Acid-base Functionalized Ordered Mesoporous Carbon Materials Synthesis And Applications

Mesoporous carbon materials possess high surface areas, large pore volumes, uniform and tunable pore sizes and well-controlled pore structure, good electrical conductivity, hydrophobic, strong framework which extensively applied to adsorption, catalysis, electrochemical and biological medicine science and technology field. And the hybrid mesoporous carbon materials combine advantage of the mesoporous structure of mesoporous carbon and functionalities which are generated from the hybrid component, such as acid-base properties, electrical properties, magnetic properties.Based on the hybrid mesoporous carbon, we synthesis of functionalized mesoporous carbon materials by soft templates, using solvent volatilization induction self-assembly methods. The hybrid mesoporous carbons have potential application in catalysis, adsorption and electronic devices.The thesis is composed of four chapters. The first chapter is a detailed review on the development and research status of mesoporous carbons and organic-inorganic hybrid mesoporous carbon.In Chapter 2, acidic ordered mesoporous carbon nanocomposites are synthesized via an organic-organic self-assembly method by using resols as a polymer precursor, tetraethyl orthosilicate (TEOS) and aluminum chloride as inorganic precursors, and triblock copolymer F127 as a template. The mole ratio of silicon and aluminium can be just between 100-1. Acid functionalized mesoporous carbon materials have highly ordered mesostructure, high specific surface area (290 ~ 400 m2/g), large pore volume (0.25 ~ 0.4 cm3/g), uniform pore size (~ 5.5 nm). Acidic sites dispersed in mesoporous carbon framework well. We also study process of producing the acidic mesoporous carbon. The chapter provides a method of acidification mesoporous carbon materials.In Chapter 3, based on chapter 2, the alkali functionalized mesoporous carbon have been synthesized with magnesium nitrate hexahydrate for magnesium source, TEOS as silicon source, phenolic resin as the carbon sources, F127 for template. The Si/Mg ratio can be adjusted between 20-1. alkali functionalized mesoporous materials with 2d-hexagonal structure, high surface area (400-480 m2/g), large pore volume (0.41-0.55 cm3/g) and uniform pore size (6.4-7.6 nm) Magnesium oxide evenly dispersed in mesoporous carbon materials. This material is expected to apply in catalytic and adsorption fields.In Chapter 4, we report, the synthesis of SnO2/polymer nanocomposites. The nanocomposites has 2d-hexagonal structure. We got the samples calcined in different temperature and found that in the high temperature carbonization process, tin oxide particles grow bigger. This material can be used in electrochemical and catalytic reaction, such as the Baeyer - Villiger oxidation reaction of ketone.