A Selective Blocking Method To Control the Overgrowth of Pt on Au Nanorods | Zendy

John F. Fennell | Zendy; Dongsheng He | Zendy; Anicetus Muche Tanyi | Zendy; Andrew J. Logsdail | Zendy; Roy L. Johnston | Zendy; Z. Y. Li | Zendy; Sarah L. Horswell | Zendy

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A Selective Blocking Method To Control the Overgrowth of Pt on Au Nanorods

Author(s) -

John F. Fennell,

Dongsheng He,

Anicetus Muche Tanyi,

Andrew J. Logsdail,

Roy L. Johnston,

Z. Y. Li,

Sarah L. Horswell

Publication year - 2013

Publication title -

journal of the american chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 7.115

H-Index - 612

eISSN - 1520-5126

pISSN - 0002-7863

DOI - 10.1021/ja4003475

Subject(s) - nanorod , chemistry , deposition (geology) , electrochemistry , blocking (statistics) , platinum , carbon monoxide , chemical engineering , oxygen , inorganic chemistry , nanotechnology , electrode , catalysis , organic chemistry , paleontology , statistics , materials science , mathematics , sediment , engineering , biology

A method for the preparation of smooth deposits of Pt on Au nanorods is described, involving sequential deposition steps with selective blocking of surface sites that reduces Pt-on-Pt deposition. The Au-Pt nanorods prepared by this method have higher long-term stability than those prepared by standard Pt deposition. Electrochemical data show that the resulting structure has more extended regions of Pt surface and enhanced activity toward the carbon monoxide oxidation and oxygen reduction reactions.

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