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Chabazite Architecture Dominates the Structure of SAPO-34’s Surface Methoxy Species

  • Kailu Zang
  • Wenna Zhang
  • Jindou Huang
  • Pei FengEmail author
Article
  • 44 Downloads

Abstract

Four types of SAPO-34’s surface methoxy species (CH3-SAPO-34) structures have been studied by periodic density functional theory calculations. The most stable CH3-SAPO-34 structure is the methyl cation locating on the framework oxygen anion site O(z1), which is at the middle position of a cha composite building unit.

Graphical Abstract

Keywords

Zeolites Reaction intermediates Density functional theory Methanol-to-olefins SAPO-34 Surface methoxy species Chabazite architecture Steric hindrance 

Notes

Acknowledgements

We are grateful to the Dalian Institute of Chemical Physics Methanol to Olefins Program (Grant No. DICP DMTO201601).

Compliance with Ethical Standards

Conflict of interest

The authors declare no competing financial interest.

Supplementary Material

The supplementary material contains additional figures and tables, and the structure coordinates of HZ1 to HZ4 and SMS1 to SMS4.

Supplementary material

10562_2019_2774_MOESM1_ESM.pdf (1.3 mb)
Supplementary material 1 (PDF 1285 kb)

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalianPeople’s Republic of China
  2. 2.University of Chinese Academy of SciencesBeijingPeople’s Republic of China
  3. 3.National Engineering Laboratory for Methanol to Olefins, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalianPeople’s Republic of China

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