Mesoporous materials synthesis

Chemical Thermodynamics Mesoporous Materials, Synthesis and Properties Micelles Silicone (Siloxane) Surfactants... 

Depending on the conditions and chemical precursors used for mesoporous materials synthesis, different morphologies, such as hexagonal, cubic, or lamellar, and different pore sizes can be obtained (Fig. 9.2). Additionally, these materials can easily be functionalized with organic groups to produce a variety of hybrid inorganic-organic materials with new properties, which directly affect the functionality of the enzyme [91, 92]. 

Periodic mesoporous materials synthesis, characterization and potential applications... 

The history of mesoporous material synthesis is unintentionally or intentionally duplicating the development of zeolites and microporous molecular sieve. It starts from silicate and aluminosilicate, through heteroatom substitution, to other oxide compounds and sulfides. It is worth mentioning that many unavailable compositions for zeolite (e.g., certain transition metal oxides, even pure metals and carbon) can be made in mesoporous material form. 

The synthesis procedure for mesoporous material is simple, and synthesis parameters can be controlled easily. The simple procedure does not mean that the reactions or interactions among reactants in the synthesis system are simple. Many complicated reactions, interactions, and assemblies occur in the mesoporous material synthesis system. The synthesis involves three main components Inorganic species for the formation of the inorganic wall template (surfactant in most cases) whose assembly will guide the formation of mesophase the reaction media (solvent). Figure 8.3 shows the interactions between the three main components.[59] These interactions play the key roles during synthesis. The surfactant molecules in the solution will self-assemble into a micelle or liquid-crystal phase of course, various factors can affect the assembly process,... 

Nevertheless, using preorganized organic assembly to control morphology and nucleation is a potentially powerful approach to mesoporous materials synthesis, particularly... 

The defects (faults) and intergrowth can be often found in zeolite or microporous molecular sieve crystals. Mesoporous material synthesis is controlled kinetically and there is no defect-free mesoporous material. Various defects can be found easily in mesoporous materials, even for so-called high-quality materials.[106]... 

One great breakthrough in mesoporous material synthesis was the discovery of SBA-15.[113] The typical synthesis of SBA-15 is carried out by using poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) triblock-copolymer as... 

Series of Special Issues cover various aspects of microporous molecular sieves, metal-organic frameworks and ordered mesoporous materials. Synthesis principles, templating, formation mechanisms, characterization methods, functionalization strategies, and applications are discussed in excellent and comprehensive review articles and more specific research reports. 

S. liu, G. Liu, Q. Feng, Al-doped TiCh mesoporous materials synthesis and photodegradation properties. J. Porous. Mater. 17, 197-206 (2010)... 

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