Ionic conductivity and conductivity relaxation of potassium tellurite glasses

2005 ◽  
Vol 202 (6) ◽  
pp. 1088-1095 ◽  
Author(s):  
M. M. El-Desoky ◽  
H. S. Ragab
Keyword(s):  
Ionic Conductivity ◽  
Tellurite Glasses ◽  
Conductivity Relaxation ◽  
Potassium Tellurite

scholarly journals Dielectric and impedance analysis of Li0.5La0.5Ti1-xZrxO3(x = 0.05 and 0.1) ceramics as improved electrolyte material for lithium-ion batteries

2016 ◽  
Vol 34 (3) ◽  
pp. 605-616 ◽  
Author(s):  
K. Vijaya Babu ◽  
V. Veeraiah
Keyword(s):  
Ionic Conductivity ◽  
Lithium Ion Batteries ◽  
Electric Modulus ◽  
Lithium Ion ◽  
Impedance Analysis ◽  
Solid State Reaction Method ◽  
High Ionic Conductivity ◽  
Conductivity Relaxation ◽  
Reaction Method ◽  
X Ray

AbstractThe most attractive property of Li0.5La0.5TiO3 (LLTO) electrolytes is their high ionic conductivity. Studies have shown that LLTO is capable of existing in a state with an ionic conductivity of 10-3 S/cm, which is comparable to liquid electrolytes. In addition to the high ionic conductivity of the material, LLTO is electrochemically stable and able to withstand hundreds of cycles. So, the studies of the solid electrolyte material are very important for the development of lithium-ion batteries. In the present paper, Li0.5La0.5Ti1-xZrxO3 (x = 0.05 and 0.1) have been prepared by a solid-state reaction method at 1300 °C for 6 hours to improve electrolyte materials for lithium-ion batteries. The phase identified by X-ray diffractometry and crystal structure corresponds to pm3m (2 2 1) space group (Z = 1). The frequency and temperature dependence of impedance, dielectric permittivity, dielectric loss and electric modulus of the Li0.5La0.5Ti1-xZrxO3 (x = 0.05 and 0.1) have been investigated. The dielectric and impedance properties have been studied over a range of frequency (42 Hz to 5 MHz) and temperatures (30 °C to 100 °C). The frequency dependent plot of modulus shows that the conductivity relaxation is of non-Debye type.

Structural Characterization and Ionic Conductivity of Metastable Gd2(Ti0.65Zr0.35)2O7 Powders Prepared by Mechanical Milling

2006 ◽  
Vol 972 ◽  
Author(s):  
Antonio F. Fuentes ◽  
Karla J. Moreno ◽  
Jacobo Santamaria ◽  
Carlos Leon ◽  
Ulises Amador
Keyword(s):  
Ionic Conductivity ◽  
Mechanical Milling ◽  
Sintering Temperature ◽  
Ion Dynamics ◽  
Conductivity Relaxation ◽  
Electrical Conductivity Relaxation ◽  
Ion Interactions ◽  
Oxygen Ion ◽  
Fluorite Type ◽  
Powder Phase

AbstractWe analyze in this work the influence of ordering on the oxygen ion dynamics in the ionic conductor Gd2(Ti0.65Zr0.35)2O7, prepared by mechanical milling. As-prepared powder phase presents a metastable anion deficient fluorite-type of structure below 800°C becoming a disordered pyrochlore above this temperature. Such phase transformation implies a significant increase in the ionic conductivity of this material as a result of a systematic decrease in the activation energy for the dc conductivity, from 1.23 to 0.78 eV. Electrical conductivity relaxation is well described by the Kohlrausch-Williams-Watts (KWW) stretched exponential function with the fractional exponent n decreasing systematically with increasing sintering temperature (increasing ordering) as a result of decreasing ion-ion interactions in better ordered samples.

Fundamentals of ionic conductivity relaxation gained from study of procaine hydrochloride and procainamide hydrochloride at ambient and elevated pressure

2012 ◽  
Vol 136 (16) ◽  
pp. 164507 ◽  
Author(s):  
Z. Wojnarowska ◽  
A. Swiety-Pospiech ◽  
K. Grzybowska ◽  
L. Hawelek ◽  
M. Paluch ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Elevated Pressure ◽  
Procaine Hydrochloride ◽  
Conductivity Relaxation

scholarly journals Dataset for correlation in γ-RbAg4I5 between ionic conductivity relaxation and specific heat

Data in Brief ◽  
2019 ◽  
Vol 26 ◽  
pp. 104404
Author(s):  
H. Correa ◽  
Alvaro Garcia Muriel ◽  
D. Peña Lara
Keyword(s):  
Ionic Conductivity ◽  
Specific Heat ◽  
Conductivity Relaxation

Ionic conductivity and structure of thallium tellurite glasses containing AgI

1993 ◽  
Vol 162 (3) ◽  
pp. 244-252 ◽  
Author(s):  
S. Rossignol ◽  
J.M. Réau ◽  
B. Tanguy ◽  
J.J. Videau ◽  
J. Portier ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Tellurite Glasses
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