Ionic conductivity studies on LiSmO2 by impedance spectroscopy

Abstract

Lithium samarium oxide has been prepared by solid-state reaction method and characterized by X-ray diffraction (XRD) and impedance spectroscopy. XRD pattern of the sample reveals the formation of the sample. The conductivity studies, dielectric studies, and modulus analysis of the samples have been carried out for different temperatures. The bulk conductivity of the sample has been found to be 1.21×10 −5 Scm −1 at 420°C. The temperature variation of the direct current conductivity obeys the Arrhenius relation. The modulus analysis of the sample indicates the non-Debye nature of the sample which corresponds to long-time slow polarization and relaxation of hopping charges.

Investigation of Sm2O3 additive on mechanical and electrical properties of Li2O‐ stabilized β″‐alumina electrolyte

“…According to the XRD patterns (Figure ), when the amount of Sm 2 O 3 reaches 0.4 wt%, some unknown diffraction peaks have been detected and their intensities increase by the amount of used Sm 2 O 3 . Compared with the PDF files of X'Pert High Score software, these XRD peaks can be matched to the crystalline phase of SmLiO 2 (JCPDS 01‐073‐1061) which this phase has a low melting point of about 1000°C …”

“…Compared with the PDF files of X'Pert High Score software, these XRD peaks can be matched to the crystalline phase of SmLiO 2 (JCPDS 01-073-1061) which this phase has a low melting point of about 1000°C. 24 The relationship between lattice parameters and Sm 2 O 3 content is shown in Figure 3. Both the a and the c lattice constants of samples increase with increasing Sm 2 O 3 concentration when Sm 2 O 3 content is higher than 0.2 wt%; the parameters remain almost constant with continued addition.…”

Electrical conductivity and dielectric properties of potassium sulfamate single crystals

“…The electrode effect usually appears at the relatively low-frequency end. It is a typical effect of an ionic conductor and it suggested that the mobile charge carriers are ions which are blocking the metal-sample interface [19][20][21]. The presence or absence of an electrode features provides an indication as to whether ionic conductivity is present.…”

Structural, Optical and Electrical conductivity Studies of Mn2+ Ions Doped PVAMAAEA Polymer Blend Films

“…It is observed that the idealized impedance plane plots of Z ‫||‬ as a function of Z ‫|‬ , i.e. Cole -Cole plots of the films (Z ‫|‬ and Z ‫||‬ denote the real and imaginary parts of the complex impedance Z*), contain a semi circular arc and inclined spike, both of which are characteristic behaviour of ionic conductivity of solids with blocking electrodes [24]. The semicircle indicates the parallel combination of bulk resistance (due to the migration of ions) and bulk capacitance (due to the immobile polymer chains).…”