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Regensburg 2013 – scientific programme

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O: Fachverband Oberflächenphysik

O 36: Poster Session II (Organic films and electronics, photoorganics; Nanostructures; Plasmonics and nanooptics, Surface chemical reactions and heterogeneous catalysis, Surface dynamics )

O 36.4: Poster

Tuesday, March 12, 2013, 18:15–21:45, Poster B2

The adsorption of silver on lignin and its precursors — •Sebastian Dahle1,2, John Meuthen1, Lienhard Wegewitz1,3, Wolfgang Viöl2, and Wolfgang Maus-Friedrichs1,31Institut für Energieforschung und physikalische Technologien, TU Clausthal — 2Hochschule für angewandte Wissenschaft und Kunst — 3Clausthaler Zentrum für Materialtechnik, TU Clausthal

The adsorption of silver on lignin is of great interest for the modification of wood surfaces with antibacterial coatings. The natural precursors during the biosynthesis of lignin are mainly the monolignols sinapyl alcohol and coniferyl alcohol. These have been used as model systems to get a better understanding of the interaction of silver with lignin. X-ray Photoelectron Spectroscopy, Ultraviolet Photoelectron Spectroscopy, Metastable Induced Electron Spectroscopy and Atomic Force Microscopy have been employed during the investigations, we observed a formation of silver nanoparticles upon the catalytic decomposition of the lignin as well as its precursors.

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