One-pot synthesis of ordered mesoporous silver nanoparticle/carbon composites for catalytic reduction of 4-nitrophenol

[Display omitted] •Controllable formation of mesoporous Ag/carbon composites by a “one-pot” assembly strategy.•Large specific surface area, high content of nanosized Ag can be easily obtained and tuned.•Excellent catalytic activity toward the reduction of 4-nitrophenol. Ordered mesoporous silver nan...

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Veröffentlicht in:Journal of colloid and interface science 2014-06, Vol.423 (423), p.54-59
Hauptverfasser: Chi, Yue, Tu, Jinchun, Wang, Minggang, Li, Xiaotian, Zhao, Zhankui
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Sprache:eng
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Zusammenfassung:[Display omitted] •Controllable formation of mesoporous Ag/carbon composites by a “one-pot” assembly strategy.•Large specific surface area, high content of nanosized Ag can be easily obtained and tuned.•Excellent catalytic activity toward the reduction of 4-nitrophenol. Ordered mesoporous silver nanoparticle/carbon composites have been produced by a “one-pot” synthesis method. They have open mesopores (4.2–5.0nm), large specific surface areas (465–584m2g−1) and high pore volumes (0.29–0.50cm3g−1) and contain stable, confined but accessible Ag nanoparticles. As a result, they show high performance in catalytic reduction of 4-nitrophenol (4-NP). The mesostructure and particle size as a function of Ag content were studied and correlated with the catalytic activity. The ordered mesoporous carbon framework and highly dispersed Ag nanoparticles make the material a novel system for effective contacting with the reactants and catalysis of the reaction.
ISSN:0021-9797
1095-7103
DOI:10.1016/j.jcis.2014.02.029