Buscar
Mostrando ítems 1-10 de 3141
Quantitative Determination of the Number of Surface Active Sites and the Turnover Frequencies for Methanol Oxidation over Metal Oxide Catalysts: Application to Bulk Metal Molybdates and Pure Metal Oxide Catalysts
(Academic Press Inc Elsevier Science, 2001-09-23)
The present work investigates the number and nature of the surface active sites and the catalytic activity of bulk metal molybdates and bulk metal oxides on methanol selective oxidation. Bulk metal molybdates were synthesized ...
Quantification of active sites for the determination of methanol oxidation turn-over frequencies using methanol chemisorption and in situ infrared techniques. 1: Supported metal oxide catalysts
(American Chemical Society, 2001-10)
Methanol oxidation over metal oxide catalysts is industrially important for the production of formaldehyde, but knowledge about the intrinsic catalysis taking place is often obscured by a lack of knowledge as to the number ...
Quantitative determination of the number of active surface sites and the turnover frequencies for methanol oxidation over metal oxide catalysts: I. Fundamentals of the methanol chemisorption technique and application to monolayer supported molybdenum oxide catalysts
(Elsevier Science, 2000-11)
A detailed study of the methanol chemisorption and oxidation processes on oxide surfaces allowed the development of a method to quantify the number of surface active sites (Ns) of metal oxide catalysts. In situ infrared ...
Quantitative determination of the number of surface active sites and the turnover frequency for methanol oxidation over bulk metal vanadates
(Elsevier Science, 2003-02)
The present work investigates the number and nature of the surface active sites, selectivity and turnover frequency towards methanol selective oxidation of a series of bulk metal vanadates. The catalysts were synthesized ...
The interaction of metal oxide surfaces with complexing agents dissolved in water
(Elsevier Science Sa, 2000-01)
Upon exposure to liquid water or to aqueous solutions, the surfaces of metal oxide particles or films undergo a series of chemical reactions that are dictated to a large extent by the chemistry of the metal ions involved. ...
Adsorbed states and the kinetics of electrooxidation of phenols on metal oxides
(Facultad Experimental de Ciencias de la Universidad del Zulia, 2011)
Molecular Structure and Reactivity of the Group V Metal Oxides
(Elsevier Science, 2000-04)
The molecular structures and reactivity of the group V metal oxides (V2O5, Nb2O5 and Ta2O5) were compared. Their solid state structural chemistry, physical and electronic properties, number of active surface sites and their ...
Molecular structure and reactivity of the group V metal oxides
(Elsevier Science, 2000-04-20)
The molecular structures and reactivity of the group V metal oxides (V2O5, Nb2O5 and Ta2O5) were compared. Their solid state structural chemistry, physical and electronic properties, number of active surface sites and their ...
Theory of electrical characteristics for metal-oxide-insulator Schottky barrier and metal-insulator-metal structures
(1990-12-01)
The metal-insulator or metal-amorphous semiconductor blocking contact is still not well understood. Here, the intimate metal-insulator and metal-oxide-insulator contact are discussed. Further, the steady-state characteristics ...
Theory of electrical characteristics for metal-oxide-insulator Schottky barrier and metal-insulator-metal structures
(1990-12-01)
The metal-insulator or metal-amorphous semiconductor blocking contact is still not well understood. Here, the intimate metal-insulator and metal-oxide-insulator contact are discussed. Further, the steady-state characteristics ...