Adsorption integral equation via complex approximation with constraints: The Langmuir kernel
✍ Scribed by Bushenkov, Vladimir A.; Ramalho, J. P. Prates; Smirnov, Georgi V.
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 416 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0192-8651
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✦ Synopsis
The relationship between the measured adsorption isotherm and unknown energy distribution function is described by so-called adsorption integral equation, a linear Fredholm integral equation of the first kind. We consider the case of the Langmuir kernel when the equation can be reduced to the Stieltjes integral equation. A new method for solving the Stieltjes equation is developed. The method is based on the ideas of complex approximation with constraints. The numerical algorithms constructed on the base of this method allow reduction of the problem under consideration to linear or linear-quadratic programming problems. The method is compared with the usual regularization methods. The obtained results can be useful for the evaluation of the experimental adsorption energy distribution from experimental data.