| 초록 |
Mesoporous Si(O)C materials have been synthesized by using anionic surfactant as structure directing agent. The obtained mesoporous SiOC based on water-borne silisesquioxane oligomer (APS) and N-trimethoxylsilylpropyl-N,N,N-trimethylammonium chloride (TMAPS) as co-structure-directing-agents (CSDA) with 1490-1762m2/g were thoroughly investigated by BET, SAXS, TEM, EA, 13C NMR, 29Si NMR and N2 sorption. The preferred structure was adjusted by varying the CSDA/surfactant ratio, which allow for better control of nanoscale morphologies. These Si(O)C mesoporous provide a new family of mesoporous materials with high thermal stability. In addition, Hydrogen storage capacity of Si(O)C mesoporous were investigated by H2 adsorption at 298K with 1.3 wt%. |
