Adsorption of dicarboxylic acids onto nano-structured silver surfaces – surface-enhanced Raman scattering studies of pH-dependent adsorption geometries
Article first published online: 27 OCT 2012
Copyright © 2012 John Wiley & Sons, Ltd.
Journal of Raman Spectroscopy
Volume 44, Issue 2, pages 247–254, February 2013
How to Cite
Schulte, J. P., Grass, S. and Treuel, L. (2013), Adsorption of dicarboxylic acids onto nano-structured silver surfaces – surface-enhanced Raman scattering studies of pH-dependent adsorption geometries. J. Raman Spectrosc., 44: 247–254. doi: 10.1002/jrs.4190
- Issue published online: 24 JAN 2013
- Article first published online: 27 OCT 2012
- Manuscript Accepted: 2 SEP 2012
- Manuscript Revised: 14 AUG 2012
- Manuscript Received: 30 MAR 2012
- Deutsche Forschungsgemeinschaft within the priority program. Grant Number: SPP1313
- dicarboxylic acids;
- pH dependence;
- adsorption orientation;
Understanding and shaping adsorption orientations of molecular compounds on nano-structured metallic surfaces is an important issue across many areas of contemporary research including the design of nano-structured surfaces and catalytic processes. Here, we used surface-enhanced Raman spectroscopy to study these orientations on nano-structured silver surfaces using dicarboxylic acids (maleic acid and fumaric acid) as model substances.
Results revealed a clear pH dependence of the observed adsorption geometries of dicarboxylic acids correlating well with the dissociation states of the two acidic groups. Our data demonstrate the potential of the technique and contribute to an improved understanding of adsorption orientations of molecules at the interface between nano-structured metal surfaces and a liquid phase. Copyright © 2012 John Wiley & Sons, Ltd.