Equilibria in the liquid system V2O5–V2O4 at temperatures up to 1130 K

1976 ◽  
Vol 54 (12) ◽  
pp. 1967-1970 ◽  
Author(s):  
Andrew Block-Bolten
Keyword(s):  
Solid Electrolyte ◽  
Solid Solutions ◽  
Oxygen Pressure ◽  
Closed System ◽  
Reference Electrode ◽  
Liquid System ◽  
Equilibrium Oxygen Pressure ◽  
Solid Electrolyte Cell ◽  
Liquid Solutions ◽  
Equilibrium Oxygen

The equilibrium oxygen pressure in the V2O–V2O4 system from temperatures near melting, up to 1130 K has been measured. A closed system solid electrolyte cell with a Ni/NiO reference electrode was used. The results of the present investigation for liquid solutions consistently extend those reported for solid solutions.

Order-disorder phase transition of the Cu(001) surface under equilibrium oxygen pressure

2007 ◽  
Vol 76 (24) ◽  
Author(s):  
H. Iddir ◽  
D. D. Fong ◽  
P. Zapol ◽  
P. H. Fuoss ◽  
L. A. Curtiss ◽  
...  
Keyword(s):  
Phase Transition ◽  
Oxygen Pressure ◽  
Disorder Phase Transition ◽  
Equilibrium Oxygen Pressure ◽  
Equilibrium Oxygen

Stability of the α-RbCu4Cl3I2 solid-electrolyte cell

1983 ◽  
Vol 2 (6) ◽  
pp. 1977-1981 ◽  
Author(s):  
A. Turković ◽  
B. Gržeta-Plenković ◽  
B. Etlinger
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolyte Cell

Soot sensor based on a porous solid electrolyte cell

1993 ◽  
Vol 16 (1-3) ◽  
pp. 249-251 ◽  
Author(s):  
V. Schüle ◽  
G. Baier ◽  
A. Vogel
Keyword(s):  
Solid Electrolyte ◽  
Porous Solid ◽  
Solid Electrolyte Cell

Examples of the Practical Use of Non-Stoichiometric Compounds

1994 ◽  
Author(s):  
Koji Kosuge
Keyword(s):  
Solid State ◽  
Oxygen Partial Pressure ◽  
Partial Pressure ◽  
Oxygen Pressure ◽  
Closed System ◽  
Electromotive Force ◽  
Solid Electrolytes ◽  
Coulometric Titration ◽  
Preparation Methods ◽  
Basic Characteristics

In this chapter, we describe four kinds of non-stoichiometric compound, which are or will be in practical use, from the viewpoint of preparation methods or utility. As a first example, the solid electrolyte (ZrO2)0.85(CaO)0.15 is described, which are discussed in Sections 1.4.6–1.4.8 from the viewpoint of basic characteristics. The second example is the magnetic material Mn–Zn ferrite, for which the control of non-stoichiometry and the manufacturing process will be described. Then the metal hydrides or hydrogen absorbing alloys, which are one of the most promising materials for storing and transporting hydrogen in the solid state, are described, mainly focusing on the phase relation. Finally, we describe the relation between the control of composition and the growth of a single crystal of the semiconductive compound GaAs, which is expected to give electronic materials for 1C and LSI etc. Solid electrolytes, which show ionic conductivity in the solid state, are considered to be potential materials for practical use, some are already used as mentioned below. Solid electrolytes have characteristic functions, such as electromotive force, ion selective transmission, and ion omnipresence. Here we describe the practical use of calcia stabilized zirconia (CSZ), (ZrO2)0.85(CaO)0.15, the structure and basic properties of which are discussed in detail in Sections 1.4.5–1.4.8. The most simple practical application of CSZ is for the gauge of oxygen partial pressure, as mentioned in Sections 1.4.7 and 1.4.8. The oxygen partial pressure P2o2 in the closed system as shown in Fig. 3.1 can be measured, taking the air as the standard oxygen pressure P1o2. The electromotive force (EMF) of this concentration cell is expressed as . . . E = (RT/4F)ln(P1o2/ P2o2) . . . This principle is applied in the measurement of oxygen partial pressure in laboratory experiments and of the oxygen activity of slag in refineries. Based on the principle of coulometric titration (see Section 1.4.8), the oxygen partial pressure of a closed system can be kept constant by feedback of the EMF, in the oxygen pressure range 1 to 10−7 atm. By use of this closed system, investigations on redox reactions of metals and also enzyme reactions have been carried out.

scholarly journals Fluorite-Type Solid Solutions in the System Y-Ta-O-N: A Nitrogen-Rich Analogue to Yttria-Stabilized Zirconia (YSZ)

2006 ◽  
Vol 61 (6) ◽  
pp. 660-664 ◽  
Author(s):  
H. Schilling ◽  
H. Wolff ◽  
R. Dronskowski ◽  
M. Lerch
Keyword(s):  
Fuel Cells ◽  
Solid Electrolyte ◽  
Solid Solutions ◽  
Vacancy Concentration ◽  
Anion Vacancy ◽  
Yttria Stabilized Zirconia ◽  
Stabilized Zirconia ◽  
X Ray ◽  
Fluorite Type

Fluorite-type phases in the system Y-Ta-O-N have been prepared by ammonolysis of Y-Ta-O precursors. X-ray powder patterns show unusual asymmetrical reflection profiles explained by DFT and MD methods. The anion vacancy concentration of some of these oxynitrides is similar to that of yttria-doped zirconia, commercially used as solid electrolyte in fuel cells. Hence, these compounds are interesting candidates for mixed oxygen-nitrogen superion conductors

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