| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9594564 | Surface Science | 2005 | 8 Pages |
Abstract
In this study we describe details of a new technique that allows to deposit metal on top of a self-assembled monolayer (SAM). Monoatomic high platinum islands were formed on a 4-mercaptopyridine SAM on Au(1Â 1Â 1) by first immersing the SAM-covered gold electrode in an aqueous solution of K2PtCl4 without potential control to allow Pt(II) ions to form a complex with the pyridine nitrogen. The complexed Pt(II) ions were then reduced electrochemically to Pt(0) after transferring the electrode to a Pt(II) ion-free solution. Upon reduction, monoatomic high Pt islands were observed in STM, the total coverage depending on the time for complexation. Ex situ angle-resolved XPS studies reveal that the Pt islands indeed reside on top of the SAM.
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Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
M. Manolova, V. Ivanova, D.M. Kolb, H.-G. Boyen, P. Ziemann, M. Büttner, A. Romanyuk, P. Oelhafen,