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Indexed by:期刊论文

Date of Publication:2008-01-31

Journal:MATERIALS LETTERS

Included Journals:SCIE、EI

Volume:62

Issue:2

Page Number:219-221

ISSN No.:0167-577X

Key Words:crystal growth; nanomaterials; decarboxylation; carboxymethylsulfonyl

Abstract:A novel method for preparing uncoated iron oxide nanoparticles by thermal decarboxylation of iron hydroxide cetylsulfonyl acetate in solution followed by heating under the protection of nitrogen was presented. The thermal decarboxylation of the precursor and the formation of iron oxide were monitored by FTIR and XRD, the vibrations of alkyl and sulfonyl groups vanished after refluxing in tetraline and uncoated maghemite was obtained after heating treatment at 400 degrees C. The sizes and morphologies of the obtained samples were studied by TEM. The particles were about 3 nm after refluxing and 8 nm after calcining at 400 degrees C but agglomerated due to the absence of capping ligands. (c) 2007 Elsevier B.V. All rights reserved.