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论文类型：期刊论文

发表时间：2008-01-31

发表刊物：MATERIALS LETTERS

收录刊物：SCIE、EI

卷号：62

期号：2

页面范围：219-221

ISSN号：0167-577X

关键字：crystal growth; nanomaterials; decarboxylation; carboxymethylsulfonyl

摘要：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.