scholarly journals Recrystallized Silicon Carbide Electrode I. SiC/SCE System in Aqueous Acid-Base and Oxidation-Reduction Titrations

1992 ◽  
Vol 60 (5) ◽  
pp. 391-395
Author(s):  
R. M. Abou SHAHBA
Keyword(s):  
Silicon Carbide ◽  
Acid Base ◽  
Aqueous Acid ◽  
Oxidation Reduction

Solvation and redox properties of [Co(en)3]3+-[Co(en)3]2+ system

1980 ◽  
Vol 45 (2) ◽  
pp. 335-338 ◽  
Author(s):  
Adéla Kotočová ◽  
Ulrich Mayer
Keyword(s):  
Hydrogen Bond ◽  
Lewis Acid ◽  
Specific Interaction ◽  
Redox Properties ◽  
Solvation Effect ◽  
Interacting Particles ◽  
Acid Base ◽  
Polar Solvents ◽  
Oxidation Reduction ◽  
Solvent Molecules

The solvation effect of a number of nonaqueous polar solvents was studied on the oxidation-reduction properties of the [Co(en)3]3+-[Co(en)3]2+ system. Interactions of these ions with the solvent molecules are discussed in terms of their coordination, which is accompanied by a specific interaction of the Lewis acid-base type, namely formation of a hydrogen bond between the interacting particles. This is the main controlling factor of the redox properties of the studied system.

Aqueous acid–base chemistry involving dioxovanadium(V) complexes of 2,6-pyridinedimethanol, and the X-ray structures of Na[VO2{2,6-(OCH2)2NC5H3}]·4H2O and [1-H-2,6-(HOCH2)2NC5H3]+Cl−

2006 ◽  
Vol 359 (1) ◽  
pp. 248-256 ◽  
Author(s):  
Raena J. Fites ◽  
Adam T. Yeager ◽  
T.L. Sarvela ◽  
William A. Howard ◽  
Guang Zhu ◽  
...  
Keyword(s):  
Acid Base ◽  
X Ray ◽  
Aqueous Acid

Metal Phosphate Low-Melting Glasses Prepared by a Non-Aqueous Acid-Base Reaction

2011 ◽  
pp. 227-233
Author(s):  
Bouzid Menaa ◽  
Megumi Mizuno ◽  
Masahide Takahashi ◽  
Yomei Tokuda ◽  
Toshinobu Yoko ◽  
...  
Keyword(s):  
Metal Phosphate ◽  
Acid Base ◽  
Aqueous Acid

Ti/TiO2, Au Electrodes Prepared by Plasma Electrolytic Oxidation and Electron Beam Evaporation

2018 ◽  
Vol 386 ◽  
pp. 326-331 ◽  
Author(s):  
Marina S. Vasilyeva ◽  
Vladimir S. Rudnev ◽  
E.S. Zykova ◽  
Alexander Yu. Ustinov ◽  
Ksenia A. Sergeeva ◽  
...  
Keyword(s):  
Electron Beam ◽  
Plasma Electrolytic Oxidation ◽  
Electron Beam Evaporation ◽  
Glass Electrode ◽  
Excellent Performance ◽  
Acid Base ◽  
Oxidation Reduction ◽  
Electrolytic Oxidation ◽  
Different Types ◽  
Plasma Electrolytic

Ti/TiO2,Au electrodes were prepared via plasma electrolytic oxidation (PEO) of Ti plate, followed by deposition of a thin (10 nm) Au layer by electron beam evaporation (EBE). The electrodes obtained were used for potentiometric indication of different types of chemical reactions. Ti/TiO2,Au electrodes showed an excellent performance for end point indication in the oxidation-reduction and complexometric titrations similar to the traditional Pt and in the acid-base titration similar to glass electrode.

The reactions of metal sulphides with molten potassium nitrate

1975 ◽  
Vol 28 (9) ◽  
pp. 2073 ◽  
Author(s):  
BJ Meehan ◽  
SA Tariq
Keyword(s):  
Metal Oxides ◽  
Metal Cations ◽  
Potassium Nitrate ◽  
Oxides Of Nitrogen ◽  
Acid Base ◽  
Oxidation Reduction ◽  
Cu And Zn

The reactions of TiS2, VS, Cr2S3, MnS, FeS, CoS, NiS, CuS and ZnS with molten potassium nitrate were studied. In the melt, Ti, Ni, Cu and Zn metal cations exhibited acid-base reactions and were precipitated as metal oxides whereas V, Cr, Mn, Fe and Co metal cations showed oxidation-reduction as well as acid-base reactions and were converted into VO3-, CrO42-, MnO2, Fe2O3 and Co3O4 respectively. The sulphide sulphur in all cases was oxidized to sulphate and the nitrate melt was reduced to nitrite and oxides of nitrogen. The stoichiometries of these reactions have been established.

Atomic Bonding at Oxide Surfaces

1994 ◽  
Vol 357 ◽  
Author(s):  
Victor E. Henrich
Keyword(s):  
Point Defects ◽  
Surface Defects ◽  
Oxide Surfaces ◽  
Surface Point ◽  
Acid Base ◽  
Metal Oxide Surfaces ◽  
Oxidation Reduction ◽  
Defect Sites ◽  
Metal Ceramic ◽  
Ceramic Interfaces

AbstractThe fundamental interactions involved in the bonding of atoms and molecules to metal oxides are discussed. Surface defects play a major role in many of those interactions. Both acid/base and oxidation/reduction reactions occur at metal-oxide surfaces, with the latter dominating at point defect sites. The reaction of metals with oxide surfaces is governed largely by the relative heats of formation of the respective oxides, although surface point defects also play an important role. Preliminary studies of ceramic/ceramic interfaces indicate that interfacial interactions are much weaker than for metal/ceramic interfaces.

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