Analysis of biogenic magnetite nanoparticles

Analysis of biogenic magnetite nanoparticles

Cobalt doped magnetite (CoxFe3-xO4) nanoparticles have been produced through the microbial reduction of cobalt-iron oxyhydroxide by the bacterium Geobacter sulfurreducens. The materials produced, as measured by SQUID, x-ray magnetic circular dichroism, Mössbauer spectroscopy, etc., show dramatic inc...

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Hauptverfasser: Byrne, James M, Coker, V S, Moise, S, Wincott, P L, Vaughan, D J, Tuna, F, Arenholz, E, van der Laan, G, Pattrick, R A D P, Lloyd, J R, Telling, N D
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Sprache:eng
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Zusammenfassung:Cobalt doped magnetite (CoxFe3-xO4) nanoparticles have been produced through the microbial reduction of cobalt-iron oxyhydroxide by the bacterium Geobacter sulfurreducens. The materials produced, as measured by SQUID, x-ray magnetic circular dichroism, Mössbauer spectroscopy, etc., show dramatic increases in coercivity with increasing cobalt content without a major decrease in overall saturation magnetization. Structural and magnetization analyses reveal a reduction in particle size to
DOI:10.1594/pangaea.808948