### 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 |
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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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## Cite this

Rigby, S. P. (2002). Fractal Theory for the Compensation Effect Observed in a Surface Diffusion Process Studied Using Deuteron NMR.

*Langmuir*,*18*(5), 1613-1618.