Study of the elementary processes involved in the selective oxidation of methane over MoO(sub x)/SiO(sub 2)
Article Abstract:
A MoO(sub x)/SiO(sub 2) catalyst prepared with a Mo loading of 0.44 Mo/nm(super 2) consisted of isolated, pentacoordinated molybdate species containing a single Mo=O bond. Raman spectroscopy results showed that these are reduced by H(sub 2) to molybdate species containing Mo(super IV) cations but methane and CO are not effective reducing agents hence active species for methane oxidation is a peroxide species formed by the reaction of oxygen with the low concentration of reduced molybdate species present on catalyst surface.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Synergistic active sites on SiO2-Al2O3-TiO2 photocatalysts for direct methane coupling
Article Abstract:
Photocatalytic systems have the potential to promote difficult reactions and are examined in both oxidative and nonoxidative systems for methane conversion. The results suggest that the pair sites consisting of the dispersed AlO4 and TiO4 species are responsible for a high activity of the SiO2-Al2O3-TiO2 photocatalyst in this reaction.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2003
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Electronic energy levels of organic dyes on silicon: A photoelectron spectroscopy study of ZnPc, F16ZnPc, and ZnTPP on p-Si(111):H
Article Abstract:
The alignment of energy levels and chemical interaction of the organic pigments ZnPc, substituted F16ZnPc, and ZnTPP on H-terminated Si(111) derived from valence band and core level photoelectron spectroscopy with high surface sensitivity for coverage below and in the monolayer region is reported.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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- Abstracts: Photocatalytic oxidation of 2- Chloroethyl ethyl sulfide on TiO(sub 2)-SiO(sub 2) powders. Infrared spectroscopic investigation of CO adsorption on silica-supported nickel phosphide catalysts
- Abstracts: A study of the surface region of the Mo-V-Te-O catalysts for propane oxidation to acrylic acid. An AFM study of the correlation of lead dioxide electrocatalytic activity with observed morphology
- Abstracts: Structural investigation of vanadyl-acetylacetonate-containing precursors of TiO(sub x)-V)(sub x) mixed oxides on SBA-15