FePt3 nanosuspension synthesized from different precursors – a morphological comparison by SAXS, DLS and TEM

Bulletin of the Polish Academy of Sciences. Technical Sciences

S. PinitsoontornIntegrated Nanotechnology Research Center, Khon Kaen University, Khon Kaen, ThailandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  C. SirisathitkulCorresponding authorMolecular Technology Research Unit, Walailak University, Nakhon Si Thammarat, ThailandEmailOther articles by this author:De Gruyter OnlineGoogle Scholar²  P. HardingMolecular Technology Research Unit, Walailak University, Nakhon Si Thammarat, ThailandOther articles by this author:De Gruyter OnlineGoogle Scholar²  P. SarmphimMolecular Technology Research Unit, Walailak University, Nakhon Si Thammarat, ThailandOther articles by this author:De Gruyter OnlineGoogle Scholar²  B. ChayasombatNational Metal and Materials Technology Center, Pathumthani, ThailandOther articles by this author:De Gruyter OnlineGoogle Scholar³  S. KijamnajsukNational Metal and Materials Technology Center, Pathumthani, ThailandOther articles by this author:De Gruyter OnlineGoogle Scholar³  J. ChingunpitakSchool of Pharmacy, Walailak University, Nakhon Si Thammarat, ThailandOther articles by this author:De Gruyter OnlineGoogle Scholar⁴  S. SoontaranonSynchrotron Light Research Institute, Nakhon Ratchasima, ThailandOther articles by this author:De Gruyter OnlineGoogle Scholar⁵ 

[1] Integrated Nanotechnology Research Center, Khon Kaen University, Khon Kaen, Thailand;Molecular Technology Research Unit, Walailak University, Nakhon Si Thammarat, Thailand;National Metal and Materials Technology Center, Pathumthani, Thailand;School of Pharmacy, Walailak University, Nakhon Si Thammarat, Thailand;Synchrotron Light Research Institute, Nakhon Ratchasima, Thailand

关键词: Keywords: magnetic nanosuspension;    Fe(acac)3;    Fe(hfac)3;    DLS;    TEM;    SAXS;   

DOI  :  10.1515/bpasts-2017-0010

学科分类：工程和技术（综合）

来源: Polska Akademia Nauk * Centrum Upowszechniania Nauki / Polish Academy of Sciences, Center for the Advancement of Science

【 摘 要 】

Annealed iron-platinum (FePt) is ferromagnetic in a nanoscale regime which is necessary for energy and data storage, whereas the as-synthesized form of FePt-based nanoparticles exhibits superparamagnetism useful for biomedical applications. In this study, as-synthesized nanosuspensions from the reaction of Pt(acac)2 with Fe(acac)3 and Fe(hfac)3 are compared. X-ray diffraction (XRD) peaks for both samples are assigned to the FePt3 phase. As shown by transmission electron microscopy (TEM) and small angle X-ray scattering (SAXS), nanoparticles synthesized by using Fe(acac)3 have a smaller average diameter, but larger polydispersity index and particle agglomerations. On the other hand, the nanoparticles synthesized by using Fe(hfac)3 can self-assemble into a longer range of patterned monolayer. Dynamic light scattering (DLS), measuring the size of cluster of nanoparticles as well as oleic acid and oleylamine at their surface, confirms that larger agglomerations in the sample were synthesized by using Fe(acac)3. In addition to the size distribution, magnetic properties were influenced by the composition of these nanoparticles.

【 授权许可】

Unknown