TY - JOUR
T1 - Fluoride-mediated nano-sized high-silica ZSM-5 as an ultrastable catalyst for methanol conversion to propylene
AU - Li, Junjie
AU - Liu, Min
AU - Guo, Xinwen
AU - Dai, Chengyi
AU - Song, Chunshan
N1 - Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2018/7/1
Y1 - 2018/7/1
N2 - Fluoride mediated nano-sized ZSM-5 (ZSM-5-F) with a high Si/Al ratio of 181 was fabricated using a seed-induction method and evaluated the catalysis of the methanol to propylene (MTP) reaction. High propylene selectivity (45%) was similar to ZSM-5-OH synthesized via a hydroxide route. However, ZSM-5-F showed much longer lifetime (305 h) compared with ZSM-5-OH (157 h) in spite of similar crystal size and aluminum content. Characterization by NH3-TPD, Py-IR, OH-IR, SEM, TG-DTA, XRD and 1H MAS NMR techniques indicated that the enhanced catalytic performance of ZSM-5-F is attributed to the fewer structural defects in the form of internal silanol groups and silanol nests.
AB - Fluoride mediated nano-sized ZSM-5 (ZSM-5-F) with a high Si/Al ratio of 181 was fabricated using a seed-induction method and evaluated the catalysis of the methanol to propylene (MTP) reaction. High propylene selectivity (45%) was similar to ZSM-5-OH synthesized via a hydroxide route. However, ZSM-5-F showed much longer lifetime (305 h) compared with ZSM-5-OH (157 h) in spite of similar crystal size and aluminum content. Characterization by NH3-TPD, Py-IR, OH-IR, SEM, TG-DTA, XRD and 1H MAS NMR techniques indicated that the enhanced catalytic performance of ZSM-5-F is attributed to the fewer structural defects in the form of internal silanol groups and silanol nests.
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U2 - 10.1016/j.jechem.2017.08.018
DO - 10.1016/j.jechem.2017.08.018
M3 - Article
AN - SCOPUS:85031319794
SN - 2095-4956
VL - 27
SP - 1225
EP - 1230
JO - Journal of Energy Chemistry
JF - Journal of Energy Chemistry
IS - 4
ER -