Preparation Of Carbon Nano-materials By Carbonization Reaction On The Template Catalyst

Using MgO as template,various morphologies of microporous or mesoporous carbon materials can be prepared by selecting different aromatic compounds as carbon source.According to this idea,this thesis uses autoclave reactor,deposition reaction of different aromatic compounds in different MgO template,porous carbon and nitrogen doped carbon sheets were prepared,the effects of carbon source and magnesium sources on porous carbon nanosheets pore structure and adsorption properties of CO₂ was investigated.Firstly,porous carbon nanosheets were prepared with different aromatic compounds as carbon source,and flake MgO played the role of template.The results showed that the rate of carbon formation from pyrrole and anthracene as carbon source was high,reaching about 50%,but the specific surface area was small? 130 m²/g?.The type of carbon materials in the pore is mainly slit nonuniform.Pyrrole as the carbon source and nitrogen content of carbon materials in the highest,reaching 10%.Carbon materials are carbazole as the carbon source of the largest surface area? 700 m²/g?,the adsorption of CO₂ is the best.Using pyrrole as carbon source and different MgO precursors as templates,it was found that the magnesium source had a great influence on the formation rate of carbon and the specific surface area of porous carbon.Porous carbon nanosheets deposited on the self-made MgO template,without activation under the condition of high specific surface area of 1105 m²/g,the adsorption capacity of CO₂ reached 1.51 mmol/g,have a common effect of microporous and surface nitrogen for the adsorption capacity of CO₂ increased.