Citation: Cheng-Wei Zhang, Lian-Bin Xu, Jian-Feng Chen. High loading Pt nanoparticles on ordered mesoporous carbon sphere arrays for highly active methanol electro-oxidation[J]. Chinese Chemical Letters, ;2016, 27(6): 832-836. doi: 10.1016/j.cclet.2016.02.025 shu

High loading Pt nanoparticles on ordered mesoporous carbon sphere arrays for highly active methanol electro-oxidation

a State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China;
b Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Hebei University of Technology, Tianjin 300130, China

Received Date: 12 October 2015
Revised Date: 12 January 2016

Fund Project: The authors gratefully acknowledge financial support from the National Natural Science Foundation of China (No. 51172014), the National 973 Program of China (No. 2009CB219903), and the Scientific Innovation Grant for Excellent Young Scientists of Hebei University of Technology (No. 2015001).

Three-dimensionally (3D) ordered mesoporous carbon sphere arrays (OMCS) are explored to support high loading (60 wt%) Pt nanoparticles as electrocatalysts for the methanol oxidation reaction (MOR). The OMCS has a unique hierarchical nanostructure with ordered large mesopores and macropores that can facilitate high dispersion of the Pt nanoparticles and fast mass transport during the reactions. The prepared Pt/OMCS exhibits uniformly dispersed Pt nanoparticles with an average size of 2.0 nm on the mesoporous walls of the carbon spheres. The Pt/OMCS catalyst shows significantly enhanced specific electrochemically active surface area (ECSA) (73.5 m² g^-1) and electrocatalytic activity (0.69 mA cm^-2) for the MOR compared with the commercial 60 wt% Pt/C catalyst.
- Carbon,
- Pt nanoparticles,
- High loading,
- Electrocatalyst,
- Methanol oxidation reaction,
- Fuel cell
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