Synthesis, characterization and gas sorption properties of a molecularly-derived graphite oxide-like foam

被引：65

作者：

Bourlinos, A. B.

Steriotis, Th. A.

Karakassides, M.

Sanakis, Y.

Tzitzios, V.

Trapalis, C.

Kouvelos, E.

Stubos, A.

机构：

[1] NCSR Demokritos, Inst Mat Sci, GR-15310 Athens, Greece

[2] NCSR Demokritos, Inst Phys Chem, GR-15310 Athens, Greece

[3] Univ Ioannina, Dept Mat Sci & Engn, GR-45110 Ioannina, Greece

[4] NCSR Demokritos, Environm Res Lab, Inst Nucl Technol & Radiat Protect, GR-15310 Athens, Greece

来源：

CARBON | 2007年 / 45卷 / 04期

关键词：

CARBON; SOOT;

D O I：

10.1016/j.carbon.2006.11.008

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：

Calcination of the molecular precursor sodium chloranilate dihydrate at 300 degrees C in air leads to a foam-type graphite oxide-like derivative that is lightweight, has a high surface area and porosity, and contains oxygen in the concentration range of conventional graphite oxide. Characterization with a variety of techniques revealed that the porous network consists of interconnected bundles (crystallites) of turbostratically stacked graphene layers built up of aromatic and aliphatic domains and with polar hydrophilic groups pending on the outer surface. The EPR study unveiled. an unusually high spin concentration that possibly endows the material with extra functionalities/reactivity. The foam selectively absorbs CO2 but shows a low adsorption capacity towards N-2, CH4 and H-2 gases. The material strongly sorbs CO in the absence of metal catalysts. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：852 / 857

页数：6

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