Three-dimensional cubic (Im3m) periodic mesoporous organosilicas with benzene- and thiophene-bridging groups

Eun Bum Cho; Dukjoon Kim; Joanna Górka; Mietek Jaroniec

doi:10.1039/b817967k

Three-dimensional cubic (Im3m) periodic mesoporous organosilicas with benzene- and thiophene-bridging groups

Eun Bum Cho, Dukjoon Kim, Joanna Górka, Mietek Jaroniec

Dept. of Fine Chemistry

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

40 Scopus citations

Abstract

Three-dimensional cubic (Im3m) periodic mesoporous organosilicas with aromatic benzene- and thiophene-bridging groups were synthesized using 1,4-bis(triethoxysilyl)benzene and 2,5-bis(triethoxysilyl)thiophene as organosilica precursors in the presence of a F127 PEO-PPO-PEO triblock copolymer under acidic conditions. Highly ordered 3D cubic (Im3m) mesostructure was confirmed by synchrotron small angle X-ray scattering and transmission electron microscopy. Nitrogen adsorption analysis of the aforementioned samples (extracted and additionally calcined in nitrogen at 375-400 °C) revealed their high surface area (460-630 m² g^-1) and accessible ordered large pores (in the range of 6-9 nm). High thermal stability of these benzene- and thiophene-PMO samples (up to 500 and 400 °C, respectively) was confirmed by thermogravimetric analysis, while their framework chemistry was studied by solid-state ¹³C and ²⁹Si MAS NMR.

Original language	English
Pages (from-to)	2076-2081
Number of pages	6
Journal	Journal of Materials Chemistry
Volume	19
Issue number	14
DOIs	https://doi.org/10.1039/b817967k
State	Published - 2009

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title = "Three-dimensional cubic (Im3m) periodic mesoporous organosilicas with benzene- and thiophene-bridging groups",

abstract = "Three-dimensional cubic (Im3m) periodic mesoporous organosilicas with aromatic benzene- and thiophene-bridging groups were synthesized using 1,4-bis(triethoxysilyl)benzene and 2,5-bis(triethoxysilyl)thiophene as organosilica precursors in the presence of a F127 PEO-PPO-PEO triblock copolymer under acidic conditions. Highly ordered 3D cubic (Im3m) mesostructure was confirmed by synchrotron small angle X-ray scattering and transmission electron microscopy. Nitrogen adsorption analysis of the aforementioned samples (extracted and additionally calcined in nitrogen at 375-400 °C) revealed their high surface area (460-630 m2 g-1) and accessible ordered large pores (in the range of 6-9 nm). High thermal stability of these benzene- and thiophene-PMO samples (up to 500 and 400 °C, respectively) was confirmed by thermogravimetric analysis, while their framework chemistry was studied by solid-state 13C and 29Si MAS NMR.",

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year = "2009",

doi = "10.1039/b817967k",

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T1 - Three-dimensional cubic (Im3m) periodic mesoporous organosilicas with benzene- and thiophene-bridging groups

AU - Cho, Eun Bum

AU - Kim, Dukjoon

AU - Górka, Joanna

AU - Jaroniec, Mietek

PY - 2009

Y1 - 2009

N2 - Three-dimensional cubic (Im3m) periodic mesoporous organosilicas with aromatic benzene- and thiophene-bridging groups were synthesized using 1,4-bis(triethoxysilyl)benzene and 2,5-bis(triethoxysilyl)thiophene as organosilica precursors in the presence of a F127 PEO-PPO-PEO triblock copolymer under acidic conditions. Highly ordered 3D cubic (Im3m) mesostructure was confirmed by synchrotron small angle X-ray scattering and transmission electron microscopy. Nitrogen adsorption analysis of the aforementioned samples (extracted and additionally calcined in nitrogen at 375-400 °C) revealed their high surface area (460-630 m2 g-1) and accessible ordered large pores (in the range of 6-9 nm). High thermal stability of these benzene- and thiophene-PMO samples (up to 500 and 400 °C, respectively) was confirmed by thermogravimetric analysis, while their framework chemistry was studied by solid-state 13C and 29Si MAS NMR.

AB - Three-dimensional cubic (Im3m) periodic mesoporous organosilicas with aromatic benzene- and thiophene-bridging groups were synthesized using 1,4-bis(triethoxysilyl)benzene and 2,5-bis(triethoxysilyl)thiophene as organosilica precursors in the presence of a F127 PEO-PPO-PEO triblock copolymer under acidic conditions. Highly ordered 3D cubic (Im3m) mesostructure was confirmed by synchrotron small angle X-ray scattering and transmission electron microscopy. Nitrogen adsorption analysis of the aforementioned samples (extracted and additionally calcined in nitrogen at 375-400 °C) revealed their high surface area (460-630 m2 g-1) and accessible ordered large pores (in the range of 6-9 nm). High thermal stability of these benzene- and thiophene-PMO samples (up to 500 and 400 °C, respectively) was confirmed by thermogravimetric analysis, while their framework chemistry was studied by solid-state 13C and 29Si MAS NMR.

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U2 - 10.1039/b817967k

DO - 10.1039/b817967k

M3 - Article

AN - SCOPUS:63049087354

SN - 0959-9428

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JO - Journal of Materials Chemistry

JF - Journal of Materials Chemistry

IS - 14

ER -

Three-dimensional cubic (Im3m) periodic mesoporous organosilicas with benzene- and thiophene-bridging groups

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