Molecular Chemistry of Sol-Gel Derived Nanomaterials / Edition 1

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Overview

Presenting the wide range of synthetic possibilities opened by sol-gel processes in the field of organic-inorganic materials, Molecular Chemistry of Sol-Gel Derived Nanomaterials discusses the state of the art in the synthesis of the various nanomaterials. The text includes examples of applications, including photoluminescent nanocomposites, grafted nanomaterials for selective separations of ions or isotopes, for cascade syntheses, chelation of transition metals and lanthanides by lamellar structured nanomaterials, and immobilized enzymes on mesoporous nanomaterials. This indispensable text for graduate students, engineers, and scientists concludes with a look toward future developments.

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Editorial Reviews

From the Publisher
"The authors argue convincingly in their preface that nanotechnology should not be associated exclusively with miniaturization and physics. The 'bottom-up' approach is indeed the natural way that chemists think about matter: from bonds and molecules to the material." (Angewandte Chemie International Edition, 2009)
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Product Details

  • ISBN-13: 9780470721179
  • Publisher: Wiley
  • Publication date: 4/14/2009
  • Edition number: 1
  • Pages: 200
  • Product dimensions: 6.20 (w) x 9.20 (h) x 0.70 (d)

Table of Contents

Preface ix

About the Authors xiii

1 Molecular Chemistry and Nanosciences 1

1.1 Introduction 1

1.2 Scope and Origin of Nanosciences: The 'Top-Down' and 'Bottom-Up' Approaches 2

1.3 Chemical Mutation: From an Exploratory to a Creative Science 4

1.4 Carbon and Ceramic Fibers: The Nanomaterial 'Ancestors' 9

1.4.1 Carbon Fibers 9

1.4.2 SiC, Si3N4 Ceramic Fibers 11

1.5 Conclusions 14

References 15

2 Nano-Objects 17

2.1 Introduction 17

2.2 Presentation of Nano-Objects 18

2.3 Synthesis of Nano-Objects 21

2.4 The Nano-Object: Entry into Nanosciences 22

2.4.1 Nano-Objects and the Exploration of the Nanoworld 23

References 24

3 Introduction to Material Chemistry 27

3.1 General Remarks 27

3.1.1 The Difference Between Materials and Chemical Compounds 28

3.1.2 Examples of Shaping and Use 29

3.2 Inorganic Materials: Crystals and Glasses 30

3.3 Thermodynamically Controlled Organic-Inorganic Hybrid Materials 31

3.3.1 Crystalline Molecular Materials 31

3.3.2 Materials Derived from Hydrothermal Synthesis 32

3.4 Ceramic Materials Obtained from Organometallic Polymers: Ceramics with Interpenetrating Networks 34

3.5 Inorganic Polymer Materials (Sol-Gel Process) 38

3.5.1 Inorganic Polymerization: An Introduction 38

3.5.2 Physical Characteristics of the Solid Obtained 46

3.5.3 Control of the Texture of Materials 51

3.5.4 Solid State NMR: A Very Useful Tool 57

3.6 Inorganic Polymerization and Molecular Chemistry 61

3.7 Silica and Molecular Chemistry: A Dream Team 62

3.7.1 Introduction to the Chemistry of Other Oxides 64

3.7.2 Generalization to Other Types of Combinations 65

References 67

4 FromNano-Object to Nanomaterial 71

4.1 The Different Types of Nanomaterials 71

4.2 Inorganic Polymerization: A Major Route to Nanomaterials 73

4.3 Nanocomposite Materials 74

4.3.1 Nanocomposites in Silica Matrices 74

4.3.2 Some Developments of Nanocomposites 75

4.3.3 Presentation of Potential New Matrices 76

4.4 Grafted Materials 78

4.4.1 Advantages of Solid Supports 78

4.4.2 General Remarks 80

4.5 Selective Separation 81

4.6 Materials Obtained by Polycondensation of Monosubstituted Trialkoxysilances 84

4.7 Multistage Syntheses - Cascade Reactions 86

References 87

5 Nanostructured Materials 91

5.1 General Remarks 91

5.2 Synthesis of Hybrid Nanomaterials 92

5.2.1 General Remarks 92

5.2.2 Why Silicon and Silica? 93

5.2.3 Main Silylation Methods. Some Examples of Synthesis 95

5.3 Nanostructured Hybrid Materials 100

5.3.1 Examples of the Materials 100

5.3.2 Description of Nanostructured Hybrid Materials 100

5.3.3 Some Characteristics 103

5.4 Kinetic Control of the Texture of Nanostructured Hybrid Materials 104

5.5 Supramolecular Self-Organization Induced by Hydrogen Bonds 104

5.6 Supramolecular Self-Organization Induced by Weak van der Waals Type Bonds 107

5.6.1 What do We Mean by Self-Organization? 107

5.6.2 Chemical Behavior and Self-Organization 107

5.6.3 Study of Self-Organization 113

5.6.4 Generalization of the Self-Organization Phenomenon 117

5.6.5 Study of Tetrahedral Systems 120

5.6.6 Kinetic Control of Self-Organization 122

5.6.7 Some Reflections on the Observed Self-Organization 126

5.7 Lamellar Materials 128

5.8 Prospects 133

5.8.1 General Remarks 133

5.8.2 Properties Due to the Nano-Objects 133

5.8.3 Influence of the Self-Organization on the Coordination Mode in the Solid 134

5.8.4 Coordination within the Solid: A New Experimentation Field 137

5.9 Some Possible Developments 138

5.9.1 Preparation of Nanomaterials from Nano-Objects 138

5.9.2 Nanostructured Hybrids as Matrices for Nanocomposite Material 139

5.9.3 Inclusion of Hybrid Systems in Matrices other than SiO2 139

5.9.4 Functionalization of the Matrices 140

References 141

6 Chemistry Leading to Interactive Nanomaterials 145

6.1 Introduction 145

6.2 Smart Materials 146

6.3 The Route to Interactive Materials - Definitions 147

6.4 Mesoporous Materials 148

6.4.1 Production 148

6.4.2 Some Examples of Mesoporous Silica 148

6.5 Functionalization of the Pores 150

6.5.1 Functionalization by Grafting 150

6.5.2 Functionalization by Direct Synthesis 151

6.6 Functionalization of the Framework 154

6.6.1 Production of Periodic Mesoporous Organosilica 155

6.6.2 Prospects and Challenges Opened up by these Materials 156

6.7 Importance of Functionalization and of Weight Analyses 158

6.8 On the Way to Interactive Nanomaterials 160

6.8.1 Examples of Joint Functionalization of the Framework and the Pores 161

6.8.2 An Acid and a Base at the Nanometric Scale 164

6.9 Preparation of New Matrices 166

6.10 On the Way to Biological Applications 167

6.11 Conclusions 168

References 169

7 Prospects and Stakes 173

7.1 General Remarks 173

7.2 Predictable Developments 174

References 179

Index 181

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