Graphene Oxide Reinforced Magnetic FeCoNiCuZn High Entropy Alloy through Electrodeposition

Pavithra, Chokkakula L. P. and Janardhana, Reddy Kunda Siri Kiran and Reddy, Kolan Madhav and Murapaka, Chandrasekhar and Klement, Uta and Dey, Suhash Ranjan (2022) Graphene Oxide Reinforced Magnetic FeCoNiCuZn High Entropy Alloy through Electrodeposition. Journal of The Electrochemical Society, 169 (2). 022501. ISSN 0013-4651

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The production of high entropy alloy-based nanocomposites is an exciting yet challenging area in terms of its scalability and industrial applications. Here we developed graphene oxide (GO) reinforced FeCoNiCuZn high entropy alloy (HEA) nanocomposites through an electrochemical approach using aqueous medium in a single step. Transmission electron microscopy observations confirmed uniformly distributed nanocrystalline dual FCC phase quinary alloy nanoparticles throughout the GO layers. On the other hand, the presence of GO affects the electrochemical reduction of multiple elements during alloy formation in the deposition process, which often leads to dual phases with slight deviations in alloy composition, unlike the pure metal-GO composites. Additionally, incorporation of GO has not shown any effect on the ferromagnetic nature of FeCoNiCuZn HEA with saturation magnetization (Ms) ? 43.5 emu g?1. The obtained saturation magnetization is relatively higher compared to the existing reported magnetic nanoparticles with GO. Hence, this technique shows its potential applicability and provides an old technique yet a new approach for synthesizing GO-HEA nanocomposites for various magnetic applications. © 2022 The Electrochemical Society ("ECS"). Published on behalf of ECS by IOP Publishing Limited.

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IITH Creators:
IITH CreatorsORCiD
Murapaka, Chandrasekhar
Dey, Suhash Ranjan
Item Type: Article
Additional Information: The work is supported by the Indo-Sweden joint project (DST/INT/SWD/VR/P-17/2019), Department of Science &Technology (DST), Govt. of INDIA, and the Indo-Sweden Joint Network Grant 2018 from the Swedish Research Council (2018-07086). Authors would like to acknowledge, DST-FIST supported FEGSEM (SR/FST/ETI-421/2016) facility at MSME, IIT Hyderabad. The authors would like to thank Dr. Himalay, DMRL Hyderabad for the assistance with VSM measurements.
Uncontrolled Keywords: Alloy nanoparticle; Aqueous media; Electrochemical reductions; Electrochemicals; FCC phase; Graphene oxides; High entropy alloys; Nanocrystallines; Single-step; Transmission electron microscopy observation
Subjects: Others > Metallurgy Metallurgical Engineering
Materials Engineering > Materials engineering
Divisions: Department of Material Science Engineering
Depositing User: . LibTrainee 2021
Date Deposited: 25 Jul 2022 04:20
Last Modified: 25 Jul 2022 04:20
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