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    Author(s): Yicheng Du; Chuji Wang; Hossein Toghiani; Zhiyong Cai; Xiaojian Liu; Jilei Zhang; Qiangu Yan
    Date: 2010
    Source: Forest products journal. Vol. 60, no. 6 (Sept. 2010): p. 527-533.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (448.53 KB)

    Description

    Carbon-encapsulated metal nanoparticles were synthesized by thermal treatment of wood char, with or without transition metal ions pre-impregnated, at 900ºC to 1,100ºC. Nanoparticles with concentric multilayer shells were observed. The nanoparticles were analyzed by scanning electron microscopy, transmission electron microscopy (TEM), X-ray diffraction (XRD), and energy dispersive X-ray (EDX) spectroscopy. The EDX spectrum showed that carbon was the dominant element in the shells. TEM and XRD analysis indicated that the generated carbon shells had structures similar to that of graphite with an average interplanar distance of 0.34 nm. The effects of temperature and pre-impregnation of metal ions on the yield of carbon-encapsulated metal nanoparticles were studied.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Du, Yicheng; Wang, Chuji; Toghiani, Hossein; Cai, Zhiyong; Liu, Xiaojian; Zhang, Jilei; Yan, Qiangu. 2010. Synthesis of carbon-encapsulated metal nanoparticles from wood char. Forest Products Journal. 60(6): 527-533.

    Keywords

    Char, nanotechnology, nanostructured materials, biotechnology, nanoparticles, carbon, biosynthesis, metal ions, X-ray spectroscopy, scanning electron microscopy, transmission electron microscopy, temperature, microencapsulation, nickel nitrate, nanometals, impregnation, heat treatment, x-ray diffraction, iron ntirate

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