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A series of organic structure-directing agents (SDAs) derived from N-methyl piperazine are synthesized and first used in the zeolite synthesis. When the hydrothermal synthesis route is applied, SDA1, SDA3 and SDA4 are beneficial to the formation of ZSM-12 lattice, but SDA2 and SDA5 readily induce the nucleation and crystallization of ZSM-5 phase. When using the dry gel conversion route, only SDA5...
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