期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 361, 期 2, 页码 503-508出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2011.06.021
关键词
Colloidal silica particles; Macroporous carbon spheres; Pt nanoparticles; Methanol oxidation
资金
- National Natural Science Foundation of China (NSFC) [21073127, 21071104, 20801010, 20803008]
- Foundation for the Author of National Excellent Doctoral Dissertation of P R China (FANEDD) [200929]
- Jiangsu Higher Education Institutions
Highly ordered three dimensionally macroporous carbon spheres (3DMPCS) were successfully prepared against removable colloidal silica crystal bead templates by carbonization of glucose. The unique structural characteristics of the well-developed three dimensionally interconnected macropores were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and nitrogen adsorption. The 3DMPCS have uniform large pore structures with size about 250 nm. Pt nanoparticles were supported on the macroporous carbon spheres by two aqueous impregnation methods, and it was found that the 3DMPCS supported Pt exhibited high electrocatalytic activity for methanol oxidation. (C) 2011 Elsevier Inc. All rights reserved.
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