Date Published:

2010///

Abstract:

The Langmuir-Blodgett (LB) method was used to deposit multilayers of polyaniline (PANI)- and mercaptoethanesulfonate (MES)-stabilized Au nanoparticles. The electrostatic interaction between the neg. charged nanoparticles in the subphase and the pos. charged PANI at the air-H2O interface assisted the deposition of the nanocomposite film onto a solid support. These PANI/Au-NPs films were characterized using cyclic voltammetry, Cu underpotential deposition, SEM, at. force microscopy, and XPS. The nanocomposite layers were uniform and reproducible. The d. of Au-NPs in the monolayer depended on the acidity of the subphase as well as on the nanoparticles concn. Also, the Au-NPs extrude above the PANI and therefore could be used as nanoelectrodes for the underpotential deposition (UPD) of Cu. [on SciFinder(R)]

Notes:

CAPLUS AN 2009:1616524(Journal)