Fundamental aspects of enantioselective heterogeneous catalysis: the surface chemistry of methyl pyruvate on Pt{111}

Article Abstract:

The adsorption and reactivity of methyl pyruvate on Pt{111} with the use of STM, NEXAFS,XPS, and TPR is characterised.The irreversible deactivation during start-up or ready-state operation of Pt catalysts during enantioselective hydrogenation of alkyl pyruvates can be due to hydrogen starvation which results in polymerization of the prochiral reactant is suggested.

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Molecular conformation of styrene on Ag(100): relevance to an understanding of the catalytic epoxidation of terminal alkenes

Article Abstract:

Experiments conducted on styrene to examine its adsorption, desorption and molecular conformation are presented. The experiments include temperature programmed desorption and X-ray photoelectron spectroscopy.

Silver, Optical properties, Photoelectron spectroscopy, Styrene

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Density functional theory analysis of benzene (De)hydrogenation on Pt(111): addition and removal of the first two H-atoms

Article Abstract:

The study presented provides explanations to the addition of the first and the second hydrogen atoms to benzene. The methods used for this purpose are density functional theory and generalized gradient.

Petrochemical Manufacturing, Benzene, Density functionals, Density functional theory, Chemical properties, Atomic properties

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