Characterization and adsorption behavior of ZSM-5 zeolite film on cordierite honeycombs prepared by a novel in situ crystallization method

Chengala D. Madhusoodana, Rathindra N. Das, Yoshikazu Kameshima, Atsuo Yasumori, Kiyoshi Okada

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Thin films of ZSM-5 zeolite prepared on three types of cordierite ceramic honeycomb substrates by a novel in situ crystallization method were characterized by XRD, FTIR, XRF, SEM-EDX, NH3-TPD and propane gas adsorption to examine the effect of the substrate on various properties of the ZSM-5 films. The substrates were both as-prepared and acid treated cordierite honeycombs. The XRD, FTIR and XRF results showed that silica-rich surface layers were formed on the surface of the honeycombs by the acid treatments. The SiO2/Al2O3 ratios of the ZSM-5 zeolite formed on these layers increased with increasing time of acid treatment. Both Al2O3 and SiO2 from the substrates were found to contribute to the formation reaction of the zeolite films corresponding to the Composition of the interfacial layer. The porous properties of the honeycomb substrates also varied in relation to the amount of zeolite film, which increased linearly with acid treatment time. The presence of the silica-rich interracial layer between the substrate and zeolite film increased the amount of ZSM-5 and the physical adsorption but decreased the solid acidity and amount of chemisorption.

Original languageEnglish
Pages (from-to)265-271
Number of pages7
JournalJournal of Porous Materials
Volume8
Issue number4
DOIs
Publication statusPublished - Dec 1 2001
Externally publishedYes

Keywords

  • Coating
  • Cordierite honeycomb
  • In situ crystallization
  • ZSM-5 zeolite

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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