选取工业上廉价的有机硅烷合成了软模板剂单体,并采用溶胶-凝胶法处理模板剂单体使其发生一定程度的缩聚。探究了已发生一定程度缩聚的模板剂能否继续在合成多级孔ZSM-5分子筛中起到介孔造孔的作用,以噻吩烷基化反应作为探针反应考察了所合成多级孔ZSM-5分子筛的催化性能。与传统ZSM-5分子筛相比,多级孔ZSM-5分子筛的催化性能有了明显提高;发生一定程度缩聚的模板剂合成的多级孔ZSM-5分子筛与模板剂单体所合成的样品相比性能没有明显降低。

Soft template monomers are made from cheap organosilicone,and treated by the sol-gel method to generate a degree of polycondensation.It is explored whether the template which has undergone a certain degree of polycondensation can continue to play the role of mesoporous pore formation in the synthesis of hierarchical porous ZSM-5 molecular sieve.Thiophene alkylation reaction is used as the probe reaction to investigate the catalytic performance of the synthesized hierarchical porous ZSM-5 molecular sieve.The catalytic performance of hierarchical porous ZSM-5 molecular sieve is significantly higher than that of traditional ZSM-5 molecular sieve.Compared with the sample synthesized by template monomer,the performance of hierarchical porous ZSM-5 molecular sieve synthesized by template with certain degree of polycondensation does not decrease significantly.

张超(1995-),男,硕士生,研究方向为催化与多孔新材料,2545439124@qq.com