Work

Electrodeposition of nanocrystalline FeXCo1-X thin films from choline chloride–urea deep eutectic solvents

Year: 2025

Type: article

Abstract: FexCo1-x thin films were electrodeposited from a choline–urea deep eutectic solvent (DES) containing Fe3+ and Co2+ ions under ambient conditions. Anomalous co-deposition was observed, with Fe preferentially depositing over Co. With higher cathodic potential, the film’s morphology shifted from smooth to nodular. X-ray diffraction (XRD) analysis showed iron oxide impurities at lower overpotential and temperatures (e.g., <−0.9 V at 70 °C), while impurity-free, nanocrystalline Co50Fe50 films had formed at higher temperatures (e.g., 130 °C). The films exhibited a body-centered cubic (BCC) structure with (110) preferred orientation and grain sizes of 30 nm–40 nm.

Source: Frontiers in Chemistry

DOI: 10.3389/fchem.2025.1635084

Authors: Tingjun Wu, Jiwon Kim, Yong-Ho Choa, Nosang V. Myung

Institutions: Xiamen Institute of Rare-earth Materials, Institute for Advanced Engineering, Hanyang University, University of Notre Dame

Language: English

Topic: Electrodeposition and Electroless Coatings

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $3,801

Funder: Ministry of Trade, Industry and Energy