Facile Solvent-free Synthesis of Hollow Fiber Catalyst Assembled by c–axis Oriented ZSM-5 Crystals

Graphical CatalyZSM-5 : Well crystallized hollow fibers assembled by c -axis oriented ZSM-5 crystals were successfully synthesized via a facile one-pot solvent-free route, using quartz fiber as silicon substrate and NH 4 HCO 3 as the growing inhibitor on the crystal faces. The obtained ZSM-5 hollow fibers gave a hierarchical structures composed by micro-, meso- and macropores exhibiting excellent performance in methanol to gasoline (MTG) reaction with higher C 5+ selectivity and longer lifetime due to the improved mass transfer inside the unique hollow fiber structure. Well crystallized hollow fibers assembled by c -axis oriented ZSM-5 crystals were successfully synthesized via a facile one-pot solvent-free route, using quartz fiber as silicon substrate and NH 4 HCO 3 as the growing inhibitor on the crystal faces. The immigration of silica inside the quartz fibers formed the hollow morphology and the shell of hollow fiber was composed by the ZSM-5 crystals. In addition, the length of c -axis of ZSM-5 could be controlled by the amount of NH 4 HCO 3 , which selectively inhibited the growth on (010) surface. The obtained ZSM-5 hollow fibers gave a hierarchical structures composed by micro-, meso- and macropores. Catalytic tests for methanol to gasoline (MTG) revealed that the resultant ZSM-5 hollow fiber exhibited excellent performance with higher C 5+ selectivity and longer lifetime due to the improved mass transfer inside the unique hollow fiber structure.