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

作者:Fennell John; He Dongsheng; Tanyi Anicetus Muche; Logsdail Andrew J; Johnston Roy L; Li Z Y*; Horswell Sarah L
来源:Journal of the American Chemical Society, 2013, 135(17): 6554-6561.
DOI:10.1021/ja4003475

摘要

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.

  • 出版日期2013-5-1