| 초록 |
RF aerogels were synthesized via the sol-gel polycondensation of resorcinol(R) with formaldehyde(F) in a slightly basic aqueous solution. carbon aerogels were then obtained by pyrolyzing the RF aerogels at 1173K. The control of mesoporous structure and surface area of the aerogels was studied by changing the amount of resorcinol(R) and sodium carbonate(catalyst, C) used in the polycondensation. When the R/C ratio was 800, it showed optimal mesoporous carbon aerogels. Carbon nanosheets were prepared by electrospinning of polyacrylonitrile(PAN) and poly(methyl nl methacrylate)(PMMA) solution with carbon aerogel in N,Ndimethylformamide(DMF). The morphology of carbon composites were investigated using SEM. The surface area and pore size were measured by BET. Also, electrochemical property of carbon aerogel/polymer composites were investigated by three electrode system. |
