Phase Behavior and Ionic Conduction in the Composite Electrolytes CsH2PO4/SDP⋅2H2O

2021 ◽  
Vol 66 (14) ◽  
pp. 2059-2067
Author(s):  
D. Veer ◽  
P. Kumar ◽  
D. Singh ◽  
D. Kumar ◽  
A. Kumar ◽  
...  
Keyword(s):  
Phase Behavior ◽  
Ionic Conduction ◽  
Composite Electrolytes

Effect of Microstructure on Ionic Conduction of Composite Electrolytes Consisting of Doped Ceria and Carbonates

2017 ◽  
Vol 78 (1) ◽  
pp. 371-376 ◽  
Author(s):  
Kuan-Zong Fung ◽  
Chung-Ta Ni ◽  
Shu-Yi Tsai ◽  
Jhih Yu Tang
Keyword(s):  
Ionic Conduction ◽  
Doped Ceria ◽  
Composite Electrolytes ◽  
Effect Of Microstructure

scholarly journals The best composition of an Y-doped BaZrO3 electrolyte: selection criteria from transport properties, microstructure, and phase behavior

2018 ◽  
Vol 6 (38) ◽  
pp. 18571-18582 ◽  
Author(s):  
Donglin Han ◽  
Tetsuya Uda
Keyword(s):  
Ionic Conductivity ◽  
Phase Behavior ◽  
Transport Properties ◽  
Selection Criteria ◽  
Transport Number ◽  
Ionic Conduction ◽  
High Ionic Conductivity

A Y content of around 20 mol% and a Ba content approaching unity are essential for excellent sinterability, high ionic conductivity, and a high transport number of ionic conduction in Y-doped BaZrO3.

scholarly journals Preparation, Characterization, and Stability of the (1-x) CsH2PO4 + xTiO2 Composite Electrolytes for Fuel Cells

2021 ◽  
Author(s):  
Deshraj Singh ◽  
Pawan Kumar ◽  
Jitendra Singh ◽  
Dharm Veer ◽  
Ram S Katiyar ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Thermal Analysis ◽  
Differential Scanning Calorimetry ◽  
Vapor Deposition ◽  
Ionic Conduction ◽  
Minimum Weight ◽  
Composite Electrolytes ◽  
Scanning Calorimetry ◽  
Dehydration Behavior ◽  
Thermal Stability Of

Abstract Composite Electrolytes (1-x)CsH2PO4/xTiO2(0 ≤ x ≤ 0.4) were prepared and analyzed the structural, thermal, and transport properties. We have investigated the ionic conductivity of the composites electrolyte highly pressurized pellets and found that the conductivity of pure CsH2PO4 (CDP) increased three orders of magnitude at the transition temperature. The conductivity value of the composites is greater than pure CDP after 250°C. Arrhenius plots have confirmed the conductive nature of ionic conduction. The dehydration behavior and thermal stability of the materials were observed in terms of differential scanning calorimetry, thermogravimetric analysis and differential thermal analysis, and found that the minimum weight loss for the composite 0.6CDP/0.4TiO2. The electrodes were prepared with the technique of vapor deposition.

Ionic conduction in polymer composite electrolytes

2016 ◽  
Author(s):  
Tapabrata Dam ◽  
Satya N. Tripathy ◽  
M. Paluch ◽  
S. Jena ◽  
D. K. Pradhan
Keyword(s):  
Polymer Composite ◽  
Ionic Conduction ◽  
Composite Electrolytes

Stress-Induced Ordering in Y203-Stabilized Tetragonal Zr02

1985 ◽  
Vol 43 ◽  
pp. 222-223
Author(s):  
J. Y. Koo ◽  
M. P. Anderson
Keyword(s):  
Electron Diffraction ◽  
Ionic Conduction ◽  
Electron Diffraction Study ◽  
Ceramic Materials ◽  
Bright Field Image ◽  
Transformation Toughening ◽  
Ion Milling ◽  
Thin Foils ◽  
Carbon Coated ◽  
Convergent Beam

Tetragonal Zr02 has been used as a toughening phase in a large number of ceramic materials. In this system, complex diffraction phenomena have been observed and an understanding of the origin of the diffraction effects provides important information on the nature of transformation toughening, ionic conduction, and phase destabilization. This paper describes the results of an electron diffraction study of Y203-stabilized, tetragonal Zr02 polycrystals (Y-TZP).Thin foils from the bulk Y-TZP sample were prepared by careful grinding and cryo ion-milling. They were carbon coated and examined in a Philips 400T/FEG microscope. Fig. 1 shows a typical bright field image of the 100% tetragonal(t) Zr02. The tetragonal structure was identified by both bulk x-ray diffraction and convergent beam electron diffraction (Fig. 2. A local region within a t-Zr02 grain was subjected to an intense electron beam irradiation which caused partial martensitic transformation of the t-Zr02 to monoclinic(m) symmetry, Fig. 3 A.

A transmission electron microscopic study of structural transitions in fast ionic conductors

1987 ◽  
Vol 45 ◽  
pp. 156-157
Author(s):  
R. B. Queenan ◽  
P. K. Davies
Keyword(s):  
Optical Properties ◽  
Ionic Conduction ◽  
Recent Observation ◽  
Ionic Conductivities ◽  
Sodium Aluminate ◽  
Two Dimensions ◽  
Ionic Conductors ◽  
Electron Microscopic ◽  
Transmission Electron ◽  
Trivalent Cations

Na ß“-alumina (Na1.67Mg67Al10.33O17) is a non-stoichiometric sodium aluminate which exhibits fast ionic conduction of the Na+ ions in two dimensions. The Na+ ions can be exchanged with a variety of mono-, di-, and trivalent cations. The resulting exchanged materials also show high ionic conductivities.Considerable interest in the Na+-Nd3+-ß“-aluminas has been generated as a result of the recent observation of lasing in the pulsed and cw modes. A recent TEM investigation on a 100% exchanged Nd ß“-alumina sample found evidence for the intergrowth of two different structure types. Microdiffraction revealed an ordered phase coexisting with an apparently disordered phase, in which the cations are completely randomized in two dimensions. If an order-disorder transition is present then the cooling rates would be expected to affect the microstructures of these materials which may in turn affect the optical properties. The purpose of this work was to investigate the affect of thermal treatments upon the micro-structural and optical properties of these materials.

Phase behavior of cationic and anionic surfactants at low concentrations

1992 ◽  
Vol 50 (1) ◽  
pp. 694-695
Author(s):  
E. Naranjo
Keyword(s):  
Phase Behavior ◽  
Structural Characterization ◽  
Dynamic Systems ◽  
Anionic Surfactants ◽  
Intermolecular Forces ◽  
Stable Form ◽  
Surfactant Mixtures ◽  
Low Concentrations ◽  
Cationic And Anionic Surfactants ◽  
General Method

Equilibrium vesicles, those which are the stable form of aggregation and form spontaneously on mixing surfactant with water, have never been demonstrated in single component bilayers and only rarely in lipid or surfactant mixtures. Designing a simple and general method for producing spontaneous and stable vesicles depends on a better understanding of the thermodynamics of aggregation, the interplay of intermolecular forces in surfactants, and an efficient way of doing structural characterization in dynamic systems.

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