Synthesis and properties of mesoporous carbons with high loadings of inorganic species

被引：57

作者：

Jaroniec, Mietek ^{[1
]}

Gorka, Joanna ^{[1
]}

Choma, Jerzy ^{[2
]}

Zawislak, Aleksandra ^{[2
]}

机构：

[1] Kent State Univ, Dept Chem, Kent, OH 44242 USA

[2] Mil Tech Acad, Inst Chem, PL-00908 Warsaw, Poland

来源：

CARBON | 2009年 / 47卷 / 13期

关键词：

MOLECULAR-SIEVES; POROUS CARBONS; TEMPLATE SYNTHESIS; NANOPOROUS CARBON; FACILE SYNTHESIS; SILICA; NANOCOMPOSITES; NANOPARTICLES; STRATEGY; PORES;

D O I：

10.1016/j.carbon.2009.06.059

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A series of mesoporous carbons with high loading of silica has been synthesized by acid-catalyzed polymerization of resorcinol and formaldehyde in the presence of tetraethyl orthosilicate (TEOS), colloidal silica (silica source) and poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) triblock copolymer (soft template) followed by carbonization. This synthesis route can be considered as a combination of soft-templating and hard templating strategies. The resulting mesoporous silica-carbon composites contained spherical silica colloids in addition to uniformly distributed silica originated from TEOS, Dissolution of silica led to high surface area carbons, which in addition to the primary mesopores formed by thermal degradation of block copolymer template possessed spherical mesopores after dissolution of silica colloids and fine pores after removal of TEOS-generated silica species. This approach can be used to incorporate other inorganic nanoparticles into mesoporous carbons with extra microporosity created after dissolving TEOS-generated silica species. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：3034 / 3040

页数：7

共 35 条

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