Direct synthesis of uniform mesoporous carbons from the carbonization of as-synthesized silica/triblock copolymer nanocomposites

被引：126

作者：

Kim, J ^{[1
]}

Lee, J ^{[1
]}

Hyeon, T ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Chem Engn, Natl Creat Res Inititat Ctr Oxide Nanocrystalline, Kwanak Gu, Seoul 151744, South Korea

来源：

CARBON | 2004年 / 42卷 / 12-13期

关键词：

porous carbon; carbonization; electron microscopy; BET surface area;

D O I：

10.1016/j.carbon.2004.06.018

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：

Mesocellular carbon foams and ordered mesoporous carbon materials were synthesized from the direct carbonization of as-synthesized silica/triblock copolymer nanocomposites. As-synthesized silica (MCF, SBA-15)/triblock copolymer nanocomposite was treated with sulfuric acid to cross-link the triblock copolymers and the resulting silica/cross-linked triblock copolymer nanocomposite was carbonized, followed by the removal of silica to produce final mesoporous carbon. In the current direct synthesis of mesoporous carbons, P123 triblock copolymer was employed as both a carbon precursor and a structure-directing agent. Moreover, it is possible to synthesize ordered mesoporous carbon materials from the direct carbonization of mesostructured silica/triblock copolymer nanocomposites by performing the acid catalyzed sol-gel polymerization using sulfuric acid instead of hydrochloric acid. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：2711 / 2719

页数：9

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