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Facile Solvent‐free Synthesis of Hollow Fiber Catalyst Assembled by c– axis Oriented ZSM‐5 Crystals
Author(s) -
Yu Xing,
Zhou Cunhui,
Chen Xinqing,
Gao Peng,
Qiu Minghuang,
Xue Wenjie,
Yang Chengguang,
Zhao Hanqin,
Liu Hongjiang,
Liu Ziyu,
Sun Yuhan
Publication year - 2018
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201801517
Subject(s) - zsm 5 , catalysis , materials science , fiber , chemical engineering , selectivity , methanol , substrate (aquarium) , crystal (programming language) , solvent , silicon , quartz , chemistry , composite material , zeolite , organic chemistry , oceanography , computer science , engineering , metallurgy , programming language , geology
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.