Bibliothèque de L'IMIST/CNRST

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.

Includes bibliographical references and indexes.

Theoretical principles of single-and mixed-gas adsorption equilibria on heterogeneous solid surfaces / G.F. Cerofolini and W. Rudzinski -- Application of lattice-gas models to describe mixed-gas adsorption equilibria on heterogeneous solid surfaces / Yu. K. Tovbin -- Theories of the adsorption-desorption kinetics on homogeneous surfaces / H.J. Kreuzer and S.H. Payne -- Theory of adsorption-desorption kinetics on flat heterogeneous surfaces / Yu. K. Tovbin -- Statistical rate theory and the material properties controlling adsorption kinetics on well defined surfaces / J.A.W. Elliott and C.A. Ward --A new theoretical approach to adsorption-desorption kinetics on energetically heterogeneous flat solid surfaces based on statistical rate theory of interfacial transport / W. Rudzinski -- Surface diffusion of adsorbates on heterogeneous substrates / G. Zgrablich -- Computer simulation of surface diffusion in adsorbed phases / W.A. Steele -- Multicomponent diffusion in zeolites and multicomponent surface diffusion / YuDong Chen and Ralph T. Yang -- Energy and structure heterogeneties for the adsorption in zeolites / A.S.T. Chiang ... [and others] -- Static and dynamic studies of the energetic surface heterogeneity of clay minerals / F. Villieras ... [and others] -- Multilayer adsorption as a tool to investigate the fractal nature of porous adsorbents / P. Pfeifer and Kuang-Yu Liu -- Heterogeneous surface structures of adsorbents / K. Kaneko -- Characterization of geometrical and energetic heterogeneties of active carbons by using sorption measurements / M. Jaroniec and J. Choma -- Structure of porous adsorbents : analysis using density functional theory and molecular simulation / C.M. Lastoskie, N. Quirke and K.E. Gubbins -- Dynamics of adsorption in heterogenous solids / D.D. Do -- Sorption rate processes in carbon molecular sieves / J.M.D. MacElroy, N.A. Seaton and S.P. Friedman.

Description based on print version record.