Cobalt Phthalocyanine/Iron (CoPc/Fe) nanocomposite particles were prepared using mehods of organic inorganic composite in situ with cobalt phthalocyanine(CoPc) and carbonyl iron. The structure of composite particles w...Cobalt Phthalocyanine/Iron (CoPc/Fe) nanocomposite particles were prepared using mehods of organic inorganic composite in situ with cobalt phthalocyanine(CoPc) and carbonyl iron. The structure of composite particles was characterized by density measurement, XRD, SEM and TEM. The results show that CoPc/Fe nanocomposites with density of 3.99 g· cm－ 3 were almost micro sized regular spheroids consisting ofα Fe nanoparticles with average diameter 20 nm in inner and CoPc layer on the surface of spheroids. Further, microwave electromagnetic parameters of CoPc/Fe nanocomposite particles was measured, and the dependences ofε r andμ r on frequency were investigated. Compared with carbonyl iron powders, the composite permittivityε r significantly decreases while composite permabilityμ r changes slightly, which may increases the width of microwave absorbing frequency.展开更多
文摘Cobalt Phthalocyanine/Iron (CoPc/Fe) nanocomposite particles were prepared using mehods of organic inorganic composite in situ with cobalt phthalocyanine(CoPc) and carbonyl iron. The structure of composite particles was characterized by density measurement, XRD, SEM and TEM. The results show that CoPc/Fe nanocomposites with density of 3.99 g· cm－ 3 were almost micro sized regular spheroids consisting ofα Fe nanoparticles with average diameter 20 nm in inner and CoPc layer on the surface of spheroids. Further, microwave electromagnetic parameters of CoPc/Fe nanocomposite particles was measured, and the dependences ofε r andμ r on frequency were investigated. Compared with carbonyl iron powders, the composite permittivityε r significantly decreases while composite permabilityμ r changes slightly, which may increases the width of microwave absorbing frequency.
