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Voltammetric and conductometric behaviour of self assembled multilayer nanocomposites of polyaniline and gold nanoparticles

  • Multilayer nanocomposites from polyaniline (PANI) and gold nanoparticles (AuNPs) were formed by layer-by-layer deposition. The formation of PANI–AuNPs multilayer structures was monitored by UV-vis absorption spectroscopy and cyclic voltammetry. Each deposited bilayer of PANI–AuNPs led to a monotonous and almost linear increase in both optical absorbance and the first current peak of PANI oxidation. The prepared multilayer nanocomposites were characterized by in situ conductivity measurements at different pH and potential and by transmission electron microscopy. Finally, chemosensitive properties of the new material based on the intrinsic affinity of gold nanoparticles were studied. Changes in the film resistance on exposure to vapors of mercury and sulfur-containing compounds were observed.

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Author: Ulrich Lange, Svetlozar D. Ivanov, Vladimir V. Lyutov, Vessela T. Tsakova, Vladimir M. MirskyORCiDGND
DOI:https://doi.org/10.1007/s10008-009-0922-2
ISSN:1432-8488
ISSN:1433-0768
Title of the source (English):Journal of Solid State Electrochemistry
Document Type:Scientific journal article peer-reviewed
Language:English
Year of publication:2010
Tag:Chemoresistor; Gold nanoparticles; In situ conductivity measurements; Layer-by-layer deposition; Nanocomposite; Polyaniline
Volume/Year:14
Issue number:7
First Page:1261
Last Page:1268
Faculty/Chair:Fakultät 2 Umwelt und Naturwissenschaften / FG Nanobiotechnologie
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