Silicalite-1 crystals with modified morphology: HRTEM imaging and synthesis of b-oriented films

I. Díaz; G. Bonilla; Z. Lai; O. Terasaki; D. G. Vlachos; M. Tsapatsis

doi:10.1016/s0167-2991(04)80623-2

Silicalite-1 crystals with modified morphology: HRTEM imaging and synthesis of b-oriented films

I. Díaz^*, G. Bonilla, Z. Lai, O. Terasaki, D. G. Vlachos, M. Tsapatsis

^*Corresponding author for this work

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

5 Scopus citations

Abstract

Silicalite-1 crystals with a modified shape have been synthesized using organic polycations (dimer and trimer TPA) as zeolite shape modifiers to enhance the relative growth rate along the b-axis (straight channels). The crystal surface microstructure and subsequent identification of the crystal lographic faces has been analyzed using High Resolution Transmission Electron Microscopy (HRTEM) and Selected Area Electron Diffraction (SAED). The modified morphology enabled the fabrication of b-oriented silicalite-1 membranes that show the best performance reported up to now in xylene separation. A method based on growth of an oriented seed layer to a well-packed film is also reported here.

Original language	English (US)
Pages (from-to)	1160-1167
Number of pages	8
Journal	Studies in Surface Science and Catalysis
Volume	154 B
DOIs	https://doi.org/10.1016/s0167-2991(04)80623-2
State	Published - 2004
Externally published	Yes

Keywords

Crystal morphology
HRTEM
Silicalite-1 membranes
Xylene separation
b-oriented

ASJC Scopus subject areas

Catalysis
Condensed Matter Physics
Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/s0167-2991(04)80623-2

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title = "Silicalite-1 crystals with modified morphology: HRTEM imaging and synthesis of b-oriented films",

abstract = "Silicalite-1 crystals with a modified shape have been synthesized using organic polycations (dimer and trimer TPA) as zeolite shape modifiers to enhance the relative growth rate along the b-axis (straight channels). The crystal surface microstructure and subsequent identification of the crystal lographic faces has been analyzed using High Resolution Transmission Electron Microscopy (HRTEM) and Selected Area Electron Diffraction (SAED). The modified morphology enabled the fabrication of b-oriented silicalite-1 membranes that show the best performance reported up to now in xylene separation. A method based on growth of an oriented seed layer to a well-packed film is also reported here.",

keywords = "Crystal morphology, HRTEM, Silicalite-1 membranes, Xylene separation, b-oriented",

author = "I. D{\'i}az and G. Bonilla and Z. Lai and O. Terasaki and Vlachos, {D. G.} and M. Tsapatsis",

year = "2004",

doi = "10.1016/s0167-2991(04)80623-2",

language = "English (US)",

volume = "154 B",

pages = "1160--1167",

journal = "Studies in Surface Science and Catalysis",

issn = "0167-2991",

publisher = "Elsevier Inc.",

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TY - JOUR

T1 - Silicalite-1 crystals with modified morphology

T2 - HRTEM imaging and synthesis of b-oriented films

AU - Díaz, I.

AU - Bonilla, G.

AU - Lai, Z.

AU - Terasaki, O.

AU - Vlachos, D. G.

AU - Tsapatsis, M.

PY - 2004

Y1 - 2004

N2 - Silicalite-1 crystals with a modified shape have been synthesized using organic polycations (dimer and trimer TPA) as zeolite shape modifiers to enhance the relative growth rate along the b-axis (straight channels). The crystal surface microstructure and subsequent identification of the crystal lographic faces has been analyzed using High Resolution Transmission Electron Microscopy (HRTEM) and Selected Area Electron Diffraction (SAED). The modified morphology enabled the fabrication of b-oriented silicalite-1 membranes that show the best performance reported up to now in xylene separation. A method based on growth of an oriented seed layer to a well-packed film is also reported here.

AB - Silicalite-1 crystals with a modified shape have been synthesized using organic polycations (dimer and trimer TPA) as zeolite shape modifiers to enhance the relative growth rate along the b-axis (straight channels). The crystal surface microstructure and subsequent identification of the crystal lographic faces has been analyzed using High Resolution Transmission Electron Microscopy (HRTEM) and Selected Area Electron Diffraction (SAED). The modified morphology enabled the fabrication of b-oriented silicalite-1 membranes that show the best performance reported up to now in xylene separation. A method based on growth of an oriented seed layer to a well-packed film is also reported here.

KW - Crystal morphology

KW - HRTEM

KW - Silicalite-1 membranes

KW - Xylene separation

KW - b-oriented

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U2 - 10.1016/s0167-2991(04)80623-2

DO - 10.1016/s0167-2991(04)80623-2

M3 - Article

AN - SCOPUS:11844288294

SN - 0167-2991

VL - 154 B

SP - 1160

EP - 1167

JO - Studies in Surface Science and Catalysis

JF - Studies in Surface Science and Catalysis

ER -

Silicalite-1 crystals with modified morphology: HRTEM imaging and synthesis of b-oriented films

Abstract

Keywords

ASJC Scopus subject areas

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