NDLI: Zeolite coating on foamed stainless steel by in-situ crystallization method

Content Provider	Springer Nature Link
Author	Asakura, H. Madhusoodana, C. D. Kameshima, Y. Nakajima, A. Okada, K.
Copyright Year	2006
Abstract	Faujasite-type zeolite films were prepared on foamed stainless steel by the in-situ crystallization method. Precursor solutions were prepared by dissolving water glass and NaAlO$_{2}$in a NaOH solution and aged at room temperature for two days. The concentrations of the starting materials were varied from 0.29 to 2.3 M (in SiO$_{2}$concentration) keeping the molar ratios of Na$_{2}$O:SiO$_{2}$:Al$_{2}$O$_{3}$fixed at 3.6:3.0:1.0. The foamed stainless steel substrate had about 90% of porosity and an average pore size of 600 μ m. It was dip-coated in the precursor solution four times, then hydrothermally treated at 80$^{∘}$, 110$^{∘}$ and 150$^{∘}$C for 6–48 h. The XRD patterns and SEM photographs revealed that faujasite-type zeolite was formed predominantly at a SiO$_{2}$concentration of 1.1 M, temperature of 110$^{∘}$C and duration of 24 h, with a product particle size of 2–5 μ m. At higher concentrations of the precursor solution, hydroxylsodalite becomes the major product rather than faujasite-type zeolite. The adherence strength of the zeolite grains deposited on the foamed stainless steel is higher in the in-situ crystallization method than when a conventional solution method is used. Thus, the in-situ crystallization method is concluded to be effective for preparing zeolite films even on metal substrates.
Starting Page	31
Ending Page	36
Page Count	6
File Format	PDF
ISSN	13853449
Journal	Journal of Electroceramics
Volume Number	17
Issue Number	1
e-ISSN	15738663
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2006-01-01
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Zeolite coating Foamed stainless steel In situ crystallization Faujasite-type zeolite Hydrothermal treatment Optical and Electronic Materials Ceramics, Glass, Composites, Natural Methods Characterization and Evaluation of Materials Electrochemistry Crystallography
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Materials Chemistry Mechanics of Materials Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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