在微乳液体系中成功地将花瓣状介孔氧化硅微球(KCC-1)包覆在钛硅分子筛TS-1表面,得到了一种新型微孔/介孔复合核壳结构材料TS-1@KCC-1.详细考察了TS-1@KCC-1的合成条件及可能的形成机理.适宜的合成温度及时间分别为373-393 K和4h.壳层厚度可方便地通过改变硅源正硅酸乙酯和TS-1的比例在25-80 nm间进行调控.以TS-1@KCC-1为载体负载Rh(OH)x后即得到双功能催化材料Rh(OH)x/TS-1@KCC-1,该材料同时具有Ti和Rh(OH)x活性中心,可以高效催化醛、氨水和过氧化氢经一锅串联反应直接制备得到伯酰胺.
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