Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Zakharenko, A"'
Publikováno v:
Reaction Kinetics and Catalysis Letters. 18:321-324
Oxygen photoadsorption on SnO2 is shown to be accompanied by the formation of O2− ion-radicals. Charge separation under irradiation and stabilization of photoinduced centers is mot effective in the presence of physically adsorbed O2.
Publikováno v:
Reaction Kinetics and Catalysis Letters. 11:221-224
The paramagnetic centers of reduced anatase $$\boxed{O^ - }$$ (g1=1.999, g2=1.984, g3=1.979) and $$\boxed{O_3^ - }$$ (g1=2.046, g2=2.008), assigned to the stabilization of photoinduced holes near anion vacancies, have been studied. For the reduced ox
Autor:
V. S. Zakharenko, Valentin N. Parmon
Publikováno v:
Reaction Kinetics and Catalysis Letters. 34:389-394
Quantum efficiency of the photocatalytic hydrogen evolution upon illumination in the self-and dyesensitized absorption bands of suspended titanium dioxide has been determined. The photocatalytic activity observed upon illumination in the sensitizatio
Publikováno v:
Reaction Kinetics and Catalysis Letters. 12:1-4
ESR studies have been carried out to investigate the formation of paramagnetic products under photo-irradiation in various spectral regions of reduced anatase with chemisorbed O2 and adsorbed CO. Ion-radical complexes interpreted as CO3− and CO2−
Publikováno v:
Reaction Kinetics and Catalysis Letters. 10:325-328
Oxygen photoadsorption in the range of impurity absorption of rutile is governed by the surface hydration. The activity maximum is in the region of intrinsic absorption, where carbon monoxide is photoadsorbed.
Autor:
V. S. Zakharenko, A. E. Cherkashin
Publikováno v:
Reaction Kinetics and Catalysis Letters. 23:131-135
Photoadsorption activity of SnO2 with respect to O2 and NO after CO chemisorption has been revealed to be drastically increased. Photoadsorption is suggested to be sensitized by surface carbonates formed due to CO chemisorption.
Publikováno v:
Reaction Kinetics and Catalysis Letters. 11:277-280
The\(\boxed{O^ - }\) centers (g1=1,999; g2=1.984 and g3=1.979) assigned to the stabilization of photoinduced O− holes on coordinatively unsaturated Ti4+ ions, not interacting with CO up to 250 K, are shown to be the activation centers of the molecu
Publikováno v:
Reaction Kinetics and Catalysis Letters. 11:107-111
ESR studies of O2 adsorption on reduced anatase have been performed. The amount of O2− species is determined by adsorbed surface oxygen and their parameters are changed by CO adsorption.
Publikováno v:
Reaction Kinetics and Catalysis Letters. 10:329-332
In the region of intrinsic rutile adsorption, CO oxidation follows a redox mechanism via the interaction of CO with O− ion-radicals, and the photocatalytic activity is determined by the density of 2p states close to the top of the valence band.
Publikováno v:
Reaction Kinetics and Catalysis Letters. 36:295-300
Pt(alizarine)2 complex adsorbed on the surface of titanium dioxide has been found to cause spectral sensitization of the photocatalytic activity of TiO2. Adsorption of the complex provides simultaneously sensitization of the photoprocess and catalysi