This book provides a comprehensive overview of the fundamental properties, preparation routes and applications of a novel class of organic-inorganic nanocomposites known as periodic mesoporous organosilicas (PMOs).

Mesoporous silicas are amorphous inorganic materials which have silicon and oxygen atoms in their framework with pore size ranging from 2 to 50 nm. They can be synthesized from surfactants as templates for the polycondensation of various silicon sources such as tetraalkoxysilane. In general, mesoporous silica materials possess high surface areas, tunable pore diameters, high pore volumes and well uniformly organized porosity. The stable chemical property and the variable ability for chemical modification makes them ideal for many applications such as drug carrier, sensor, separation, catalyst, and adsorbent. Among such mesoporous silicas, in 1999, three groups in Canada, Germany, and Japan independently developed a novel class of organic-inorganic nanocomposites known as periodic mesoporous organosilicas (PMOs). The organic functional groups in the frameworks of these solids allow tuning of their surface properties and modification of the bulk properties of the material.

The book discusses the properties of PMOs, their preparation, different functionalities and morphology, before going on to applications in fields such as catalysis, drug delivery, sensing, optics, electronic devices, environmental applications (gas sensing and gas adsorption), biomolecule adsorption and chromatography. The book provides fundamental understanding of PMOs and their advanced applications for general materials chemists and is an excellent guide to these promising novel materials for graduate students majoring in chemical engineering, chemistry, polymer science and materials science and engineering.

Autorentext

Chang-Sik Ha is a professor at the Department of Polymer Science and Engineering, Pusan National University (PNU), Korea since 1982. He received his PhD in Chemical Engineering from Korea Advanced Institute of Science and Technology(KAIST), Seoul, Korea in 1987. He served as a Vice President of PNU, Director of the Pioneer Research Center for Nanogrid Materials, the Honorary Professor of University of Queensland, Australia, and Associate Editor of both the Advanced Porous Materials and the Composite Interfaces. He was appointed as the University Distinguished Professor in 2016. He has been elected as the members of both the Korea Academy of Science and Technology and the National Engineering Academy of Korea in 2004. He published over 750 papers in peer-reviewed journals, 70 patents, and 24 book or book chapters. He received several honorable awards including Samsung Polymer Science Award from the Polymer Society of Korea(2011) and the SPSJ International Award from the Society of Polymer Science, Japan(2017). His research interests include periodic mesoporous organosilicas (PMOs), organicinorganic nanohybrid materials and functional polymers for various applications.

Sung Soo Park is a research professor in Pusan National University (PNU), Korea since 2003. He received his PhD (in 2002) in Chemistry from Inje University, Korea. Before he joined PNU, he was a postdoctoral research fellow in Korea Advanced Institute of Science and Technology, Korea in 2002. He published over 80 papers in peer-reviewed journals and 25 patents. His main research interests include periodic mesoporous organosilica materials and organicinorganic hybrid nanocomposites for application in the area of drug delivery, photosensing, and adsorption of gas and metal ions.

Inhalt

Chapter 1. Introduction

Chapter 2. General Synthesis and Physico-chemical Properties of Mesoporous Materials

2.1. Synthesis Methods of Mesoporous Materials

2.1.1. Sol-gel Method

2.1.2. Template Assisted Technique 2.1.3. Liquid Crystal Template Approach (LCTA)

2.1.4. Microwave Assisted Technique

2.1.5. Chemical Etching Technique

2.2. Templates

2.**3. Basic and Acidic Synthesis**

2.3.1. Basic Condition

2.3.2. Acidic Condition 2.4. **Temperature2.5.Removal of Template**

2.6. Nonaqueous Synthesis

2.7. Mesophase Tailoring

2.7.1 Micellar Mesostructure. 2.7.1.1. Critical Micelle Concentration

2.7.1.2. The Packing Parameter

2.7.1.3. The Hydrophilic/Hydrophobic Volume Ratio

2.7.1.4. Surfactant Phase Diagram.

2.7.2. 2-Dimensional (2D) Mesostructures.

2.7.3. 3-Dimensional (3D) Mesostructures.

2.7.3.1. Bicontinuous Cubic Mesostructures

2.7.3.2. Cage-type Mesostructures.

2.7.4. Lamellar and Disordered Mesostructures

2.7.5. Other Mesostructures.

2.8. Morphology Control of Mesoporous Silica 2.9. Modification of Mesoporous Silica 2.9.1. Modification of Nanoparticles Inside Mesoporous Silica 2.9.2. Organic Modification on the Pore Surface of Mesoporous Silica

2.9.2.1. Grafting Method

2.9.2.2. Co-condensation Method

2.10. Application of Mesoporous Silica

2.11. Periodic Mesoporous Organosilicas (PMOs)

Chapter 3. Synthetic Routes and New Precursors for the Preparation of PMOs

3.1. Synthetic Pathways of PMOs

3.2. Precursors for the Preparation of PMOs

3.2.1. Amorphous Precursors

3.2.1.1. Long Chain and Cyclic Moieties Bridged PMO Precursors

3.1.1.4. Bis-silylate Chiral Precursors

3.2.1.3. Metal Complexes Included in PMO Materials.

3.2.2. Crystalline Precursors

Chapter 4. PMOs with a Range of Morphologies

4.1. Powder or Monolith Morphologies

4.2. Hollow Morphology

4.3. Film Morphology

Chapter 5. PMOs for Catalytic Applications

5.1. Organic Group Functionalized PMO Materials

5.2. Metal Complex Functionalized PMOs 5.2.1. Pd Complex Functionalized PMOs 5.2.2. Ru Complex Functionalized PMOs

5.2.3. Pt Complex Functionalized PMOs

5.2.4. V Complex Functionalized PMOs

5.2.5. Ir Complex Functionalized PMOs

5.2.6. Mn Complex Functionalized PMOs

5.2.7. Cu Complex Functionalized PMOs

5.2.8. Rh Complex Functionalized PMO

5.2.9. Mo Complex Functionalized PMOs 5.2.10. Sc Complex Functionalized PMO

5.2.11. Ti Complex Functionalized PMOs

5.2.12. Fe, Cu, Sn Complex Functionalized PMOs

5.2.13. Ferrocene Complex Functionalized PMOs 5.2.14. WO42- Complex Functionalized PMO

5.2.15. Bimetal Complex Functionalized PMOs

5.4. Metal Nanoparticles Supported PMOs 5.4.1. Au Nanoparticles Supported PMOs 5.4.2. Pt Nanoparticles Supported PMOs

5.4.3. Pd Nanoparticles Supported PMOs

5.4.4. Other Au, Pt, Pd Nanoparticles Supported PMOs 5.4.5. Pt-Pd Bi-metal Nanoparticles Supported PMOs

5.4.6. Pt, IrOx Nanoparticles Supported PMOs

5.4.7. Phosphomolybdic Acid Nanoparticles Supported PMOs ...