The hierarchical ZSM-5 zeolites with interconnected meso-/microporosity have been successfully synthesized by using the commercial organosilane surfactant TPOAC as the mesopore structure-directing agent, and the influence of the TPOAC/SiO₂ ratio in the initial synthesis gel on the crystallinity, hierarchical structure, and acidity of the obtained hierarchical ZSM-5 zeolites were systematically investigated through a combination of XRD, FTIR, SEM, TEM, N₂ adsorption, TGA, ICP, and NH₃-TPD techniques. The catalytic performance was evaluated by the methanol-to-propylene (MTP) reaction, and the obtained results indicated that the hierarchical ZSM-5 catalysts directed by TPOAC exhibited significant enhancement in the catalytic performance reflected at activity, lifetime, product yield, P/E ratio, and coke toleration by virtue of their superior meso-/micropore interconnectivity and appropriately weakened acidity, comparing with the commercial bulky ZSM-5 and the conventional sole micropore ZSM-5.

中文翻译：

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ZSM-5分子筛在有机硅烷表面活性剂的指导下合成具有改进的甲醇-丙烯反应催化性能

通过使用商业有机硅烷表面活性剂TPOAC作为介孔结构导向剂，成功合成了具有介孔/微孔互连的分层ZSM-5沸石，并且初始合成凝胶中TPOAC / SiO ₂比率对结晶度的影响，通过XRD，FTIR，SEM，TEM，N ₂吸附，TGA，ICP和NH ₃的组合，系统地研究了获得的ZSM-5分子筛的分子结构，酸度。-TPD技术。通过甲醇制丙烯（MTP）反应评估了催化性能，所得结果表明，由TPOAC指导的分级ZSM-5催化剂在活性，寿命，产物收率，P /与商业化的笨重的ZSM-5和传统的单一微孔ZSM-5相比，E比和焦炭耐受性具有优异的介孔/微孔互连性和适当弱化的酸度。