Issue 7, 2024

Direct detection as a probe of platinum nanoparticles encapsulated in MFI zeolite nanocrystallite aggregates

Abstract

An X-ray fluorescence spectrometer (XRF) combined with an energy dispersive spectrometer (EDS) offers a wealth of information about the mode of distribution in heterogeneous catalysis for platinum nanoparticles (Pt-NPs) encapsulated in MFI zeolite nanocrystallite aggregates, thus providing a promising probe of their local structure. In this paper, we hydrothermally synthesized a novel microsphere monomer containing encapsulated Pt ZSM-5 nanocrystalline aggregates with a diameter of 5–7 μm, in which the Pt content can be confirmed by direct detection with the difference in detection depths of XRF and EDS. Moreover, the package structure can limit the size of the metal Pt particles, improve the degree of metal dispersion, and obtain high propane conversion (45%) and propylene selectivity (63%) over the long term.

Graphical abstract: Direct detection as a probe of platinum nanoparticles encapsulated in MFI zeolite nanocrystallite aggregates

Supplementary files

Article information

Article type
Paper
Submitted
24 Dec 2023
Accepted
09 Apr 2024
First published
03 May 2024

Mol. Syst. Des. Eng., 2024,9, 775-780

Direct detection as a probe of platinum nanoparticles encapsulated in MFI zeolite nanocrystallite aggregates

Y. Liu, M. Gao, C. Zhong, Y. Wu, X. Liao, S. Lv, Y. Jiang, Q. Li and Y. Yao, Mol. Syst. Des. Eng., 2024, 9, 775 DOI: 10.1039/D3ME00200D

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