Synthesis of core–shell structured zeolite nanocomposite comprising ZSM-5 core and zeolite Y shell

Jacky H. Advani, Arjun K. Manal, Narasimharao Kanna, Pramod Kumar, Rajaram Bal, Rajendra Srivastava

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Zeolite core-zeolite shell synthesis is promising to enhance selective catalysis in the petrochemical industry, yet the complex synthesis poses a challenge. The successful growth of the Na-Y zeolite shell over the ZSM-5 core, producing a nanocrystalline core–shell structure, was achieved by hydrothermal crystallization via a sequential seeding-dissolution-growth route via alkaline-induced desilication of ZSM-5, followed by the addition of silica and alumina precursors to grow nanosized Na-Y crystallites over the ZSM-5 core. The successful fabrication of the core–shell structure was confirmed by different physicochemical characterizations. The optimized core–shell zeolite demonstrated noteworthy characteristics, featuring a high BET surface area of 493 m2g−1 and an external surface area of 195 m2g−1. Further, the material exhibited a connected porous network, contributing to the total pore volume of 0.52 cm3g−1. Such a strategy can be adopted to fabricate other core–shell materials for advancing the catalytic processes.

Original languageEnglish
Article number135994
JournalMaterials Letters
Volume360
DOIs
StatePublished - 1 Apr 2024
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2024 Elsevier B.V.

Keywords

  • Composite materials
  • Crystal growth
  • Nanocrystalline materials
  • Porous materials

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