Abstract
The translational motion of benzene mols. on the surfaces of a no. of different types of materials, such as SiO2 and a Pt/SiO2 catalyst, was studied using deuteron NMR techniques. When the temp. dependence of the correlation time for this motion was correlated using an Arrhenius type expression, a compensation effect was obsd. This means that there was a linear relation between the activation energy and the natural logarithm of the pre-exponential factor. The origin of this effect was explained by a theory for the mol. motion based on the fractal nature of the surfaces over which the benzene mols. are moving. [on SciFinder (R)]
| Original language | English |
|---|---|
| Pages (from-to) | 1613-1618 |
| Number of pages | 6 |
| Journal | Langmuir |
| Volume | 18 |
| Issue number | 5 |
| Publication status | Published - 2002 |
Keywords
- benzene translational motion platinum silica catalyst
- Fractals
- Kinetic and thermodynamic compensation effects (fractal theory for compensation effect obsd. in surface diffusion process studied using deuteron NMR)
- and Pt/SiO2 catalyst using deuteron NMR)
- Diffusion (surface
- fractal theory compensation effect surface diffusion NMR
- NMR (translational motion of benzene on surfaces of SiO2
- Pd/SiO2
- fractal theory for compensation effect obsd. in surface diffusion process studied using deuteron NMR)
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