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01.10.2022 | Research paper

Solvothermal synthesis of high-performance magnetic cobalt nanowires and bonded anisotropic magnets prepared thereof

verfasst von: Truong Xuan Nguyen, Oanh Kim Thi Vuong, Ngan Thuy Thi Dang, Anh Kha Vuong, Long Viet Nguyen, Hang Nhat Thi Nguyen, Trung Quoc Nguyen, Vuong Van Nguyen

Erschienen in: Journal of Nanoparticle Research | Ausgabe 10/2022

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Abstract

In this research, we report the effects of the solvothermal synthesis including the reaction temperature (T_r), reaction time (t_r), and hexadecylamine concentrations (HDA_c) on the morphology and magnetic properties of Co nanowires (Co NWs). The obtained results reveal the great impact of T_r, t_r, and HDA_c on magnetic properties of Co NWs and magnets prepared thereof. The best magnetic properties were found in the Co NWs of the aspect ratio m between the length L and diameter D, m = L/D ~ 10 synthesized at T_r = 175 °C, t_r = 20 h, and HDA_c = 0.6 mmol with the saturation magnetization (M_s) of 146 emu/g and coercivity (_iH_c) of 4.1 kOe. These Co NWs were used for preparing bonded anisotropic magnet with the mass density ρ = 5.8 g/cm³, M_s = 6.31 kG, M_r = 5.85 kG, _iH_c = 6.76 kOe, _bH_c = 5.18 kOe, and energy product (BH)_max = 7.74 MGOe.

Vorheriger Artikel Fabrication and optical properties of sulfur- and nitrogen-doped graphene quantum dots by the microwave–hydrothermal approach

Nächster Artikel Melting characteristics and strain-based mechanical characterization of single metal nanoparticles

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Titel: Solvothermal synthesis of high-performance magnetic cobalt nanowires and bonded anisotropic magnets prepared thereof
verfasst von: Truong Xuan Nguyen
Oanh Kim Thi Vuong
Ngan Thuy Thi Dang
Anh Kha Vuong
Long Viet Nguyen
Hang Nhat Thi Nguyen
Trung Quoc Nguyen
Vuong Van Nguyen
Publikationsdatum: 01.10.2022
Verlag: Springer Netherlands
Erschienen in: Journal of Nanoparticle Research / Ausgabe 10/2022
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI: https://doi.org/10.1007/s11051-022-05586-1

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