Preparation and characterization of carbon cryogel microspheres

被引：136

作者：

Yamamoto, T ^{[1
]}

Sugimoto, T ^{[1
]}

Suzuki, T ^{[1
]}

Mukai, SR ^{[1
]}

Tamon, H ^{[1
]}

机构：

[1] Kyoto Univ, Dept Chem Engn, Kyoto 6068501, Japan

来源：

CARBON | 2002年 / 40卷 / 08期

基金：

日本学术振兴会;

关键词：

carbon microbeads; pyrolysis; adsorption; scanning electron microscopy; adsorption properties;

D O I：

10.1016/S0008-6223(01)00294-9

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：

Carbon cryogel microspheres (CC microspheres) were successfully synthesized by an inverse emulsion polymerization of resorcinol with formaldehyde, followed by freeze drying and pyrolysis in an inert atmosphere. CC microspheres were characterized by scanning electron microscopy, elemental analysis and various gas adsorption measurements. By changing both the temperature for preparing the emulsion and pyrolysis temperature. it was possible to prepare both mesoporous microspheres and microspheres covered with ultramicroporous surfaces which pore sizes were smaller than the minimum molecular dimensions of ethane or carbon dioxide. Hydrophobicity of the obtained CC microspheres increased with the increase in pyrolysis temperature. The possibility of using the obtained mesoporous CC microspheres as column packing materials for high-performance liquid chromatography was also shown. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：1345 / 1351

页数：7

共 14 条

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