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The consequences of treatment of gold nanocrystals present in polypyrrole–gold composites and electrodeposited gold nanocrystals (PPY–Au and Au NPs) with OH radicals generated in Fenton’s reaction were investigated. Particularly, the changes in the morphology and the electrochemical properties of those materials are shown. For both materials, the etching effect was noticed. Contrary to significantly...
Micrometer sized polypyrrole capsules were prepared through the photochemical deposition of polymer onto the surface of aqueous droplets dispersed in bromoform. Scanning electron microscopy and transmission electron microscopy analyses demonstrate that the microcapsules are ca. 550 nm in diameter and contain an empty hollow region surrounded by a ca. 40 nm thick polymer shell. The XPS data reveal...
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