Synthese And Application Of Mesoporous Carbon-basd Solid Acid Materials

Synthesis and assembly of mesoporous structure are hot spot currently in materials science, chemistry, physics, life science research field. The synthesis of mesoporous materials are two ways;soft and hard templates .In the synthesis, it has not only limited to a single component assembly between surfactant, but increasingly on a variety of different functions in the building blocks (such as organic, inorganic and biological materials) together, through multiple synergistic surfactant assembly process to build both with many advantages in one of the ordered nano-composite material, to extend mesoporous materials in catalysis, energy storage / conversion, magnetic and other applications.In this thesis, we use the method of Ternary assembly to design and synthesis of a high thermal stability of ordered mesoporous carbon - zirconia composites. In addition, we will make the synthesis of carbon - zirconia composites acidification to synthesized mesoporous carbon-based solid acid composite materials to improve the stability of solid acid catalyst,recovery percent and the effect of acid catalyzed reaction. Then we turn the carbon - zirconia composite materials alkaline and conduct a simple study.The thesis is composed of four chapters., the first chapter is a detailed review on supramolecular aggregate's self-assembling for rational controlled synthesis of mesoporous polymers and carbons.The second chapter describes the different contents of mesoporous zirconia C - ZrO₂ Composites. Direct three-block copolymer as a template, zirconium tetrachloride,as zirconium source, resol resin as carbon source, synthetic ordered mesoporous carbon - zirconia nanocrystalline composite materials. Composite materials with high specific surface area (207-274 m²/g), large pore volume (0.15-0.25 cm³/g), uniform pore size (3.2-4.3 nm) and high crystallinity of nanocrystalline walls, nanocrystals from amorphous Carbon adhesion. Zirconium dioxide content can be adjusted differently, mesoporous carbon - zirconia composite calcined at high temperatures is still able to maintain an orderly structure.The third chapter introduces the mesoporous solid acid and its application, using the synthesis of carbon - zirconia composite materials acidification to the mesoporous solid acid materials with ordered structure, high surface area (207-274 m²/g), large pore volume (0.15-0.25 cm³/g), uniform pore size (3.2-4.3 nm), the acid catalyzed reaction with a high catalytic efficiency and good selectivity.The fourth chapter introduces the mesoporous synthetic carbon-based solid base and preliminary studies, the above synthesis of carbon - zirconia composites alkalized to the mesoporous solid base materials, and conduct simple preliminary study.