b2044, II.2.3.1 Simple oxide chlorides

2005 ◽  
pp. 52-63
Author(s):  
W. Pies ◽  
A. Weiss
Keyword(s):  
Simple Oxide

scholarly journals Application of Mechanical Activation in Synthesizing Multiferroic Pb(Fe1/2Nb1/2)O3 Powders

2011 ◽  
Vol 56 (4) ◽  
pp. 1015-1020 ◽  
Author(s):  
D. Bochenek ◽  
G. Dercz ◽  
D. Oleszak
Keyword(s):  
Structural Analysis ◽  
Mechanical Activation ◽  
Mossbauer Spectroscopy ◽  
High Energy ◽  
Partial Synthesis ◽  
Oxide Mixture ◽  
High Energy Milling ◽  
Oxide Powders ◽  
Simple Oxide ◽  
Powder Samples

Application of Mechanical Activation in Synthesizing Multiferroic Pb(Fe1/2Nb1/2)O3 Powders In the study, the method of high-energy powder milling - mechanical activation (MA) was used for synthesizing Pb(Fe1/2Nb1/2)O3 (PFN) powders. For the purpose of comparing the influence of high-energy milling on PFN synthesis, two groups of powder samples were used. The first mixture consisting of simple oxide powders; the second one consisting of compound oxide powders. The obtained powders were subjected to structural analysis with the use of XRD and Mőssbauer spectroscopy. Tests revealed that during the process of high-energy milling of initial constituents a partial synthesis of PFN material phases occurs. By comparing the two methods of PFN synthesizing it may be stated that mechanical activation in the case of a simple oxide mixture (PFN1) is equally effective as for a compound oxide mixture (PFN2).

Acido-basic properties of simple oxide surfaces III. Systematics of H+ and OH− adsorption

1993 ◽  
Vol 284 (1-2) ◽  
pp. A288
Author(s):  
Jacek Goniakowski ◽  
Sophie Bouette-Russo ◽  
Claudine Noguera
Keyword(s):  
Oxide Surfaces ◽  
Basic Properties ◽  
Simple Oxide

The ionic nature of metallurgical slags. Simple oxide systems

JOM ◽  
1949 ◽  
Vol 1 (2) ◽  
pp. 191-197 ◽  
Author(s):  
John Chipman ◽  
Lo-Ching Chang
Keyword(s):  
Oxide Systems ◽  
Simple Oxide ◽  
Metallurgical Slags ◽  
Ionic Nature

A novel high entropy spinel-type aluminate MAl2O4 (M = Zn, Mg, Cu, Co) and its lithiated oxyfluoride and oxychloride derivatives prepared by one-step mechanosynthesis

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Olena Porodko ◽  
Martin Fabián ◽  
Hristo Kolev ◽  
Maksym Lisnichuk ◽  
Markéta Zukalová ◽  
...  
Keyword(s):  
High Energy ◽  
Spinel Oxide ◽  
Spinel Type ◽  
High Entropy ◽  
Reduction Processes ◽  
Simple Oxide ◽  
Oxidation Reduction ◽  
One Step ◽  
Size And Morphology ◽  
First Time

Abstract For the first time, a spinel-type high entropy oxide (Zn0.25Cu0.25Mg0.25Co0.25)Al2O4 as well as its derivative lithiated high entropy oxyfluoride Li0.5(Zn0.25Cu0.25Mg0.25Co0.25)0.5Al2O3.5F0.5 and oxychloride Li0.5(Zn0.25Cu0.25Mg0.25Co0.25)0.5Al2O3.5Cl0.5 are prepared in the nanostructured state via high-energy co-milling of the simple oxide precursors and the halides (LiF or LiCl) as sources of lithium, fluorine and chlorine. Their nanostructure is investigated by XRD, HR-TEM, EDX and XPS spectroscopy. It is revealed that incorporation of lithium into the structure of spinel oxide together with the anionic substitution has significant effect on its short-range order, size and morphology of crystallites as well as on its oxidation/reduction processes. The charge capacity of the as-prepared nanomaterials tested by cyclic voltammetry is found to be rather poor despite lithiation of the samples in comparison to previously reported spinel-type high entropy oxides. Nevertheless, the present work offers the alternative one-step mechanochemical route to novel classes of high entropy oxides as well as to lithiated oxyfluorides and oxychlorides with the possibility to vary their cationic and anionic elemental composition.

An Exact and Simple Approach to log-log Plots for Defect and Ionic Equilibria

1997 ◽  
Vol 52 (8-9) ◽  
pp. 629-636
Author(s):  
Giorgio Spinolo ◽  
Umberto Anselmi-Tamburini ◽  
Paolo Ghigna
Keyword(s):  
Traditional Approach ◽  
Functional Dependence ◽  
Total Concentration ◽  
Free Ligand ◽  
Spreadsheet Program ◽  
Thermodynamic Variable ◽  
Defect Equilibria ◽  
Simple Oxide ◽  
Ionic Equilibria ◽  
Alternative Approach

Abstract An alternative approach to log-log plots for defect equilibria in the solid state and ionic equilibria in solution is presented. The method is based on the strictly monotone character of the functional dependence of an externally controlled thermodynamic variable (e.g. the oxygen partial pressure P(O2) for the defect equilibria in a simple oxide, or a total concentration for the ionic equilibria in solution) on a chemically relevant compositional variable (such as the electron concentration n for defect equilibria, or [H3O+] or a free ligand concentration for solution equilibria). This functional dependency can be safely inverted. The concentration of all species and the externally controlled thermodynamic variable can be calculated as a function of the chemically relevant compositional variable. The appropriate plots are then obtained using naively a spreadsheet program. This method gives exact results in many more cases than the traditional approach.

The manganese equilibrium under simple oxide slags

JOM ◽  
1950 ◽  
Vol 2 (2) ◽  
pp. 341-345 ◽  
Author(s):  
John Chipman ◽  
John B. Gero ◽  
Theodore B. Winkler
Keyword(s):  
Simple Oxide
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