ArticleAngewandte Chemie (International ed. in English)2022
Electron Diffraction Enables the Mapping of Coke in ZSM-5 Micropores Formed during Methanol-to-Hydrocarbons Conversion.
Article in Angewandte Chemie (International ed. in English), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 29 citations in OpenAlex.
- Spatial Evolution of Coke in ZSM-5 Catalysts During Methanol-to-Hydrocarbons Conversion Revealed by In Situ X-Ray Photoelectron Spectroscopy.Angewandte Chemie (International ed. in English) · 2026Article
- Preparation of a High-Silicon ZSM-5 Molecular Sieve Using Only Coal Gangue as the Silicon and Aluminum Sources.Materials (Basel, Switzerland) · 2023Article
- Structure determination of a low-crystallinity covalent organic framework by three-dimensional electron diffraction.Communications chemistry · 2023Article
- From ethene to propene (ETP) on tailored silica-alumina supports with isolated Ni(ii) sites: uncovering the importance of surface nickel aluminate sites and the carbon-pool mechanism.Catalysis science & technology · 2022Article
- Electron Diffraction Enables the Mapping of Coke in ZSM-5 Micropores Formed during Methanol-to-Hydrocarbons Conversion.Angewandte Chemie (International ed. in English) · 2022Article
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
Abstract
Unveiling the coke formation in zeolites is an essential prerequisite for tackling the deactivation of these catalysts in the transformations of hydrocarbons. Herein, we present the direct mapping of coke in the micropores of ZSM-5 catalysts used in methanol-to-hydrocarbons conversion by single-crystal electron diffraction analysis. The latter technique revealed a polycyclic aromatic structure along the straight channel, wherein the high-quality data permit refinement of its occupancy to about 40 %. These findings were exploited to analyze the evolution of micropore coke during the reaction. Herein, coke-associated signals, which correlate with the activity loss, indicate that the nucleation of coke commences in the intersections of sinusoidal and straight channels, while the formation of coke in the straight pores occurs in the late stages of deactivation. The findings uncover an attractive method for analyzing coke deposition in the micropore domain.
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