Capping agent-free highly dispersed noble metal nanoparticles supported in ordered mesoporous carbon with short channels and their catalytic applications. Issue 66 (24th June 2016)

• Record Type: Journal Article
• Authors: Gao, Wenjun; Li, Siwen; Pal, Manas; Liu, Yong; Wan, Xiaoyue; Li, Wei; Wang, Shuai; Wang, Changyao; Zheng, Gengfeng; Zhao, Dongyuan
• Is Part Of: RSC advances. Volume 6:Issue 66(2016)
• Page Start: 61064
• Page End: 61072
• Publication Date: 2016-06-24
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra10636f
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Capping agent free synthesis of noble metal nanoparticles supported on ordered mesoporous carbon with short channels. Abstract : Homogeneously dispersed small noble metal nanoparticles such as Pt and Au supported on ordered mesoporous carbon nanospheres have been successfully synthesized via a facile hydrothermal method without using any capping agent and further post-treated with reducing agent. The average sizes of the Pt and Au nanoparticles are estimated to be ∼1.7 and ∼5 nm. The small size of the nanoparticles and short length channels of mesopores greatly improve their catalytic properties. As proof-of-concept, the catalytic performances of the mesoporous metal/C composites are investigated using the reduction of 4-nitrophenol as a model reaction. Furthermore, the catalytic activity of the obtained catalysts for oxidation of benzyl alcohol to benzoic acid in the presence of O2 at 60 °C is also investigated. The results demonstrate that such mesoporous carbon supported metal nanoparticles can be used as reusable catalysts with high catalytic activity.