NDLI: Direct electrochemical reduction of Dy$_{2}$O$_{3}$ in CaCl$

Content Provider	Springer Nature Link
Author	Kim, Pyonghun Xie, Hongwei Zhai, Yuchun Zou, Xiangyu Lang, Xiaochuan
Copyright Year	2012
Abstract	The electrochemical reduction of Dy$_{2}$O$_{3}$ in CaCl$_{2}$ melt was studied. The cyclic voltammetry, chronoamperometry, AC impedance and constant voltage electrolysis were employed. A single cathodic current peak in the cyclic voltammogram and one response semicircle in the AC impedance spectrum were observed, supporting a one-step electrochemical reduction mechanism of Dy$_{2}$O$_{3}$. No intermediates were observed by XRD, which confirmed the following electrochemical reduction sequence: Dy$_{2}$O$_{3}$ → Dy. The charge transfer resistances and the activation energies involved in the electrochemical reduction step of Dy$_{2}$O$_{3}$ were obtained by simulating the AC impedance spectra with equivalent circuits. The electrochemical reduction reaction of Dy$_{2}$O$_{3}$ is controlled by the charge transfer process at a low voltage range and by the diffusion process at a high voltage range.
Starting Page	257
Ending Page	262
Page Count	6
File Format	PDF
ISSN	0021891X
Journal	Journal of Applied Electrochemistry
Volume Number	42
Issue Number	4
e-ISSN	15728838
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-02-19
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Electrochemical reduction Dy$_{2}$O$_{3}$ Molten salt Metals and alloys Metallurgy Electrochemistry Physical Chemistry Industrial Chemistry/Chemical Engineering
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Chemical Engineering Electrochemistry

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