AFM characterization of the growth of MFI-type zeolite films on alumina substrates

作者：Vilaseca M; Mateo E; Palacio L; Pradanos P; Hernandez A; Paniagua A; Coronas J^*; Santamaria J

来源：Microporous and Mesoporous Materials, 2004, 71(1-3): 33-37.

DOI：10.1016/j.micromeso.2004.03.020

• AFM
• MFI-type zeolite
• zeolite supported growth
• zeolite membrane
• large zeolite crystal

Layers of b-oriented silicalite crystals formed on alumina substrates were characterized by SEM and AFM. At short synthesis times, small 10-40 nm nuclei were found on the surfaces of the alumina particles of the support and also on the faces of well developed silicalite crystals. After a certain period of time, these nuclei are dissolved or incorporated into the growing crystals and only crystal growth can be observed. Large silicalite crystals (up to 3 mm in size) were also synthesized as a way to obtain a silicalite standard. The nanostructure of the nuclei above mentioned revealed by AFM was in agreement with that of a well growth large silicalite crystal.

• 出版日期2004-6-17