Formation of cobalt-Prussian Blue nanoparticles in a biopolymer matrix.
The molecular magnet material, cobalt-Prussian Blue, has been synthesized using chitosan as a morphological structure-directing agent. The strong chelating ability of the biopolymer ensures that the inorganic phase remains nanoparticulate. SQUID magnetometry reveals that the nanoparticles exhibit a sharp ferrimagnetic to paramagnetic transition at 16 K.
Collins
Andrew M
AM
Centre for Organized Matter Chemistry, School of Chemistry, University of Bristol, Cantock's Close, Bristol, UK.
Mann
Stephen
S
Hall
Simon R
SR
D048271:Chitosan / Q000737:chemistry*; D003035:Cobalt / Q000737:chemistry*; D004574:Electromagnetic Fields; D005295:Ferrocyanides / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D053758:Nanoparticles / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared
D005295:Ferrocyanides; C116383:ferrocyn; D003035:Cobalt; D048271:Chitosan; C000170:ferric ferrocyanide