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在水蒸气中,由含表面活性剂十六烷基三甲基溴化铵(CTAB)的无定形凝胶合成出Si-MCM-41和Al-Si-MCM-41分子筛纯相,研究了它们的合成条件。在较低的表面活性剂CTAB用量下(CTAB/Si=0.025),亦可合成出Al-Si-MCM-41分子筛。以N2吸附等温线结果,计算出它们的比表面积,孔体积和孔径分布等孔结构参数。
The pure phases of Si-MCM-41 and Al-Si-MCM-41 molecular sieves were synthesized from an amorphous gel containing surfactant Cetyltrimethylammonium Bromide (CTAB) in water vapor and their The synthesis conditions. Al-Si-MCM-41 molecular sieves can also be synthesized at lower CTAB loadings (CTAB / Si = 0.025). With N2 adsorption isotherm results, calculate their specific surface area, pore volume and pore size distribution and other pore structure parameters.