中文摘要：

采用沉积沉淀法制备了不同碳纳米管（CNTs）含量的Au/xCNTs-CeO2催化剂,同时用XRD、H2-TPR、H2-TPD等对催化剂晶相结构、还原性、吸附性能等进行了表征,并以乙醇部分氧化制氢为探针反应,考察了催化剂的活性、H2选择性和产率,结果表明,适量的CNTs的添加有效的提高了Au/CeO2催化剂的活性、H2选择性和产率,在n（O2）∶n（C2H5OH）=1时,CNTs含量为6%、10%的Au/CeO2催化剂表现出了较好的活性、H2选择性和产率,其中Au/6%CNTs-CeO2催化剂在450℃产率可达64.3%。

英文摘要：

Novel silica-supported N, N, N＇, N＇-tetramethyl-N＂-propyl guanidinium （STMPG） ionic liq- uids with different anions including PF6-, CH3COO- and CFaSO3 were prepared through different methods in order to solve separation and recycling problems in the homogeneous reactions. The struc- tures of the ionic liquids and their precursors were determined by means of FT-IR, BET and elemental analysis. The acidity and basicity of the ionic liquids were determined and the results showed that pKa of ESTMPG~CH3COO was the highest, about 4.8 - 6.8.