A series of aggregated nano-ZSM-5 with controlled crystal size (<100 nm) were prepared via low temperature hydrothermal synthesis and utilized for the study of particle size effect of ZSM-5 on methanol to hydrocarbon (MTH) reaction for the first time. The textural and acidic properties of ZSM-5 at different crystal growth process were characterized and analyzed by N₂-sorption, XRD, NH₃-TPD, TEM, SEM, TG, Py-IR and XPS. Two stages of crystal growth were found during the synthesis which could be used to guide the controlled synthesis of ultra-tiny nano-ZSM-5. According to catalytic performance, it was found that compared to external acid sites, internal acid sites play a crucial role on the synthesis of gasoline products. A positive relationship was found between the acidity and liquid hydrocarbon yield. In nanometer scale (<100 nm) the crystal size and acidity of ZSM-5 still strongly influenced the catalytic performance and a balance existed between the crystal size control and acidity regulation for the catalytic stability. This work could attract more attention on the structure fine control of nanoscale ZSM-5 catalyst.

通过低温水热合成制备了一系列具有受控晶体尺寸（<100 nm）的纳米ZSM-5聚集体，并首次用于研究ZSM-5对甲醇制烃（MTH）反应的粒径影响。通过N ₂吸附，XRD，NH ₃表征和分析了ZSM-5在不同晶体生长过程中的质构和酸性。-TPD，TEM，SEM，TG，Py-IR和XPS。在合成过程中发现了两个晶体生长阶段，可用于指导超微小纳米ZSM-5的受控合成。根据催化性能，发现与外部酸性位相比，内部酸性位在汽油产物的合成中起关键作用。在酸度和液态烃产率之间发现正相关。在纳米级（<100 nm）中，ZSM-5的晶体尺寸和酸度仍然强烈影响催化性能，并且在晶体尺寸控制和酸度调节之间存在平衡，以保持催化稳定性。这项工作可能会在纳米级ZSM-5催化剂的结构精细控制上引起更多关注。