Controllable Synthesis, Diffusion Study and Catalysis of Hierarchical Zeolites

Run Zou, Xiao Dong, Yilai Jiao, Carmine D'agostino, Wenfu Yan, Xiaolei Fan

Research output: Journal PublicationReview articlepeer-review

4 Citations (Scopus)

Abstract

Hierarchical zeolites refer to zeolitic materials having bi-/multi-modal interconnective pores arranged in order of certain ranks, which improve the molecular diffusion within their frameworks, and hence the performance in their applications such as adsorption and heterogeneous catalysis. Hierarchical zeolites are commonly produced via the top-down post-synthetic treatments(such as dealumination and/or desilication) of pre-synthesized zeolites(i.e. the parent zeolites) and the bottom-up synthesis-by-design methods(such as soft/hard templating). This review presents the recent advances(mainly post 2000) in the strategies of making hierarchical zeolites, with the emphasis on the top-down approaches due to their relatively high practicality. Since hierarchical zeolites are proposed to improve intracrystalline diffusion, experimental studies of guest molecules diffusion in hierarchical zeolites are also reviewed. Additionally, catalytic applications of hierarchical zeolites, in comparison with the conventional microporous pristine zeolites, are also commented to highlight the advantages of hierarchical zeolites to improve catalysis.

Translated title of the contribution等级孔分子筛的可控合成, 扩散研究及催化应用
Original languageEnglish
Pages (from-to)74-100
Number of pages27
JournalKao Teng Hsueh Hsiao Hua Heush Hsueh Pao/ Chemical Journal of Chinese Universities
Volume42
Issue number1
DOIs
Publication statusPublished - 10 Jan 2021
Externally publishedYes

Keywords

  • Catalysis
  • Diffusion
  • Hierarchical zeolite
  • Post-synthetic treatment
  • Pulsed-field gradient nuclear magnetic resonance(PFG NMR)

ASJC Scopus subject areas

  • General Chemistry

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