A novel method for the preparation of magnetic nanoparticles in a polypyrrole powder

Abstract

Communications larger and farther apart, then constant. This easily explains the effect of the tartaric acid content on the platinum particle size in the impreg--impreg Pt-SiO, series. Moreover, the ap-Recently, polypyrrole composites containing nano-size particles of metal oxides (y-Fe,O,, a-Fe,O,, SnO,, WO,, and TiO,) have been prepared and considered for electromagnetic interference shielding['] and microwave absorbing applications. These composites were prepared by polymerizing pyrrole (chemically or electrochemically) in an aqueous

La funcionalidad de los óxidos de hierro

“…También se elaboran vidrios semiconductores al mezclarla con MnO y P 2 0 5 , o con Nb 2 0 5 , P 2 0 5 y Li0 2 (35 y 36). Además, se han desarrollado méto-dos para obtener compuestos poliméricos magnéti-cos con nanopartículas de hematita y maghemita, que se pueden utilizar en dispositivos para interferencia electromagnética y absorción de microondas (37).…”

Defence Applications of Polymer Nanocomposites

“…Nguyen and Diaz 78 have reported a method to synthesize polypyrrole nanocomposites containing iron oxides (g and a), tin oxide, tungsten oxide and titanium dioxide. Pyrrole containing a dispersion of nanoparticle metal oxides was polymerised in situ and the magnetic properties reported.…”

Graphene Nanocomposites for Electromagnetic Induction Shielding

“…In order to solve these problems, polymer-based composites with effective EMI Shielding effectiveness (SE) have developed and gradually come into fashion. There are various range of composite filler, including metallic and magnetic nanoparticles [5][6][7], intrinsically conductive polymers like polyaniline (PANI) [8][9][10], and carbon particles (carbon black, carbon fibers, carbon nanotubes, etc.) [11][12][13][14][15][16][17][18][19][20][21][22][23].…”