Zn-based metal–organic frameworks as sacrificial agents for the synthesis of Zn/ZSM-5 catalysts and their applications in the aromatization of methanol

Yong Ze Tzeng, Ching Jung Chang, Ming Chang Yang, Meng Jung Tsai, Kentaro Teramura, Tsunehiro Tanaka, Hwei Voon Lee, Joon Ching Juan, Jing Yun Wu, Yu Chuan Lin

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Zn/ZSM-5 was prepared by using a combinative method of steam-assisted crystallization (SAC) and hard templating. Zn-based MOFs, including coordination polymer of Oslo number 1-Zn (CPO-1-Zn) and zeolitic imidazolate framework-8 (ZIF-8), were used as the sacrificial agents. These MOFs-derived catalysts were compared with Zn/ZSM-5 made by impregnation. Physicochemical characterization revealed that all Zn/ZSM-5 catalysts had finely dispersed Zn2+ species, i.e., ZnO and Zn(OH)+. However, the concentration of Lewis acidic Zn2+ species and the compositions of Zn(OH)+ and ZnO were different. Applying ZIF-8 as the sacrificial agent generated a higher concentration of Lewis acidic Zn2+ species and a higher ratio of Zn(OH)+-to-ZnO in Zn/ZSM-5, which showed a better performance in the aromatization of methanol.

Original languageEnglish
Pages (from-to)70-78
Number of pages9
JournalCatalysis Today
Volume375
DOIs
Publication statusPublished - 2021 Sep 1

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

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