Transmission electron microscopy observation on fine structure of zeolite NaA membrane

Zheng Liu; Tetsu Ohsuna; Kiminori Sato; Takehito Mizuno; Tomohiro Kyotani; Takashi Nakane; Osamu Terasaki

doi:10.1021/cm051597q

Transmission electron microscopy observation on fine structure of zeolite NaA membrane

Zheng Liu, Tetsu Ohsuna^*, Kiminori Sato, Takehito Mizuno, Tomohiro Kyotani, Takashi Nakane, Osamu Terasaki

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

41 Citations (Scopus)

Abstract

Fine structure of a high-performance zeolite NaA membrane filter for water/ethanol separation was investigated by transmission electron microscopy (TEM); the samples were prepared by ion milling and focused ion beam (FIB) techniques. The NaA membrane consists of a top layer with a thickness of 2-3 μm and a composite layer where the thickness is larger than 5 μm. NaA crystallites in the top layer show a columnar morphology toward an external surface, and a high-density amorphous phase is observed at the grain boundary between NaA crystallites. In the composite layer, NaA crystallites form an uncertain shape with many voids of various sizes at the triple point of NaA crystals' grain boundary.

Original language	English
Pages (from-to)	922-927
Number of pages	6
Journal	Chemistry of Materials
Volume	18
Issue number	4
DOIs	https://doi.org/10.1021/cm051597q
Publication status	Published - Feb 21 2006
Externally published	Yes

ASJC Scopus Subject Areas

General Chemistry
General Chemical Engineering
Materials Chemistry

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abstract = "Fine structure of a high-performance zeolite NaA membrane filter for water/ethanol separation was investigated by transmission electron microscopy (TEM); the samples were prepared by ion milling and focused ion beam (FIB) techniques. The NaA membrane consists of a top layer with a thickness of 2-3 μm and a composite layer where the thickness is larger than 5 μm. NaA crystallites in the top layer show a columnar morphology toward an external surface, and a high-density amorphous phase is observed at the grain boundary between NaA crystallites. In the composite layer, NaA crystallites form an uncertain shape with many voids of various sizes at the triple point of NaA crystals' grain boundary.",

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T1 - Transmission electron microscopy observation on fine structure of zeolite NaA membrane

AU - Liu, Zheng

AU - Ohsuna, Tetsu

AU - Sato, Kiminori

AU - Mizuno, Takehito

AU - Kyotani, Tomohiro

AU - Nakane, Takashi

AU - Terasaki, Osamu

PY - 2006/2/21

Y1 - 2006/2/21

N2 - Fine structure of a high-performance zeolite NaA membrane filter for water/ethanol separation was investigated by transmission electron microscopy (TEM); the samples were prepared by ion milling and focused ion beam (FIB) techniques. The NaA membrane consists of a top layer with a thickness of 2-3 μm and a composite layer where the thickness is larger than 5 μm. NaA crystallites in the top layer show a columnar morphology toward an external surface, and a high-density amorphous phase is observed at the grain boundary between NaA crystallites. In the composite layer, NaA crystallites form an uncertain shape with many voids of various sizes at the triple point of NaA crystals' grain boundary.

AB - Fine structure of a high-performance zeolite NaA membrane filter for water/ethanol separation was investigated by transmission electron microscopy (TEM); the samples were prepared by ion milling and focused ion beam (FIB) techniques. The NaA membrane consists of a top layer with a thickness of 2-3 μm and a composite layer where the thickness is larger than 5 μm. NaA crystallites in the top layer show a columnar morphology toward an external surface, and a high-density amorphous phase is observed at the grain boundary between NaA crystallites. In the composite layer, NaA crystallites form an uncertain shape with many voids of various sizes at the triple point of NaA crystals' grain boundary.

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Transmission electron microscopy observation on fine structure of zeolite NaA membrane

Abstract

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