HRTEM imaging of mesoporous phase transition from hexagonal P6mm to cubic Ia 3̄d symmetry

A. E. Garcia-Bennett; R. P. Hodgkins; T. Sen; M. W. Anderson; P. A. Wright

HRTEM imaging of mesoporous phase transition from hexagonal P6mm to cubic Ia 3̄d symmetry

A. E. Garcia-Bennett^*, R. P. Hodgkins, T. Sen, M. W. Anderson, P. A. Wright

^*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

The successful synthesis of large pore bicontinuous cubic mesoporous solid using the triblock co-polymer PEO-PPO-PEO (P123) as a template and 3-mercaptopropyltriethoxysilane (MPTS) and tetraethylorthosilicate (TEOS) as silica sources has been recently reported. We present here High Resolution Transmission Electron Microscopy (HRTEM) imaging of samples of these and related mesoporous materials prepared under aqueous and hydrothermal conditions. This provides evidence suggesting that the transition from the hexagonal to cubic bicontinuous structure is governed by the amount of MPTS added to the synthesis gel and the synthesis temperature, for conditions described. In addition we also investigate the formation of the bicontinuous cubic structure analogous to MCM-48 through the addition organosilane phenyltriethoxysilane.

Original language	English
Pages (from-to)	400-407
Number of pages	8
Journal	Studies in Surface Science and Catalysis
Volume	154 A
Publication status	Published - 2004
Externally published	Yes

Cite this

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title = "HRTEM imaging of mesoporous phase transition from hexagonal P6mm to cubic Ia {\=3}d symmetry",

abstract = "The successful synthesis of large pore bicontinuous cubic mesoporous solid using the triblock co-polymer PEO-PPO-PEO (P123) as a template and 3-mercaptopropyltriethoxysilane (MPTS) and tetraethylorthosilicate (TEOS) as silica sources has been recently reported. We present here High Resolution Transmission Electron Microscopy (HRTEM) imaging of samples of these and related mesoporous materials prepared under aqueous and hydrothermal conditions. This provides evidence suggesting that the transition from the hexagonal to cubic bicontinuous structure is governed by the amount of MPTS added to the synthesis gel and the synthesis temperature, for conditions described. In addition we also investigate the formation of the bicontinuous cubic structure analogous to MCM-48 through the addition organosilane phenyltriethoxysilane.",

author = "Garcia-Bennett, {A. E.} and Hodgkins, {R. P.} and T. Sen and Anderson, {M. W.} and Wright, {P. A.}",

year = "2004",

language = "English",

volume = "154 A",

pages = "400--407",

journal = "Studies in Surface Science and Catalysis",

issn = "0167-2991",

publisher = "Elsevier",

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TY - JOUR

T1 - HRTEM imaging of mesoporous phase transition from hexagonal P6mm to cubic Ia 3̄d symmetry

AU - Garcia-Bennett, A. E.

AU - Hodgkins, R. P.

AU - Sen, T.

AU - Anderson, M. W.

AU - Wright, P. A.

PY - 2004

Y1 - 2004

N2 - The successful synthesis of large pore bicontinuous cubic mesoporous solid using the triblock co-polymer PEO-PPO-PEO (P123) as a template and 3-mercaptopropyltriethoxysilane (MPTS) and tetraethylorthosilicate (TEOS) as silica sources has been recently reported. We present here High Resolution Transmission Electron Microscopy (HRTEM) imaging of samples of these and related mesoporous materials prepared under aqueous and hydrothermal conditions. This provides evidence suggesting that the transition from the hexagonal to cubic bicontinuous structure is governed by the amount of MPTS added to the synthesis gel and the synthesis temperature, for conditions described. In addition we also investigate the formation of the bicontinuous cubic structure analogous to MCM-48 through the addition organosilane phenyltriethoxysilane.

AB - The successful synthesis of large pore bicontinuous cubic mesoporous solid using the triblock co-polymer PEO-PPO-PEO (P123) as a template and 3-mercaptopropyltriethoxysilane (MPTS) and tetraethylorthosilicate (TEOS) as silica sources has been recently reported. We present here High Resolution Transmission Electron Microscopy (HRTEM) imaging of samples of these and related mesoporous materials prepared under aqueous and hydrothermal conditions. This provides evidence suggesting that the transition from the hexagonal to cubic bicontinuous structure is governed by the amount of MPTS added to the synthesis gel and the synthesis temperature, for conditions described. In addition we also investigate the formation of the bicontinuous cubic structure analogous to MCM-48 through the addition organosilane phenyltriethoxysilane.

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M3 - Article

AN - SCOPUS:11844262635

SN - 0167-2991

VL - 154 A

SP - 400

EP - 407

JO - Studies in Surface Science and Catalysis

JF - Studies in Surface Science and Catalysis

ER -

HRTEM imaging of mesoporous phase transition from hexagonal P6mm to cubic Ia 3̄d symmetry

Abstract

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