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- Title
Post-treatment Method for the Synthesis of Monodisperse Binary FePt-FeO Nanoparticles.
- Authors
Liu, Zhilu; Wu, Chun; Niu, Liang; Yang, Ganting; Wang, Kai; Pei, Wenli; Wang, Qiang
- Abstract
To obtain the optimal 1:1 composition of FePt alloy nanomaterials by polyol synthesis, the iron precursor (iron pentacarbonyl, Fe(CO)) must be used in excess, because the Fe(CO) exists in the vapor phase at the typical temperatures used for FePt synthesis and cannot be consumed completely. Fabrication of FeO nanoparticles by consuming the excess iron precursor was an effective strategy to make full use of the iron precursor. In this paper, a facile post-treatment method was applied to consume the excess iron, which was oxidized to FeO after post-treatment at 150 and 200 °C, and a monodisperse binary FePt-FeO nanoparticle system was generated. The post-treatment method did not affect the crystal structure, grain size, or composition of the FePt nanoparticles. However, the content and grain size of the fcc-FeO nanoparticles can be increased simply by increasing the post-treatment temperature from 150 to 200 °C.
- Subjects
NANOPARTICLE synthesis; IRON compound synthesis; IRON alloys; CHEMICAL precursors; CRYSTAL structure
- Publication
Nanoscale Research Letters, 2017, Vol 12, Issue 1, p1
- ISSN
1931-7573
- Publication type
Article
- DOI
10.1186/s11671-017-2312-5