| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 188960 | Electrochimica Acta | 2012 | 7 Pages |
Novel spherical three-dimensional (3D) dendritic gold@polypyrrole (PPy) nanocomposites were successfully synthesized by reacting pyrrole monomer with chloroauric acid (HAuCl4) through a self-assembly process in the presence of poly(sodium 4-styrenesulfonate) (PSS), which acts as both dopant and surfactant. The formation probability and the size of the dendritic gold@PPy nanocomposites depended on the concentrations of PSS, pyrrole and HAuCl4, and reaction temperature. The dendritic AuNPs@PPy nanocomposites were confirmed by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. In addition, the AuNPs@PPy nanocomposites had high electrocatalytic activity toward H2O2, which showed excellent potential application in sensing.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► 3D dendritic Au@polypyrrole nanocomposites were synthesized by a self-assembly process. ► Morphology of composite was controlled by concentration of reactant and temperature. ► The nanocomposites showed high electrocatalytic activity toward H2O2.
