On hydrogen adsorption by nanodispersed MoS2-based catalysts

Spectroscopy, microscopy and theoretical study of NO adsorption on MoS2 and Co–Mo–S hydrotreating catalysts

Infrared (IR) spectroscopy using NO as a probe molecule has been one of the important methods for characterizing hydrotreating catalysts, since this technique provides information on the nature and quantity of active edge sites of these catalysts. However, due to the strong adsorption of NO, which may lead to significant edge reconstructions, it has not been clear, how the characteristics of th...

Hydrogen Photogeneration Promoted by Efficient Electron Transfer from Iridium Sensitizers to Colloidal MoS2 Catalysts

We report the utilization of colloidal MoS2 nanoparticles (NPs) for multicomponent photocatalytic water reduction systems in cooperation with a series of cyclometalated Ir(III) sensitizers. The effects of the particle size and particle dispersion of MoS2 NPs catalyst, reaction solvent and the concentration of the components on hydrogen evolution efficiency were investigated. The MoS2 NPs exhibi...

Novel Nanodispersed Coal Liquefaction Catalysts: Molecular Design Via Microemuision-Based Synthesis

Adsorption Energetics on Pd Model Catalysts by Microcalorimetry

The efficient use of the limited resources on earth is a critical factor to sustainable life. The development of better catalysts can make a significant contribution. Complete understanding of the catalytic activity would facilitate the design and control of specific catalytic processes. Consequently, by tuning of the catalytic reactivity, the amount of energy to run a reaction and the amount o...

Pyridine Adsorption on Molybdenum Oxide-Alumina Catalysts

The adsorption of pyridine on a complete monolayer molybdenum oxide-Al203 catalyst was studied. Both Lewis and Bronsted acid sites are present on a catalyst with a Mo valence of -4.1. The orientation of adsorbed pyridine was studied by means of its interaction with surface OD groups, which leads to the formation of only 2-deuteriopyridine. The fraction of molybdenum ions active for hydrogenatio...