Fluoride-mediated nano-sized high-silica ZSM-5 as an ultrastable catalyst for methanol conversion to propylene

Junjie Li, Min Liu, Xinwen Guo, Chengyi Dai, Chunshan Song

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
Pages (from-to)1225-1230
Number of pages6
JournalJournal of Energy Chemistry
Volume27
Issue number4
DOIs
StatePublished - Jul 1 2018

Fingerprint

Fluorides
Silicon Dioxide
Propylene
Methanol
Silica
Catalysts
Temperature programmed desorption
Aluminum
Differential thermal analysis
Catalysis
Seed
Nuclear magnetic resonance
Defects
Crystals
Scanning electron microscopy
silanol
hydroxide ion
propylene

All Science Journal Classification (ASJC) codes

  • Fuel Technology
  • Energy Engineering and Power Technology
  • Energy (miscellaneous)
  • Electrochemistry

Cite this

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title = "Fluoride-mediated nano-sized high-silica ZSM-5 as an ultrastable catalyst for methanol conversion to propylene",
abstract = "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.",
author = "Junjie Li and Min Liu and Xinwen Guo and Chengyi Dai and Chunshan Song",
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Fluoride-mediated nano-sized high-silica ZSM-5 as an ultrastable catalyst for methanol conversion to propylene. / Li, Junjie; Liu, Min; Guo, Xinwen; Dai, Chengyi; Song, Chunshan.

In: Journal of Energy Chemistry, Vol. 27, No. 4, 01.07.2018, p. 1225-1230.

Research output: Contribution to journalArticle

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

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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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