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

Document Type

Article

Publication Date

9-1-2021

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.

Keywords

Aromatics, Methanol, MOFs, Zinc, ZSM-5

Publication Title

Catalysis Today

Divisions

nanotechnology

Funders

Ministry of Science and Technology, Taiwan Ministry of Science, ICT & Future Planning, Republic of Korea[1062221E006188MY3],Taiwan's Deep Decarbonization Pathways toward a Sustainable Society[ASKPQ106DDPP],Higher Education Sprout Project, Ministry of Education (Taiwan)

Volume

375

Publisher

Elsevier

Publisher Location

RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS

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