Zeolite (MFI) crystal morphology control using organic structure-directing agents

Griselda Bonilla; Isabel Díaz; Michael Tsapatsis; Hae Kwon Jeong; Yongjae Lee; Dionisios G. Vlachos

doi:10.1021/cm048854w

Zeolite (MFI) crystal morphology control using organic structure-directing agents

Griselda Bonilla, Isabel Díaz, Michael Tsapatsis, Hae Kwon Jeong, Yongjae Lee, Dionisios G. Vlachos

Chemical Engineering and Materials Science

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

162 Scopus citations

Abstract

The effect of structure-directing agents (SDAs) on zeolite particle morphology and crystal structure was studied. Dimers and trimers of tetrapropylammonium hydroxide-the SDA of siliceous ZSM-5 (silicalite-1, structure type MFI)-lead to direct growth of the same framework but with drastically different crystal morphologies. Control over relative crystal growth rates along the three main crystallographic axes is demonstrated by obtaining crystals with their longest dimension along any of these axes. Unit cell dimensions and crystal structure were determined by refinement based on powder X-ray diffraction data and electron microscopy, respectively. The importance of the new morphologies in thin film molecular sieve technology along with possible crystal growth mechanisms is discussed.

Original language	English (US)
Pages (from-to)	5697-5705
Number of pages	9
Journal	Chemistry of Materials
Volume	16
Issue number	26
DOIs	https://doi.org/10.1021/cm048854w
State	Published - Dec 28 2004

Access

10.1021/cm048854w

OpenUrl availability

Full text

Cite this

@article{49e1a71c57c34694b9cce49f45f13310,

title = "Zeolite (MFI) crystal morphology control using organic structure-directing agents",

abstract = "The effect of structure-directing agents (SDAs) on zeolite particle morphology and crystal structure was studied. Dimers and trimers of tetrapropylammonium hydroxide-the SDA of siliceous ZSM-5 (silicalite-1, structure type MFI)-lead to direct growth of the same framework but with drastically different crystal morphologies. Control over relative crystal growth rates along the three main crystallographic axes is demonstrated by obtaining crystals with their longest dimension along any of these axes. Unit cell dimensions and crystal structure were determined by refinement based on powder X-ray diffraction data and electron microscopy, respectively. The importance of the new morphologies in thin film molecular sieve technology along with possible crystal growth mechanisms is discussed.",

author = "Griselda Bonilla and Isabel D{\'i}az and Michael Tsapatsis and Jeong, {Hae Kwon} and Yongjae Lee and Vlachos, {Dionisios G.}",

year = "2004",

month = dec,

day = "28",

doi = "10.1021/cm048854w",

language = "English (US)",

volume = "16",

pages = "5697--5705",

journal = "Chemistry of Materials",

issn = "0897-4756",

publisher = "American Chemical Society",

number = "26",

}

TY - JOUR

T1 - Zeolite (MFI) crystal morphology control using organic structure-directing agents

AU - Bonilla, Griselda

AU - Díaz, Isabel

AU - Tsapatsis, Michael

AU - Jeong, Hae Kwon

AU - Lee, Yongjae

AU - Vlachos, Dionisios G.

PY - 2004/12/28

Y1 - 2004/12/28

N2 - The effect of structure-directing agents (SDAs) on zeolite particle morphology and crystal structure was studied. Dimers and trimers of tetrapropylammonium hydroxide-the SDA of siliceous ZSM-5 (silicalite-1, structure type MFI)-lead to direct growth of the same framework but with drastically different crystal morphologies. Control over relative crystal growth rates along the three main crystallographic axes is demonstrated by obtaining crystals with their longest dimension along any of these axes. Unit cell dimensions and crystal structure were determined by refinement based on powder X-ray diffraction data and electron microscopy, respectively. The importance of the new morphologies in thin film molecular sieve technology along with possible crystal growth mechanisms is discussed.

AB - The effect of structure-directing agents (SDAs) on zeolite particle morphology and crystal structure was studied. Dimers and trimers of tetrapropylammonium hydroxide-the SDA of siliceous ZSM-5 (silicalite-1, structure type MFI)-lead to direct growth of the same framework but with drastically different crystal morphologies. Control over relative crystal growth rates along the three main crystallographic axes is demonstrated by obtaining crystals with their longest dimension along any of these axes. Unit cell dimensions and crystal structure were determined by refinement based on powder X-ray diffraction data and electron microscopy, respectively. The importance of the new morphologies in thin film molecular sieve technology along with possible crystal growth mechanisms is discussed.

UR - http://www.scopus.com/inward/record.url?scp=10944226335&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=10944226335&partnerID=8YFLogxK

U2 - 10.1021/cm048854w

DO - 10.1021/cm048854w

M3 - Article

AN - SCOPUS:10944226335

SN - 0897-4756

VL - 16

SP - 5697

EP - 5705

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 26

ER -

Zeolite (MFI) crystal morphology control using organic structure-directing agents

Abstract

Access

OpenUrl availability

Other files and links

Fingerprint

Cite this