Guidelines for Mastering the Properties of Molecular Sieves

1. Front Matter

   Pages i-xi

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2. Orientation of Chemical Properties by Direct Synthesis of Molecular Sieves

   1. Effects of substitution in SAPO-n Frameworks on their Properties as Acid Catalysts

      • Machteld Mertens, Johan A. Martens, Piet J. Grobet, Peter A. Jacobs

      Pages 1-52

   2. Zeolite Synthesis and Crystal Tailoring

      • François Fajula

      Pages 53-67

   3. New Mobilizing and Templating Agents in the Synthesis of Crystalline Microporous Solids

      • J. L. Guth, P. Caullet, A. Seive, J. Patarin, F. Delprato

      Pages 69-85

   4. A 13C - and 129Xe-NMR Study of the Role of Tetraalkylammonium Cations in the Synthesis of High-Silica Zeolites

      • Q. Chen, J. B. Nagy, J. Fraissard, J. El Hage-Al Asswad, Z. Gabelica, E. G. Derouane et al.

      Pages 87-93

   5. Promoter Effects on Phase Growth in Aluminophosphate and Silicaluminophosphate Gel Systems

      • R. Szostak

      Pages 95-98

3. Characterisation of Structural and Physicochemical Properties of Zeolitic Systems

   1. Recent Advances in Techniques for Characterizing Zeolite Structures

      • D. E. W. Vaughan, M. M. J. Treacy, J. M. Newsam

      Pages 99-120

   2. Recent Progresses in the Understanding of Chemical Properties of Zeolites

      • Jacques C. Védrine

      Pages 121-143

   3. The Determination of (Si,Al) Distribution in Zeolites

      • Alberto Alberti, Glauco Gottardi, Tiziana Lai

      Pages 145-155

   4. Solid-State Ion Exchange - Phenomenon and Mechanism

      • H. G. Karge, V. Mavrodinova, Z. Zheng, H. K. Beyer

      Pages 157-168

4. Static and Dynamic Parameters in Adsorption and Catalysis in Zeolites

   1. Temperature Dependence of the Mobility of Molecules Sorbed in Type A Zeolites

      • E. Cohen De Lara, R. Kahn

      Pages 169-182

   2. NMR-Studies of Molecular Motion of Hydrocarbons in Different Faujasites

      • Hans T. Lechert, Wolf D. Basler, Mendong Jia

      Pages 183-192

   3. Zeolitic Heteropoly Oxometalates

      • J. B. Moffat, G. B. McGarvey, J. B. McMonagle, V. Nayak, H. Nishi

      Pages 193-200

5. Localized and Overall Properties Related to the Nature and Structural Organization of the Framework Atoms

   1. On Lattice Dynamics, Stability and Acidity of Zeolites

      • R. A. van Santen, B. W. H. van Beest, A. J. M. de Man

      Pages 201-224

   2. Confinement Effects in Sorption and Catalysis by Zeolites

      • Eric G. Derouane

      Pages 225-239

   3. Cooperative and Localised Effects in Catalysis Over Zeolites

      • J. Dwyer

      Pages 241-261

   4. Long Range Versus Short Range Interactions in Zeolites

      • Wilfried J. Mortier, R. Vetrivel

      Pages 263-272

   5. Acid Function in Zeolites: Recent Progress

      • Jule A. Rabo, Gregory J. Gajda

      Pages 273-297

   6. Directing Activity and Selectivity of Large Pore Acid Zeolites Through the Control of their Physicochemical Properties

      • Avelino Corma

      Pages 299-317

6. Orientation of the Path of Reactions (Catalysis, Adsorption) By Chemical or other Geometric or Non Geometric Effects

   1. Is the Shape Selectivity Always Responsible for the Orientation of the Reaction Path in Zeolite Catalysis?

      • Wolfgang F. Hoelderich

      Pages 319-342

Low dimensionality is a multifarious concept which applies to very diversified materials. Thus, examples of low-dimensional systems are structures with one or several layers, single lines or patterns of lines, and small clusters isolated or dispersed in solid systems. Such low­ dimensional features can be produced in a wide variety of materials systems with a broad spectrum of scientific and practical interests. These features, in turn, induce specific properties and, particularly, specific transport properties. In the case of zeolites, low dimensionality appears in the network of small-diameter pores of molecular size, extending in one, two or three di­ mensions, that these solids exhibit as a characteristic feature and which explains the term of "molecular sieves" currently used to name these ma­ terials. Indeed, a large number of industrial processes for separation of gases and liquids, and for catalysis are based upon the use of this low­ dimensional feature in zeolites. For instance, zeolites constitute the first class of catalysts employed allover the world. Because of the peculiarity and flexibility of their structure (and composition), zeolites can be adapted to suit many specific and diversified applications. For this reason, zeolites are presently the object of a large and fast-growing interest among chemists and chemical engineers.

• Atom
• NMR
• Sorption
• Substitution
• adsorption
• catalysis
• catalyst
• cluster
• molecule
• platinum
• structure

• Université Paris VI, Paris, France

  Denise Barthomeuf

• Université Notre Dame de la Paix, Namur, Belgium

  Eric G. Derouane

• BASF, Ludwigshafen, Federal Republic of Germany

  Wolfgang Hölderich

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