A hierarchical ZSM-5 zeolite shows great application potential because of its micromesoporous structure. However, a hierarchical ZSM-5 was usually synthesized in the presence of an additional organic mesotemplate, which limited its popular application. Here, a hierarchically structured ZSM-5 was obtained through a newly developed carbonate-assisting process. The characterization results showed that the obtained materials featured an extraordinary mesoporosity structure (surface area of mesopores 106 m²·g^–1 and mesoporosity volume of 0.13 cm³·g^–1) and high degree of crystallization. Additionally, in the traditional catalytic cracking of heavy raw oil, the catalysts prepared from the materials exhibited much improved catalytic performances because of their enhanced meosoporosity amounts.

中文翻译：

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通过碳酸盐辅助策略获得具有分层孔的无介孔原 ZSM-5


多级 ZSM-5 分子筛由于其微介孔结构而显示出巨大的应用潜力。然而，分层 ZSM-5 通常是在额外的有机 mesotemplate 存在下合成的，这限制了其流行的应用。在这里，通过新开发的碳酸盐辅助工艺获得了分层结构的 ZSM-5。表征结果表明，所得材料具有非凡的介孔结构（介孔表面积 106 m²·g^–1，介孔体积为 0.13 cm³·g^–1）和高结晶度。此外，在重质原油的传统催化裂化中，由这些材料制备的催化剂由于其增强的中孔量而表现出大大改善的催化性能。