Kinetics of oxidation of benzyl alcohols with molecular oxygen catalyzed by N ‐hydroxyphthalimide: Role of hydroperoxyl radicals

2019 ◽  
Vol 51 (9) ◽  
pp. 679-688
Author(s):  
I. A. Opeida ◽  
R. B. Sheparovych ◽  
Yu. M. Hrynda ◽  
O. Yu. Khavunko ◽  
M. O. Kompanets ◽  
...  
Keyword(s):  
Molecular Oxygen ◽  
Benzyl Alcohols ◽  
Kinetics Of Oxidation ◽  
Kinetics Of

Thermodynamic and Kinetic Investigation of the Solvent Effect on the Oxidation of [Co(en)2SCH2COO]+ with S2O82- In Water-Methanol and Water-tert-Butyl Alcohol Mixtures

1993 ◽  
Vol 58 (5) ◽  
pp. 1001-1006 ◽  
Author(s):  
Oľga Vollárová ◽  
Ján Benko
Keyword(s):  
Transfer Functions ◽  
Activation Parameters ◽  
Butyl Alcohol ◽  
Oxidation Of Co ◽  
Kinetics Of Oxidation ◽  
Tert Butyl ◽  
Tert Butyl Alcohol ◽  
Alcohol Mixtures ◽  
Kinetics Of

The kinetics of oxidation of [Co(en)2SCH2COO]+ with S2O82- was studied in water-methanol and water-tert-butyl alcohol mixtures. Changes in the reaction activation parameters ∆H≠ and ∆S≠ with varying concentration of the co-solvent depend on the kind of the latter, which points to a significant role of salvation effects. The solvation effect on the reaction is discussed based on a comparison of the transfer functions ∆Ht0, ∆St0 and ∆Gt0 for the initial and transition states with the changes in the activation parameters accompanying changes in the CO-solvent concentration. The transfer enthalpies of the reactant were obtained from calorimetric measurements.

The kinetics of oxidation of Cu(I) by molecular oxygen in aqueous pyridine

1984 ◽  
Vol 92 (3) ◽  
pp. 177-180 ◽  
Author(s):  
R. Stevanato ◽  
E. Argese ◽  
P. Viglino ◽  
A. Rigo
Keyword(s):  
Molecular Oxygen ◽  
Kinetics Of Oxidation ◽  
Kinetics Of

Oxidation Kinetics of Yba2Cu3OT7-x Thin Films in the Presence of Atomic Oxygen and Molecular Oxygen by In-Situ Resistivity Measurement

1991 ◽  
Vol 230 ◽  
Author(s):  
K. Yamamoto ◽  
B. M. Lairson ◽  
J. C. Bravman ◽  
T. H. Geballe
Keyword(s):  
Thin Films ◽  
Molecular Oxygen ◽  
Atomic Oxygen ◽  
Resistivity Measurement ◽  
Oxygen Stoichiometry ◽  
Ambient Conditions ◽  
Kinetics Of Oxidation ◽  
Thermally Activated ◽  
Kinetics Of

AbstractThe kinetics of oxidation in Yba2Cu3O7-x thin films in the presence of molecular and atomic oxygen ambients have been studied. The resistivity of c-axis, a-axis, and mixed a+c axis oriented films, deposited in-situ by off-axis magnetron sputtering, was measured as a function of time subsequent to a change in the ambient conditions. The oxidation process is shown to be thermally activated and can be characterized by a diffusion model with an activation energy which varies from approximately 1.2eV in the presence of molecular oxygen to 0.6eV for a flux of 2×1015 oxygen atoms/cm2sec. In both cases, diffusivity is found to be insensitive to oxygen stoichiometry, but the rate of oxidation is found to be sensitive to the microstructure and orientation of the films.

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