期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 130, 期 3, 页码 1016-1021出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2011.08.023
关键词
Ordered mesoporous carbon; Carbonization; Adsorption; Triblock copolymer; Hard template method
资金
- National Natural Science Foundation of China [50872006]
- State Key Basic Research Program of China [2006CB9326022006]
Spheroidal ordered mesoporous carbon materials with diameter of 2-10 mu m were synthesized by direct carbonization of silica/triblock copolymer P123/butanol composites using P123 and butanol as the structure-directing agents and carbon precursors. The morphologies, structures and pore characteristics of the carbon materials were investigated by scanning and transmission electron microscopes, X-ray diffraction, and nitrogen sorption. It was found that the material possesses a cubic ordered mesoporous structure with Ia3d symmetry. The butanol addition directly affects the carbon morphology and pore structure. When the mass ratio of butanol to P123 is 0.5:1, the product exhibits a perfectly spheroidal morphology with a specific surface area of 1236 m(2) g(-1) and a total pore volume of 1.26 cm(3) g(-1). The formation mechanism of the spheroidal ordered mesoporous carbon materials is discussed briefly. (C) 2011 Elsevier B.V. All rights reserved.
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