کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
610472 | 880649 | 2009 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Preparation of raspberry-like polypyrrole composites with applications in catalysis Preparation of raspberry-like polypyrrole composites with applications in catalysis](/preview/png/610472.png)
Raspberry-like composites were prepared by coating the silver/polypyrrole core/shell composites onto the surface of silica spheres via oxidation polymerization of pyrrole monomer with [Ag(NH3)2]+ ions as oxidants. The whole process allowed the absence of stabilizers, which greatly improved the quality of the conducting polymer composites. The morphology of the resulting composites was investigated, which can be described as raspberry-like; also, the structure and composition of the composites were characterized in detail. A possible formation mechanism was proposed. The present synthetic strategy substantially extended the scope of metal/conducting polymer composite synthesis. The raspberry-like composites exhibited excellent catalytic properties in the reduction of methylene blue dye with the reducing agent of sodium borohydride.
Silver/polypyrrole composites were coated on the surface of silica spheres to form raspberry-like composites. They displayed excellent catalytic properties in the reduction of methylene blue dye.Figure optionsDownload as PowerPoint slide
Journal: Journal of Colloid and Interface Science - Volume 338, Issue 2, 15 October 2009, Pages 573–577