Article detail · 2015
2D Zeolite Coatings Langmuir Schaefer Deposition of 3 nm Thick MFI Zeolite Nanosheets
Angewandte Chemie International Edition
- Year
- 2015
- ISSN
1433-7851- Type
- article
Data source split
- YÖKSİS YÖKSİS article record
- OpenAlex OpenAlex enrichment (abstract, citations, topics)
Abstract
English (OpenAlex)
Stable suspensions of zeolite nanosheets (3 nm thick MFI layers) were prepared in ethanol following acid treatment, which partially removed the associated organic structure-directing agent. Nanosheets from these suspensions could then be dispersed at the air-water interface and transferred to silicon wafers using Langmuir-Schaefer deposition. Using layer-by-layer deposition, control on coating thickness was demonstrated. In-plane X-ray diffraction (XRD) revealed that the deposited nanosheets contract upon calcination similar to bulk MFI crystals. Different methods for secondary growth resulted in preferentially oriented thin films of MFI, which had sub-12-nm thickness in certain cases. Upon calcination, there was no contraction detectable by in-plane XRD, indicating well-intergrown MFI films that are strongly attached to the substrate.
Topics
- Zeolite Catalysis and Synthesis
- Mesoporous Materials and Catalysis
- Advanced ceramic materials synthesis
Primary topic Zeolite Catalysis and Synthesis