Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 53, Issue 14, Pages 5925-5931Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ie5002718
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Funding
- Chinese Academy of Sciences
- National Natural Science Foundation of China [21173226, 21376247]
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences [MPCS-2012-A-11, MPCS-2011-D-08, MPCS-2010-C-02]
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Noble metal nanoparticles with hollow interiors and customizable shell compositions have immense potential for catalysis. Herein, we present a universal and cost-effective approach for the fabrication of carbon-supported Pt-containing noble metal nanoparticles with hollow interiors. This strategy starts with the synthesis of Pt-containing core shell Ag noble metal nanoparticles, which are then loaded on the carbon supports and refluxed in acetic acid to remove the original organic surfactant. The carbon-supported Pt-containing core shell Ag noble metal nanoparticles are subsequently agitated in saturated Na2S or NaCl solution to eliminate Ag from the core region, leading to the formation of Pt-containing noble metal nanoparticles with hollow interiors. In particular, the Pt-containing core shell Ag noble metal nanoparticles hollowed by NaCl on carbon support exhibit enhanced catalytic activity, whereas the hollowing by Na2S is a serious detriment to the catalytic activity of the resulting carbon-supported hollow nanoparticles for methanol oxidation.
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