Amorphous FexCo1–x wire-like nanostructures manufactured through surfactant-free magnetic-field-induced synthesis
Authors:
- Marcin Krajewski,
- Sz-Chian Liou,
- Wen-An Chiou,
- Mateusz Tokarczyk,
- Artur Małolepszy,
- Magdalena Płocińska,
- Agnieszka Witecka,
- Sabina Lewińska,
- Anna Ślawska-Waniewska
Abstract
So far, it has been proven that the magnetic-field-induced (MFI) synthesis is a process which mainly leads to the formation of magnetic metallic one-dimensional nanostructures. Taking advantage of this method, the new procedures which allow manufacture of the magnetic bimetallic iron–cobalt wire-like nanochains with Fe0.75Co0.25, Fe0.50Co0.50, and Fe0.25Co0.75 compositions are demonstrated in this work. They were produced through a simple one-step magnetic-field-induced (MFI) chemical co-reduction of three different mixtures containing a proper amount of Fe2+ and Co2+ ions with aqueous sodium borohydride solution as the reducing agent. The synthesis process was carried out at room temperature without the use of templates, surfactants, complexing agents, and organic solvents. The morphological and structural studies indicated that all as-prepared materials were amorphous, and they were composed of nanoparticles aligned in almost straight chains. Moreover, they revealed the core–shell structures with bimetallic alloy cores containing desired iron-to-cobalt ratios and very thin oxide shells. Furthermore, the obtained nanostructures behaved as ferromagnetic materials. Their magnetic properties were correlated with their structural properties and chemical compositions. It was observed that their saturation magnetization decreased significantly with increasing content of cobalt in the chains, whereas the variation of their coercivity was less pronounced.
- Record ID
- WUT3c4a57811a9043f3a6241bad5daaf111
- Author
- Journal series
- Crystal Growth & Design, ISSN 1528-7483, e-ISSN 1528-7505
- Issue year
- 2020
- Vol
- 20
- No
- 5
- Pages
- 3208-3216
- Publication size in sheets
- 0.50
- Keywords in English
- nanomaterials, magnetic properties, nanostructures, cobalt nanoparticles
- ASJC Classification
- ; ;
- DOI
- DOI:10.1021/acs.cgd.0c00070 Opening in a new tab
- URL
- https://pubs.acs.org/doi/pdf/10.1021/acs.cgd.0c00070 Opening in a new tab
- Language
- (en) English
- File
-
- File: 1
- Krajewski M. (i in.) - Amorphous FexCo1–x wire-like...pdf
-
- Score (nominal)
- 100
- Score source
- journalList
- Score
- = 100.0, 12-05-2022, ArticleFromJournal
- Publication indicators
- = 1; = 4; : 2018 = 1.107; : 2020 (2 years) = 4.076 - 2020 (5 years) =3.924
- Uniform Resource Identifier
- https://repo.pw.edu.pl/info/article/WUT3c4a57811a9043f3a6241bad5daaf111/
- URN
urn:pw-repo:WUT3c4a57811a9043f3a6241bad5daaf111
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or PerishOpening in a new tab system.