Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 112, Issue 7, Pages 2337-2342Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp0755342
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Fe3O4/a-C branched and multibranched coaxial nanowires with a diameter around 40 nm were synthesized by pyrolysis of ferrocene in supercritical CO2 at 450 degrees C. The single-crystal Fe3O4 cores of the coaxial nanowires are continuous. Every trunk, branch, and subbranch has a similar diameter, different from fractals, dendritics, or other hierarchical structures. The branches of the coaxial nanowires are vertical to the trunks, connected together with double-wedge junctions. The branched Fe3O4 core is a single crystal, with each branch having a growth orientation of < 100 >, forming a three-dimensional framework-like three-divisional branched nanorod structure. A possible growth rnechanism was proposed.
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