Article
Compensation effect of benzene hydrogenation on Pt(111) and Pt(100) analyzed by the selective energy transfer model
Catalysis Letters
(2008)
Abstract
Kinetic measurements at low temperatures (310-360 K) using gas chromatography (GC) for benzene hydrogenation on Pt(100) and Pt(111) single crystal surfaces have been carried out at Torr pressures. These kinetic measurements demonstrated a linear compensation effect for the production of cyclohexane. A detailed application of the model of selective energy transfer to the experimentally obtained results yields the vibrational frequency of the adsorbate leading to reaction. This frequency is attributed to ring distortion modes. The vibrational frequency of the heat bath, or catalyst, is ascribed to a Pt-H mode. An approximate heat of adsorption of the reacting molecule is also calculated from the model.
Keywords
- Benzene,
- C6 hydrocarbons,
- catalytic reaction,
- compensation effect,
- hydrogenation,
- isokinetic temperature,
- Pt (100),
- Pt(111),
- selective energy transfer model
Disciplines
Publication Date
2008
Publisher Statement
This is a manuscript of an article from Catalysis Letters 121 (2008): 173-178, doi: 10.1007/s10562-007-9372-6. The final publication is available at Springer via http://dx.doi.org/10.1007/s10562-007-9372-6. Posted with permission.
Citation Information
Kaitlin M. Bratlie, Yimin Li, Ragnar Larsson and Gabor A. Somorjai. "Compensation effect of benzene hydrogenation on Pt(111) and Pt(100) analyzed by the selective energy transfer model" Catalysis Letters Vol. 121 Iss. 3-4 (2008) Available at: http://works.bepress.com/kaitlin_bratlie/10/