Description

The fact that the surfaces of real solids are geometrically distorted and chemically non-uniform has long been realized by the scientists investigating various phenomena occurring on solid surfaces. Even in the case when diffraction experiments show a well-organized bulk solid structure, the surface atoms or molecules will usually exhibit a much smaller degree of surface organization. In addition to the results obtained from electron diffraction, this can be seen in the impressive images obtained from STM and AFM microscopies. This geometric and chemical disorder is the source of the energetic heterogeneity for molecules adsorbing on real solid surfaces. Hundreds of papers have been published showing that this heterogeneity is a major factor in determining the behaviour of real adsorption systems.

Studies of adsorption on energetically heterogeneous surfaces have proceeded along three somewhat separate paths, with only minor coupling of ideas. One was the study of adsorption equilibria on heterogeneous solid surfaces. The second path was the study of time evolution of adsorption processes such as surface diffusion or adsorption-desorption kinetics on heterogeneous surfaces, and the third was the study of adsorption in porous solids, or more generally, adsorption in systems with limited dimensions. The present monograph is a first attempt to provide a synthesis of the ways that surface geometric and energetic heterogeneities affect both the equilibria and the time evolution of adsorption on real solids. The book contains 17 chapters written by a team of internationally recognized specialists, some of whom have already published books on adsorption.

Table of Contents

Preface. List of Contributors. 1. Theoretical Principles of Single– and Mixed–Gas Adsorption Equilibria on Heterogeneous Solid Surfaces (G.F. Cerofolini, W. Rudziński). 2. Application of Lattice–Gas Models to Describe Mixed–Gas Adsorption Equilibria on Heterogeneous Solid Surfaces (Yu,K. Tovbin). 3. Theories of the Adsorption–Desorption Kinetics on Homogeneous Surfaces (H.J. Kreuzer, S.H. Payne). 4. Theory of Adsorption–Desorption Kinetics on Flat Homogeneous Surfaces (Yu.K. Tovbin). 5. Statistical Rate Theory and the Material Properties Controlling Adsorption Kinetics on Well Defined Surfaces (J.A.W. Elliot, C.A. Ward). 6. A New Theoretical Approach to Adsorption–Desorption Kinetics on Energetically Heterogeneous Flat Solid Surfaces Based on Statistical Rate Theory of Interfacial Transport (W. Rudziński). 7. Surface Diffusion of Adsorbates on Heterogeneous Substrates (G. Zgrablich). 8. Computer Simulation of Surface Diffusion in Adsorbed Phases (W.A. Steele). 9. Multicomponent Diffusion in Zeolites and Multicomponent Surface Diffusion (Y.D. Chen, R.T. Yang). 10. Energy and Structure Heterogeneities for the Adsorption in Zeolites (A.S.T. Chiang, C.K. Lee, W. Rudziński, J. Narkiewicz–Michalek, P. Szabelski). 11. Static and Dynamic Studies of the Energetic Surface Heterogeneity of Clay Minerals (F. Villieras (et al.). 12. Multilayer Adsorption as a Tool to Investigate the Fractal Nature of Porous Adsorbents (P. Pfeifer, K.-Y. Liu). 13. Heterogeneous Surface Structures of Adsorbents (K. Kaneko). 14. Characterization of Geometrical and Energetic Heterogeneities of Active Carbons by Using Sorption Measurements (M. Jaroniec, J. Choma). 15. Structure of Porous Adsorbents: Analysis Using Density Functio

Details

No. of pages:
883
Language:
English
Copyright:
© 1997
Published:
Imprint:
Elsevier Science
Print ISBN:
9780444822437
Electronic ISBN:
9780080531199