Indexed by:期刊论文

Date of Publication:2010-05-01

Journal:MATERIALS RESEARCH BULLETIN

Included Journals:SCIE、EI

Volume:45

Issue:5

Page Number:519-522

ISSN No.:0025-5408

Key Words:Nanostructures; High pressure; Raman spectroscopy; X-ray diffraction; Magnetic properties

Abstract:Carbon-coated iron nanoparticles were synthesized by detonating a mixture of ferrocene, naphthalene and hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) in an explosion vessel under low vacuum conditions (8.1 kPa). The RDX functioned as an energy source for the decomposition of ferrocene and naphthalene. The carbon-coated iron nanoparticles were formed as soot-like deposits on the inner surface of the reactor, which were characterized by XRD, TEM, HRTEM, Raman spectroscopy and vibrating sample magnetometer. And a portion of the detonation soot was treated with hydrochloric acid. The product was carbon-coated nanoparticles in perfect core-shell structures with graphitic shells and bcc-Fe cores. The detonation technique offers an energy-saving route to the synthesis of carbon-coated nanomaterials. (C) 2010 Elsevier Ltd. All rights reserved.