Improved methanol-to-olefin reaction selectivity and catalyst life by CeO2 coating of ferrierite zeolite

Sung Jun Park, Hoi Gu Jang, Kwan Young Lee, Sung June Cho

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


The catalytic performance of the methanol-to-olefin (MTO) reaction over ferrierite zeolite was improved greatly by introduction of a CeO2 coating that selectively masked the acid sites on the external surface of the catalyst. In the absence of this coating, significant deterioration of the catalytic performance was observed owing to coke formation on the external surface and resultant blockage of the portals. Selective coating of CeO2 on the external surface was investigated using transmission electron microscopy, temperature-programmed desorption of NH3, N2 adsorption–desorption isotherms, and xenon adsorption measurements to reveal the structure–activity relationship. The resulting catalytic performance of CeO2-coated ferrierite zeolite in the MTO reaction was similar to that of MFI or high-silica CHA zeolite. The observed preferential formation of C4,= and C6,=, ∼90% free of aromatics was obtained because of the negligible deposition of heavy coke. This work shows that selective CeO2 coating on ferrierite zeolite was effective during catalyst regeneration and hydrothermal aging, leading to extended catalyst life and improved selectivity for catalytic applications.

Original languageEnglish
Pages (from-to)155-164
Number of pages10
JournalMicroporous and Mesoporous Materials
Publication statusPublished - 2018

Bibliographical note

Funding Information:
This research was supported by the Basic Science Research Program and the Global Frontier Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (MSIP) ( NRF-2016R1A5A1009592 and NRF- 2015M3A6B1065266 ). We thank the Pohang Acceleration Laboratory (PAL) for synchrotron diffraction beam time.

Publisher Copyright:
© 2017 Elsevier Inc.


  • CeO
  • Coke formation
  • Ferrierite
  • MTO reaction
  • Selective coating

ASJC Scopus subject areas

  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials


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