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Citation: WANG Zhou-Xiang, YAN Wen-Fu, TIAN Da-Yong, CAO Xue-Jing, YU Ji-Hong, Xu Ru-Ren. Preparation of Highly b-Oriented Silicalite-1 Films[J]. Acta Physico-Chimica Sinica doi: 10.3866/PKU.WHXB20100714 shu

Preparation of Highly b-Oriented Silicalite-1 Films

1.
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, P. R. China

Received Date: 29 January 2010
Available Online: 21 May 2010

Using tetraethylorthosilicate (TEOS) as a silicon source and tetrapropylammonium hydroxide (TPAOH) as a structure-directing agent, we prepared highly b-oriented silicalite-1 thin films with smooth surfaces and excellent continuity by optimizing the preparation parameters such as the gel composition and reaction time. The influence of gel composition and substrate surface roughness on the orientation, size, and distribution of the microcrystals in the silicalite-1 thin films were investigated. We achieved highly orientated silicalite-1 crystal growth on the substrates as well as excellent control of crystal size and filmmicrostructure. The preparation procedure reported here is feasible and has excellent reproducibility. In addition, the thin films were further characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD).
- Zeolite,
- Silicalite-1,
- Film,
- In situ hydrothermal crystallization,
- b-Orientation
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沈阳化工大学材料科学与工程学院沈阳 110142

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