Adsorption properties of various carbon materials prepared by template synthesis route

被引：23

作者：

Garsuch, A ^{[1
]}

Sattler, RR ^{[1
]}

Witt, S ^{[1
]}

Klepel, O ^{[1
]}

机构：

[1] Univ Leipzig, Inst Tech Chem, D-04103 Leipzig, Germany

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2006年 / 89卷 / 1-3期

关键词：

porous carbon; carbonization; adsorption; porosity;

D O I：

10.1016/j.micromeso.2005.10.018

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In the present study highly porous carbon materials were synthesized by applying a template assisted synthesis route. Ethylene, pyrrole and styrene have been used as carbon precursors and H-form Y zeolite as well as mesoporous silica gel as templates. The obtained carbons have apparent BET surface areas reaching from 900 to 2000 m(2)/g and pore volumes of 0.5-2.0 cm(3)/g. The total amount of adsorbed water varied from 23 to 85 mmol/g according to the textural properties of prepared carbon samples determined by nitrogen physisorption. Pyrrole carbon samples show a significantly higher water adsorption at low relative pressure. The higher surface polarity could be related to incorporated nitrogen atoms in corresponding carbon materials, whereas nitrogen contents up to 9 at.% were observed. The chemical and physical properties of prepared carbon materials were investigated by nitrogen adsorption, X-ray photoelectron spectroscopy, elemental analysis and thermal analysis. Water adsorption experiments have been carried out by using a magnetic suspension balance. (c) 2005 Elsevier Inc. All rights reserved.

引用

页码：164 / 169

页数：6

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