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Controlling Crystal Orientation in Zeolite MFI Thin Films by Direct In Situ Crystallization
Abstract
A systematic study was carried out on the synthesis of oriented continuous zeolite MFI thin films on stainless steel substrate by direct in-situ crystallization, and clear correlation was obtained between crystal orientation in the zeolite film and the composition of the synthesis solution. Within the synthesis system of TPAOH:NaOH:TEOS:H 2 O:NaCl, OH - /Si and Na + /TPA + ratios play a critical role in controlling crystal orientation. For sodium-free or low sodium syntheses, only random-oriented films are formed at OH - /Si ≥ 0.64, ( a, b )-oriented films at 0.64 > OH - /Si > 0.5 or at 0.2 ≥ OH - /Si > 0.1, and b -oriented films at 0.5 ≥ OH - /Si > 0.2. For a given OH - /Si ratio, addition of Na + leads to change of crystal orientation from b -oriented, to ( a, b )-oriented, to ( a, b, c )-oriented, and eventually to random-oriented.
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Cited by
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Davis, M. E. (2002) · Nature · doi:10.1038/nature00785 · Cited by 5,308
Baleizão, C., & Garcia, H. (2006) · Chemical Reviews · doi:10.1021/cr050973n · Cited by 697
Green Routes for Synthesis of Zeolites
Meng, X., & Xiao, F.-S. (2014) · Chemical Reviews · doi:10.1021/cr4001513 · Cited by 635
Metadata
- Authors
- Wang, Z., & Yan, Y.
- Venue
- Chemistry of Materials
- Publisher
- American Chemical Society (ACS)
- Published
- 2001-03-01
- Volume
- 13
- Issue
- 3
- Pages
- 1101-1107
- ISSN
- 0897-4756 (ISSN-L)
- 1520-5002
- OpenAlex
- W1974647082
- Cited by
- 181
- References
- 0
- FWCI
- 6.15
- Type
- journal article
- Language
- en
- Open access
- closed
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- Wang, Z., & Yan, Y. (2001). Controlling Crystal Orientation in Zeolite MFI Thin Films by Direct In Situ Crystallization. Chemistry of Materials. https://doi.org/10.1021/cm000849e
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