Synthesis, characterization, and magnetic properties of uniform-sized MnO nanospheres and nanorods
SCIE
SCOPUS
- Title
- Synthesis, characterization, and magnetic properties of uniform-sized MnO nanospheres and nanorods
- Authors
- Park, J; Kang, EA; Bae, CJ; Park, JG; Noh, HJ; Kim, JY; Park, JH; Park, JH; Hyeon, T
- Date Issued
- 2004-09-09
- Publisher
- AMER CHEMICAL SOC
- Abstract
- Uniform-sized MnO nanospheres and nanorods were fabricated by the thermal decomposition of Mn-surfactant complexes. The particle sizes of the nanospheres were varied. from 5 to 40 nm by changing the surfactant. The shape of the particles could be controlled by varying the experimental conditions. The synthesized MnO nanorods have diameters ranging from 7 to 10 nm, and lengths ranging from 30 to 140 nm. Structural characterization using X-ray powder diffraction, X-ray absorption spectroscopy, and high-resolution transmission electron microscopy revealed that the nanoparticles are core/shell structures with a MnO core and a thin Mn3O4 shell. The MnO nanoparticles exhibited very interesting magnetic properties. For example, the MnO nanorods with dimensions of 7 nm x 33 nm showed two blocking temperatures at 35 and 280 K, respectively.
- Keywords
- THERMAL-DECOMPOSITION; HIGHLY CRYSTALLINE; COBALT NANORODS; QUANTUM DOTS; NANOCRYSTALS; NANOPARTICLES; SUPERLATTICES; CHEMISTRY; TEMPERATURE; NANOWIRES
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/17732
- DOI
- 10.1021/JP048229E
- ISSN
- 1520-6106
- Article Type
- Article
- Citation
- JOURNAL OF PHYSICAL CHEMISTRY B, vol. 108, no. 36, page. 13594 - 13598, 2004-09-09
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- There are no files associated with this item.
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