885-1892出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.11.302
关键词
Impedance spectroscopy; AC conductivity; Modulus formalism
资金
- Tunisian Ministry of Higher Education and Scientific Research
The LiNiV0.5P0.5O4 compound is prepared using a solid-state reaction method. The X-ray diffraction studied and found to be an orthorhombic system and Pnma space group. The spectra follow the Arrhenius law with two activation energy the first in the region of temperatures before 621 K (Region I) and the second in the region after 621 K (Region II). An agreement between the experimental and theoretical results are discussed and it is suggested that the ac conductivity can be explained by the correlated barrier hopping (CBH) and non-overlapping small polaron tunneling model (NSPT) in region I and II, respectively. Moreover, the value of activation energy for the bulk obtained from the analysis of equivalent circuit and modulus relaxation confirms that the transport is not due to a simple hopping mechanism and that the ion transport is probably due to the hopping of Li+ ions. (C) 2017 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据