Issue 14, 2012
From the journal:

Physical Chemistry Chemical Physics

On the complexation kinetics for metallization of organic layers: palladium onto a pyridine-terminated araliphatic thiol film†

Mutlu Iskender Muglali,*a   Jinxuan Liu,b   Asif Bashir,a   Dimitar Borissov,a   Mingchun Xu,c   Yuemin Wang,c   Christof Wöllb  and  Michael Rohwerdera  

* Corresponding authors

a Max-Planck-Institut für Eisenforschung GmbH, D-40237 Düsseldorf, Germany
E-mail: m.muglali@mpie.de

b Karlsruhe Institute of Technology, Institute of Functional Interfaces (IFG), D-76344 Eggenstein-Leopoldshafen, Germany

c Physical Chemistry I, Ruhr-University Bochum, D-44780 Bochum, Germany

Abstract

Palladium nanoparticles have been deposited electrochemically onto self-assembled monolayers (SAMs) of 4-(4-(4-pyridyl)phenyl)phenylmethanethiol. A pronounced correlation between the kinetics of the complexation between pyridine nitrogens and Pd cations and the sample potential has been observed. The amount of the Pd deposit significantly increases by adjusting the sample potential during the complexation step to values below the point of zero charge. The size of the spherical shaped Pd nanoparticles varies within a certain limit according to the amount of Pd2+ ions initially coordinated on top of the SAM. The metallic state of these particles was confirmed by X-ray photoelectron spectroscopy and infrared reflection-absorption spectroscopy. Moreover, CO adsorption on the clean Pd deposit revealed further information about the crystallographic orientation of the nanoparticles.

Graphical abstract: On the complexation kinetics for metallization of organic layers: palladium onto a pyridine-terminated araliphatic thiol film

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Article information

DOI
https://doi.org/10.1039/C2CP40072C
Article type
Paper
Submitted
09 Jan 2012
Accepted
10 Feb 2012
First published
13 Feb 2012

Phys. Chem. Chem. Phys., 2012,14, 4703-4712

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On the complexation kinetics for metallization of organic layers: palladium onto a pyridine-terminated araliphatic thiol film

M. I. Muglali, J. Liu, A. Bashir, D. Borissov, M. Xu, Y. Wang, C. Wöll and M. Rohwerder, Phys. Chem. Chem. Phys., 2012, 14, 4703 DOI: 10.1039/C2CP40072C

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