Electrochemical Preparation of Ce-Mg-Ni Alloy Film in Acetamide-Urea-NaBr Melting System

Abstract:

Ni(Ⅱ) was reduced to Ni atom irreversibly by a one-step reaction in acetamide-urea-NaBr melt at 353K. The electron-transfer coefficient, and the diffusion coefficient, D₀ were determined to be 0.21 and 1.15×10^-8 cm².s^-1 on Pt electrode. Although the Ce（Ⅲ）and the Mg（Ⅱ）cannot be reduced to Ce and Mg alone, they can be inductively codeposited with Ni（Ⅱ）to obtain an amorphous Ce-Mg-Ni alloy film by potentiostatic electrolysis. The content of Ce in the alloy increase with the increasing of the molar ratio of Ce（Ⅲ）/Ni（Ⅱ） and reaches to the maximum of 49.70 wt%. The content of Mg in the alloy increase with the increasing of the cathode potential and the maximum was 4.558wt%.

• Periodical: Advanced Materials Research (Volumes 311-313)
• Pages: 798-804
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.311-313.798
• Online since: August 2011
• Authors: Cheng Yu Guo, Jian Chao Wang, Bi Qing Chen, Shu Hai Wang, Mei Feng Yun
• Keywords: Acetamide-Urea-Nabr Molten Salt Electrolyte, Amorphous Alloy, Ce-Mg-Ni Alloy Film, Electro-Deposition (ED), Inductive Co-Deposition, Rare Earth Element (REE)

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