Phase change induced by polypyrrole in iron-oxide polypyrrole nanocomposite
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چکیده
منابع مشابه
Magnetic properties of polypyrrole - coated iron oxide nanoparticles
Iron oxide nanoparticles were prepared by sol gel process. In-situ polymerization of pyrrole monomer in the presence of oxygen in iron oxide ethanol suspension resulted in a iron-oxide polypyrrole nanocomposite. The structure and magnetic properties of the nanocomposites with varying pyrrole concentrations are investigated. The X-Ray diffraction studies indicate the presence of γ − Fe2O3 phase ...
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Polypyrrole (PPy) was chemically synthesised at two pH levels (pH = 2 and unadjusted pH, i.e. 6.6) using pre-formed carboxymethylcelluloseiron (CMC-Fe) complexes. The CMC-Fe complexes were prepared at a fixed CMC concentration, i.e. 5.5x10 mol/L, and with an increasing FeCl3 amount (from 4x10 to 5x10 mol/L). The quantity of iron bound to CMC was determined by the inductively coupled plasma (ICP...
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The present work describes the preparation of nanocomposites in which the multiwall carbon nanotubes (MWCNT) have been mixed with conducting polypyrrole (PPy) via an in situ chemical oxidative preparation method. To reveal their structural, morphological and thermal properties, the composites have been characterized by x-ray diffraction, field emission scanning electron microscope, Fourier tran...
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ژورنال
عنوان ژورنال: Bulletin of Materials Science
سال: 2001
ISSN: 0250-4707,0973-7669
DOI: 10.1007/bf02704002