Synthesis of Beaded and Entwined Carbon Nanofibers in Ni : Al Alloy Catalyst | Zendy

Debabrata Pradhan | Zendy; Maheshwar Sharon | Zendy; Mukul Kumar | Zendy; Yukio Ando | Zendy

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Synthesis of Beaded and Entwined Carbon Nanofibers in Ni : Al Alloy Catalyst

Author(s) -

Debabrata Pradhan,

Maheshwar Sharon,

Mukul Kumar,

Yukio Ando

Publication year - 2007

Publication title -

journal of nanoscience and nanotechnology

Language(s) - English

Resource type - Journals

eISSN - 1533-4899

pISSN - 1533-4880

DOI - 10.1166/jnn.2007.221

Subject(s) - materials science , nanofiber , fiber , composite material , alloy , microstructure , thermal decomposition , carbon nanofiber , braid , sonication , chemical engineering , carbon nanotube , organic chemistry , chemistry , engineering

This paper reports two new types of carbon nanofibers synthesis by thermal decomposition of n-hexane in presence of Ni-Al alloy in hydrogen atmosphere at 1100 degrees C. One type is "beaded fibers" in which spherical carbon beads (approximately 1 microm) are regularly grown from outer surface of fibers (approximately 0.3 microm). The other new microstructure is "entwined fibers" in which multiple nanofibers of diameter approximately 100 nm grow self-entwined like a braid of hair. Both bead-fiber bonding (in beaded fibers) and fiber-fiber interaction (in entwined fibers) are strong to be detached/unfolded by 30-min ultrasonication.

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