Cited by 126Mesoporous Materials and CatalysisBlock Copolymer Self-AssemblyZeolite Catalysis and Synthesis

Ultra-Large-Pore Mesoporous Carbons Templated from Poly(ethylene oxide)-b-Polystyrene Diblock Copolymer by Adding Polystyrene Homopolymer as a Pore Expander

Deng, Yonghui, Liu, Jia, Liu, Chong, Gu, Dong, Sun, Zhenkun, Wei, Jing, Zhang, Junyong, Zhang, Lijuan +2 more·2008·Chemistry of Materials

Abstract

A pore swelling approach was developed for the synthesis of ultralarge mesoporous carbons by using diblock copolymer PEO 125 - b -PS 230 as a template, homopolystyrene ( h -PS 49 ) as a pore expander, resol as a carbon source, and THF as a solvent through solvent evaporation induced self-assembly (EISA). Small-angle X-ray scattering (SAXS) and transmission electron microscopy (TEM) characterizations show that when h -PS 94 amount is lower than 20 wt% relative to PEO 125 - b -PS 230, highly ordered face-center cubic (fcc) mesoporous carbon structure (space group Fm 3̅ m ) with ultralarge cell parameter of 46.4−58.0 nm can be obtained. Nitrogen sorption measurements reveal that the obtained LP-FDU-18s possess high surface area of about 1210 m 2 /g and large pore volume of 1.10 cm 3 /g. Because of adding pore swelling agent h -PS 49, the mesostructural shrinkage is restrained, the pore wall thickness becomes very thin (3.6 nm). With the increase of h -PS 49 addition amount from 0 to 20 wt%, the pore size can be continuously tuned in the range of 22.9−37.4 nm. Excess h -PS 49 addition can lead to foamlike disordered porous carbons with multimodal pore size distribution (40−90 nm). A continuous solubilizing process is proposed to explain the expansion of pore size and cell parameter. This approach could be extended to the synthesis of other large-pore mesoporous materials with different frameworks such as silica, silica-carbon composite, and metal oxides.

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Crossref · 10.1021/cm802413q

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  • Deng et al. reported the use of PS homopolymer as the pore expanding agent in the synthesis of mesoporous carbon, when PS-b-PEO is selected as the template.

    “Moreover, Deng et al. reported the use of PS homopolymer as the pore expanding agent in the synthesis of mesoporous carbon, when PS-b-PEO is selected as the template [159].”

    From Block Copolymers: Synthesis, Self-Assembly, and Applications (2017) · cites this paper as [159]

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Authors
Deng, Y., Liu, J., Liu, C., Gu, D., Sun, Z., Wei, J., Zhang, J., Zhang, L., Tu, B., & Zhao, D.
Affiliations
  • Fudan University (CN)
  • Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Key Laboratory of Molecular Engineering of Polymers of Ministry of Education and Advanced Materials Laboratory, Fudan University, Shanghai 200433, P. R. China
Corresponding author
Zhao, Dongyuan
Venue
Chemistry of Materials
Published
2008-11-08
Volume
20
Issue
23
Pages
7281-7286
ISSN
  • 0897-4756 (ISSN-L)
  • 1520-5002
OpenAlex
W1966998794
Cited by
126
References
32
Citations by year
2026: 1 · 2025: 3 · 2024: 7 · 2023: 2 · 2022: 7 · 2021: 13 · 2020: 4 · 2019: 9 · 2018: 2 · 2017: 4 · 2016: 3 · 2015: 10 · 2014: 14 · 2013: 13 · 2012: 16
FWCI
3.06
Type
journal article
Language
en
Open access
closed
Locations
Chemistry of Materials (publishedVersion)
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Mesoporous Materials and Catalysis
  • Physical Sciences › Materials Science › Materials Chemistry › Block Copolymer Self-Assembly
  • Physical Sciences › Chemistry › Inorganic Chemistry › Zeolite Catalysis and Synthesis
Keywords
evaporation-induced self-assembly, pore size control

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