期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 22, 期 27, 页码 13571-13577出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2jm31854g
关键词
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资金
- National Natural Science Foundation of China [21076094, 20743005]
The precise control of the surface chemistry, assembly processing, and size of each component is crucial to the construction of integrated functional nanocomposites. This article develops a novel in situ auto-reduction route, by which well dispersed silver nanoparticles can be easily fabricated in ordered mesoporous carbon. The mesoporous carbon functionalized with carboxylate groups was used to anchor glycol to form a novel reducing species (COOCH2CH2OH), on which Ag(NH3)(2)NO3 could be reduced in situ. Highly dispersed and small-sized Ag nanoparticles were thus obtained. The well designed composite has large surface area (836 m(2) g(-1)), highly open mesopores (similar to 4.2 nm), and stably confined but accessible Ag nanoparticles and, as a result, shows a high performance in the catalytic reduction of 4-nitrophenol (4-NP).
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