Microwave-Assisted Synthesis of MIL-53(Al) and its Hydrogen Adsorption Properties

26 March 2025, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

This research examines the synthesis of MIL-53(Al) through both conventional hydrothermal synthesis (MIL-53(Al)-C) and microwave-assisted (MIL-53(Al)-MW) techniques, revealing notable disparities in their morphology and adsorption characteristics. The microwave method produces small, more uniform particles with increased BET surface area compared to conventional methods. MIL-53(Al)-MW demonstrates elevated H2 uptake in the low-pressure range. These results underscore the impact of microwave-assisted synthesis compared to conventional techniques.

Keywords

MIL-53(Al)
Microwave-Assisted Synthesis
Hydrogen Adsorption
Flexibility
Crystallinity and Morphology
Gas adsorption

Supplementary materials

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Supplementary information
Description
The supplementary information includes additional details on the chemical, synthesis of MOF, characterization techniques, and results that are not provided in the main manuscript. These encompass Powder X-ray Diffraction (PXRD), Scanning Electron Microscopy (SEM), Thermogravimetric Analysis (TGA), Nitrogen Sorption, and High-Pressure Hydrogen Sorption measurements.
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