The production of a high loading of almost monodispersed Pt nanoparticles on single-walled carbon nanotubes for methanol oxidation
The production of a high loading of almost monodispersed Pt nanoparticles on single-walled carbon nanotubes for methanol oxidation
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在单壁碳纳米管上制备高负载量的几乎单分散的 Pt 纳米颗粒用于甲醇氧化
DOI:
10.1016/j.elecom.2006.11.003
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发表时间:
2007-04
期刊:
影响因子:
--
通讯作者:
Philippe Mercier
中科院分区:
文献类型:
--
作者:
曹剑瑜;张熙贵;Shiunchin C. Wang;杨辉;Daniel L. Akins;杜冲;Philippe Mercier
Pt/single-walled carbon nanotube (SWCNT) composites have been prepared by mixing surfactant-assisted solubilized SWCNTs and Pt carbonyl complexes. Pt nanoparticles that are nearly monodispersed with a diameter of ca. 2.2nm are formed on the surface of the SWCNTs and broadly dispersed (even at 60wt.% loading) on individual and/or small bundles. Formation of the composite does not lead to a change in the structure of SWCNTs, and the composite exhibits significantly enhanced electrocatalytic activity for methanol oxidation. The enhancement in catalytic activity may result from the unique 1-D structures of SWCNTs, the uniform dispersion of Pt nanoparticles, and the interactions between the Pt nanoparticles and the SWCNTs. The SWCNT-supported Pt can serve as a high surface area support for fuel cell applications and a co-catalyst for methanol oxidation.
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影响因子:
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