One-pot synthesis of large FePt nanoparticles from metal salts and their thermal stability

Masafumi Nakaya; Masayuki Kanehara; Toshiharu Teranishi

doi:10.1021/la053504p

One-pot synthesis of large FePt nanoparticles from metal salts and their thermal stability

Langmuir. 2006 Apr 11;22(8):3485-7. doi: 10.1021/la053504p.

Authors

Masafumi Nakaya¹, Masayuki Kanehara, Toshiharu Teranishi

Affiliation

¹ Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan.

PMID: 16584216
DOI: 10.1021/la053504p

Abstract

One-pot synthesis of FePt nanoparticles larger than 5 nm with controlled composition has been developed by the polyol reduction of platinum acetylacetonate and iron acetylacetonate in excess ligands. The obtained large FePt nanoparticles (6.1 +/- 0.6 nm Fe36Pt64, 5.8 +/- 0.7 nm Fe44Pt56, and 5.1 +/- 0.7 nm Fe49Pt51 nanoparticles) were thermally more stable than the small ones and were hard to coalesce in the in-plane direction for their 2D superlattice.