期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 218, 期 -, 页码 538-544出版社
ELSEVIER
DOI: 10.1016/j.apcatb.2017.06.086
关键词
Platinum catalyst; Encapsulation; Oxidation; Ethanol; Glycerol
资金
- National Natural Science Foundation of China [21473155, 21273198]
- Natural Science Foundation of Zhejiang Province [L12B03001]
Platinum is one of the best catalysts for various applications, but the deactivation of Pt nanoparticles (NPs) during alcohol oxidation is a major barrier to commercialization. In this work, multiwall carbon nanotubes supported carbon film encapsulated Pt NPs (Pt@C-MWCNTs) was synthesized and used in the selective oxidation of ethanol and glycerol in acidic aqueous solution. It was found that Pt@C-MWCNTs exhibited both higher activity and stability than bare Pt NPs. Characterization indicated that carbon film encapsulation can overcome the sintering, leaching and over-oxidation of Pt NPs during the reaction. Moreover, carbon film may also prevent the strong adsorption of organic carboxylic acid on Pt. (C) 2017 Elsevier B.V. All rights reserved.
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