采用一步水热晶化法、不添加第二模板剂、仅通过控制合成条件,制备了具有多级孔道结构的IM-5-H分子筛。多级孔IM-5-H材料展现了与常规IM-5-C分子筛不同的形貌、结构和酸性质。由于IM-5-H分子筛载体介孔结构的促进作用,钼基Mo-IM-5-H催化剂在甲烷无氧芳构化反应中表现出较高的甲烷转化率(13.1%)、芳烃产率(7.5%)和稳定性。该研究为合成多级孔IM-5材料提供了一种简便的方法,同时扩展了微孔-介孔复合材料在甲烷芳构化反应中的应用。 A one-step hydrothermal crystallization method was used to prepare IM-5-H molecular sieve with multistage pore structure only by controlling the synthesis conditions without adding the second template. The multi-stage pore IM-5-H material exhibits different topography, structure and acid properties than the conventional IM-5-C molecular sieve. Due to the mesoporous structure of IM-5-H zeolite, molybdenum-based Mo-IM-5-H catalyst showed higher methane conversion (13.1%) in methane-free oxygenation and aromatics yield (7.5%) and stability. The research provides a simple and convenient method for synthesizing multi-level pore IM-5 materials and expands the application of microporous-mesoporous composite materials in methane aromatization.