Monodisperse particles of bifunctional periodic mesoporous organosilica

Eun Bum Cho; Dukjoon Kim; Mietek Jaroniec

doi:10.1021/jp710772w

Monodisperse particles of bifunctional periodic mesoporous organosilica

Eun Bum Cho, Dukjoon Kim, Mietek Jaroniec

Dept. of Fine Chemistry

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

42 Scopus citations

Abstract

Monodisperse particles of periodic mesoporous organosilica (PMO) with ethane- and phenylene-bridging groups were prepared using 1,2- bis(triethoxysilyl)ethane (BTEE) and 1,4-bis(triethoxysilyl)benzene (BTEB) organosilica precursors, and a Pluronic P123 poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) triblock copolymer template under slightly acidic conditions. Highly ordered monodisperse particles having hexagonal mesostructure (p6mm) and coiled shape were obtained only for the BTEE/BTEB molar ratios between 70:30 and 60:40. The average external diameter of these coiled particles was about 2-3 μm, whereas the diameter of mesopores present in these particles was about 7.4 nm.

Original language	English
Pages (from-to)	4897-4902
Number of pages	6
Journal	Journal of Physical Chemistry C
Volume	112
Issue number	13
DOIs	https://doi.org/10.1021/jp710772w
State	Published - 3 Apr 2008

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title = "Monodisperse particles of bifunctional periodic mesoporous organosilica",

abstract = "Monodisperse particles of periodic mesoporous organosilica (PMO) with ethane- and phenylene-bridging groups were prepared using 1,2- bis(triethoxysilyl)ethane (BTEE) and 1,4-bis(triethoxysilyl)benzene (BTEB) organosilica precursors, and a Pluronic P123 poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) triblock copolymer template under slightly acidic conditions. Highly ordered monodisperse particles having hexagonal mesostructure (p6mm) and coiled shape were obtained only for the BTEE/BTEB molar ratios between 70:30 and 60:40. The average external diameter of these coiled particles was about 2-3 μm, whereas the diameter of mesopores present in these particles was about 7.4 nm.",

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T1 - Monodisperse particles of bifunctional periodic mesoporous organosilica

AU - Cho, Eun Bum

AU - Kim, Dukjoon

AU - Jaroniec, Mietek

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Y1 - 2008/4/3

N2 - Monodisperse particles of periodic mesoporous organosilica (PMO) with ethane- and phenylene-bridging groups were prepared using 1,2- bis(triethoxysilyl)ethane (BTEE) and 1,4-bis(triethoxysilyl)benzene (BTEB) organosilica precursors, and a Pluronic P123 poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) triblock copolymer template under slightly acidic conditions. Highly ordered monodisperse particles having hexagonal mesostructure (p6mm) and coiled shape were obtained only for the BTEE/BTEB molar ratios between 70:30 and 60:40. The average external diameter of these coiled particles was about 2-3 μm, whereas the diameter of mesopores present in these particles was about 7.4 nm.

AB - Monodisperse particles of periodic mesoporous organosilica (PMO) with ethane- and phenylene-bridging groups were prepared using 1,2- bis(triethoxysilyl)ethane (BTEE) and 1,4-bis(triethoxysilyl)benzene (BTEB) organosilica precursors, and a Pluronic P123 poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) triblock copolymer template under slightly acidic conditions. Highly ordered monodisperse particles having hexagonal mesostructure (p6mm) and coiled shape were obtained only for the BTEE/BTEB molar ratios between 70:30 and 60:40. The average external diameter of these coiled particles was about 2-3 μm, whereas the diameter of mesopores present in these particles was about 7.4 nm.

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U2 - 10.1021/jp710772w

DO - 10.1021/jp710772w

M3 - Article

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SN - 1932-7447

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JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 13

ER -

Monodisperse particles of bifunctional periodic mesoporous organosilica

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