Boron's role in altering MFI-type zeolite

Rac, Vladislav; Rakić, Vesna; Palčić, Ana; Dib, Eddy; Postole, Georgeta; Damjanović-Vasilić, Ljiljana; Pavlović, Vladimir; Lević, Steva; Bosnar, Sanja (2025) Boron's role in altering MFI-type zeolite. Microporous and Mesoporous Materials, 384 . ISSN 13871811

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Abstract

All-silica, boron and boron-aluminium substituted MFI-type zeolites were prepared. Different amounts of boron were added to the starting reaction mixtures to investigate their influence on the properties of the obtained zeolites. A comprehensive characterization of the materials was conducted using various techniques: X-ray Diffraction (XRD), nitrogen physisorption, Scanning Electron Microscopy (SEM), infrared (IR), Nuclear Magnetic Resonance (NMR) spectroscopy, thermogravimetric analysis (TGA) as well as microcalorimetry. The MFI topology and crystallinity is preserved regardless the amount of heteroatoms that occupied different local environments, while the morphology of the crystals, their thermal stability, and their acidity differ considerably. For instance, boron assuming both tetrahedral and trigonal coordination, affect the interactions of the framework with both the organic structure directing agents (OSDA) and ammonia species giving rise to detectable differences in acidity.

Item Type:	Article
Uncontrolled Keywords:	boron incorporation; MFI zeolite; structure; acidity
Subjects:	NATURAL SCIENCES > Chemistry
Divisions:	Division of Materials Chemistry
Projects:	Project title Project leader Project code Project type Zeoliti s malim šupljinama modificirani bakrom pogodni za primjenu u zaštiti okoliša-SMALLPORE Ana Palčić; Magdalena Jablonska UIP-2019-04-4977 HRZZ
Depositing User:	Ema Buhin Šaler
Date Deposited:	15 Jul 2026 10:27
URI:	https://fulir.irb.hr:/id/eprint/12076
DOI:	10.1016/j.micromeso.2024.113454

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