Synthesis of macro/mesoporous silica and carbon monoliths by using a commercial polyurethane foam as sacrificial template

被引：39

作者：

Alvarez, Sonia ^{[1
]}

Fuertes, Antonio B. ^{[1
]}

机构：

[1] CSIC, Inst Nacl Carbon, Dept Chem Mat, E-33080 Oviedo, Spain

来源：

MATERIALS LETTERS | 2007年 / 61卷 / 11-12期

关键词：

carbon; macrocellular; mesopores; monolith; porosity; polymer;

D O I：

10.1016/j.matlet.2006.09.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A commercial macrocellular polyurethane foam was used as template to fabricate macro/mesoporous silica and carbon monoliths. These materials have a cellular structure which is a faithful replica of that of the polymeric foam. In addition, they have a high surface area and a large porosity made up of accessible mesopores. The synthesis of silica monoliths was carried out by impregnating the polymeric foam with a mixture of a silica precursor and a surfactant. The carbon monoliths were prepared by using the silica monoliths as sacrificial templates. They retain the foamy vesicular structure and exhibit a high surface area of 1800 m(2) g(-1) and a large porosity made up of framework-confined mesopores of around 3.4 nm. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：2378 / 2381

页数：4

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