Controlled synthesis and magnetic properties of iron oxide nanostructures using biogenic polyamines

Sangaraju Shanmugam, Takuya Nakanishi, Tetsuya Osaka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

A facile and simple approach has been described for the synthesis of magnetite nanoparticles and iron oxyhydroxide nanorods using biogenic polyamines. At room temperature, highly crystalline magnetite particles with average size of 44 ± 2 and 37 ± 1 nm were synthesized with spermine and spermidine, respectively. The formation of nanoparticles was characterized with TEM, HRTEM, XPS and SQUID. The magnetite nanoparticles formed by the biogenic polyamines exhibits ferrimagnetic behavior at 300 K. When the reaction was carried out at low temperature, high aspect ratio, well crystalline nanorods were observed. X-ray diffraction and Infrared spectroscopy suggests that the nanorods correspond to lepidocrocite (γ-FeOOH). TEM analysis shows each bundle consisting of several nanorods stacked together by side on fashion. γ-FeOOH nanorods with high aspect ratio of 70 were observed. The SQUID analysis reveals that the lepidocrocite nanorods exhibit superparamagnetic behavior at room temperature.

Original languageEnglish
Title of host publicationECS Transactions - Magnetic Materials, Processes and Devices 10 - 214th ECS Meeting
Pages189-197
Number of pages9
Edition45
DOIs
Publication statusPublished - 2009 Nov 23
EventMagnetic Materials, Processes and Devices 10 - 214th ECS Meeting - Honolulu, HI, United States
Duration: 2008 Oct 122008 Oct 17

Publication series

NameECS Transactions
Number45
Volume16
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

ConferenceMagnetic Materials, Processes and Devices 10 - 214th ECS Meeting
CountryUnited States
CityHonolulu, HI
Period08/10/1208/10/17

ASJC Scopus subject areas

  • Engineering(all)

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    Shanmugam, S., Nakanishi, T., & Osaka, T. (2009). Controlled synthesis and magnetic properties of iron oxide nanostructures using biogenic polyamines. In ECS Transactions - Magnetic Materials, Processes and Devices 10 - 214th ECS Meeting (45 ed., pp. 189-197). (ECS Transactions; Vol. 16, No. 45). https://doi.org/10.1149/1.3140021