Effect of the Preparation Conditions on the Magnetic Coercivity of CoPt Alloy Nanowires
In this paper, 3 µm length and 200 nm diameter CoPt nanowire arrays (NWs) with different Co contents were prepared by electrodeposition at a controlled potential from an aqueous hexachloroplatinate solution. The synthesis occurred at two different solution pH values (2.5 and 5.5) in an electrochemic...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Magnetochemistry |
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| Online Access: | https://www.mdpi.com/2312-7481/8/12/176 |
| _version_ | 1827637963745394688 |
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| author | Mihai Tibu Nicoleta Lupu Oana-Georgiana Dragos-Pinzaru |
| author_facet | Mihai Tibu Nicoleta Lupu Oana-Georgiana Dragos-Pinzaru |
| author_sort | Mihai Tibu |
| collection | DOAJ |
| description | In this paper, 3 µm length and 200 nm diameter CoPt nanowire arrays (NWs) with different Co contents were prepared by electrodeposition at a controlled potential from an aqueous hexachloroplatinate solution. The synthesis occurred at two different solution pH values (2.5 and 5.5) in an electrochemical bath free of additives, as well as with saccharin as an organic additive. A complete morphological, compositional, structural and magnetic characterization of the as-prepared nanowires has been carried out. The results show that, by controlling the electrodeposition conditions, the Co content of the alloy can be tuned from 16% to 92%. The crystalline structure of the as-deposited compounds can also be controlled, with the obtained data showing that the face-centered cubic (fcc) crystalline structure changes into a hexagonal close-packed (hcp) structure when saccharin is used as an organic additive during the electrodeposition. The changes in the alloy’s composition and crystalline structure strongly influence the magnetic properties of the NW’s arrays. |
| first_indexed | 2024-03-09T16:09:59Z |
| format | Article |
| id | doaj.art-66760dca517f427c80f60c1378ae71a6 |
| institution | Directory Open Access Journal |
| issn | 2312-7481 |
| language | English |
| last_indexed | 2024-03-09T16:09:59Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Magnetochemistry |
| spelling | doaj.art-66760dca517f427c80f60c1378ae71a62023-11-24T16:18:34ZengMDPI AGMagnetochemistry2312-74812022-12-0181217610.3390/magnetochemistry8120176Effect of the Preparation Conditions on the Magnetic Coercivity of CoPt Alloy NanowiresMihai Tibu0Nicoleta Lupu1Oana-Georgiana Dragos-Pinzaru2National Institute of R&D for Technical Physics, 700050 Iasi, RomaniaNational Institute of R&D for Technical Physics, 700050 Iasi, RomaniaNational Institute of R&D for Technical Physics, 700050 Iasi, RomaniaIn this paper, 3 µm length and 200 nm diameter CoPt nanowire arrays (NWs) with different Co contents were prepared by electrodeposition at a controlled potential from an aqueous hexachloroplatinate solution. The synthesis occurred at two different solution pH values (2.5 and 5.5) in an electrochemical bath free of additives, as well as with saccharin as an organic additive. A complete morphological, compositional, structural and magnetic characterization of the as-prepared nanowires has been carried out. The results show that, by controlling the electrodeposition conditions, the Co content of the alloy can be tuned from 16% to 92%. The crystalline structure of the as-deposited compounds can also be controlled, with the obtained data showing that the face-centered cubic (fcc) crystalline structure changes into a hexagonal close-packed (hcp) structure when saccharin is used as an organic additive during the electrodeposition. The changes in the alloy’s composition and crystalline structure strongly influence the magnetic properties of the NW’s arrays.https://www.mdpi.com/2312-7481/8/12/176CoPt nanowireselectrodepositionmagnetic properties |
| spellingShingle | Mihai Tibu Nicoleta Lupu Oana-Georgiana Dragos-Pinzaru Effect of the Preparation Conditions on the Magnetic Coercivity of CoPt Alloy Nanowires Magnetochemistry CoPt nanowires electrodeposition magnetic properties |
| title | Effect of the Preparation Conditions on the Magnetic Coercivity of CoPt Alloy Nanowires |
| title_full | Effect of the Preparation Conditions on the Magnetic Coercivity of CoPt Alloy Nanowires |
| title_fullStr | Effect of the Preparation Conditions on the Magnetic Coercivity of CoPt Alloy Nanowires |
| title_full_unstemmed | Effect of the Preparation Conditions on the Magnetic Coercivity of CoPt Alloy Nanowires |
| title_short | Effect of the Preparation Conditions on the Magnetic Coercivity of CoPt Alloy Nanowires |
| title_sort | effect of the preparation conditions on the magnetic coercivity of copt alloy nanowires |
| topic | CoPt nanowires electrodeposition magnetic properties |
| url | https://www.mdpi.com/2312-7481/8/12/176 |
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