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An H-ZSM-5 zeolite sample consisting of large particles (5–15μm) was synthesized and base treated using sodium hydroxide, guanidinium hydroxide and guanidinium carbonate to create a hierarchical pore system. In the case of sodium hydroxide as demetallation agent a high degree of mesoporosity was achieved and with guanidinium hydroxide, mesoporosity was observed after prolonged treatment. All samples...
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