TY - GEN
T1 - The role of Pt complex on the synthesis of FePt by polyol process
AU - Aizawa, S.
AU - Tohji, K.
AU - Jeyadevan, B.
PY - 2008/3/17
Y1 - 2008/3/17
N2 - Target materials in this experiment were FePt alloy nanoparticles with face-centered tetragonal structure, narrow size distribution, and the size of 6-8 nm. This type of materials was expected to have high recording-density of 1Tbit/inch2 with high magnetic anisotropy. In this study, a detailed investigation was carried out to understand the reduction characteristics of Pt complexes, and FePt alloy nanoparticles with diameters larger than 6 nm was try to synthesize. For the synthesis of Pt nanoparticles by using polyol process, three kinds of Pt complexes, namely, H2PtCl6, Pt(EDTA), and Pt(acac)2 was used. The size of Pt metal nanoparticles was only few nm in the case of single Pt complex, while it was increased to 7-10 nm in the case of mixed Pt complex and adjusting the reaction temperature increasing ratio. FePt alloy nanoparticles with the diameter of 7-8 nm, distorted shape, and narrow size distribution were successfully synthesized. However, composition ratio of the particle was Fe12-21Pt79-88, nevertheless the ratio of a Fe:Pt in the original solution was 2:1.
AB - Target materials in this experiment were FePt alloy nanoparticles with face-centered tetragonal structure, narrow size distribution, and the size of 6-8 nm. This type of materials was expected to have high recording-density of 1Tbit/inch2 with high magnetic anisotropy. In this study, a detailed investigation was carried out to understand the reduction characteristics of Pt complexes, and FePt alloy nanoparticles with diameters larger than 6 nm was try to synthesize. For the synthesis of Pt nanoparticles by using polyol process, three kinds of Pt complexes, namely, H2PtCl6, Pt(EDTA), and Pt(acac)2 was used. The size of Pt metal nanoparticles was only few nm in the case of single Pt complex, while it was increased to 7-10 nm in the case of mixed Pt complex and adjusting the reaction temperature increasing ratio. FePt alloy nanoparticles with the diameter of 7-8 nm, distorted shape, and narrow size distribution were successfully synthesized. However, composition ratio of the particle was Fe12-21Pt79-88, nevertheless the ratio of a Fe:Pt in the original solution was 2:1.
KW - Nanoparticle
KW - Polyol process
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U2 - 10.1063/1.2896970
DO - 10.1063/1.2896970
M3 - Conference contribution
AN - SCOPUS:40549102778
SN - 9780735405066
T3 - AIP Conference Proceedings
SP - 22
EP - 25
BT - Water Dynamics - 5th International Workshop on Water Dynamics
T2 - 5th International Workshop on Water Dynamics
Y2 - 25 September 2007 through 27 September 2007
ER -