Thermal chemistry of C4 hydrocarbons on Pt(111): Mechanism for double-bond isomerization

Article Abstract:

The thermal reactions of C4 moieties adsorbed on Pt(111) are investigated by temperature-programmed desorption (TPD) and reflection absorption infrared spectroscopy (RAIRS). A combination of rapid beta-hydride eliminations from alkyls to olefins and the reverse insertions of those olefins into metal-hydrogen bonds explain the hydrogenation, dehydration, and H-D exchange products that desorb from the surface.

California, Usage, Absorption spectra, Olefins, Alkenes

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Low-temperature water-gas shift: In-situ DRIFTS- Reaction study of a Pt/CeO(sub 2) catalyst for fuel cell reformer applications

Article Abstract:

Steady-state IR measurements for adsorption of only CO and under WGS reaction indicating the formats present on the surface of partially reduced ceria are compared with the recent study that they are strongly limited at high CO conversions. The IR results favor the bidentate formate mechanism in explaining WGS.

Science & research, Research, Thermal properties, Chemical reactions, Adsorption

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