Published January 10, 2014 | Version v1
Journal article Metadata-only

Electrochemical formation of erbium-aluminum alloys from erbia in the chloride melts

Creators

  • 1. School of Nuclear Science and Technology, University of South China, HengYang 421000 China (China)
  • 2. Key Laboratory of Nuclear Radiation and Nuclear Energy Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China)
  • 3. Division of Radiochemistry, China Institute of Atomic Energy, Beijing 102413 (China)
  • 4. School of Radiological and Interdisciplinary Sciences, Soochow University, Suzhou 215123 (China)

Description

This work presents an electrochemical study of Er3+ and Al3+ in the LiCl-KCl-AlCl3-Er2O3 melts at 773 K. Gibbs energy calculation shows that AlCl3 can favorably chloridize Er2O3 and release Er3+ ions under this condition. Cyclic voltammetry, square wave voltammetry, chronopotentiometry and open-circuit chronopotentiometry were applied using a molybdenum electrode to investigate the reduction behavior of Er3+ and Al3+ and to identify the Er-Al alloys. A series of redox signals corresponding to different kinds of Er-Al alloys were revealed. Potentiostatic and gavanostastic electrolysis were both conducted on an aluminium electrode to prepare the Er-Al alloys. The obtained deposits were charaterized by SEM-EDS and XRD. A layer of ErAl3 was obtained by potentiostatic electrolysis, whereas two kinds of intermetallic compounds of ErAl3 and ErAl2 were formed by galvanostatic electrolysis

Availability note (English)

Available from http://dx.doi.org/10.1016/j.electacta.2013.11.093

Additional details

Identifiers

DOI
10.1016/j.electacta.2013.11.093;
PII
S0013-4686(13)02324-4;

Publishing Information

Journal Title
Electrochimica Acta
Journal Volume
116
Journal Page Range
p. 434-441
ISSN
0013-4686
CODEN
ELCAAV

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
45059540
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ALUMINIUM; ALUMINIUM ALLOYS; ALUMINIUM CHLORIDES; ALUMINIUM IONS; DEPOSITS; ELECTRODEPOSITION; ERBIUM; ERBIUM IONS; ERBIUM OXIDES; INTERMETALLIC COMPOUNDS; LAYERS; LITHIUM CHLORIDES; MOLTEN SALTS; MOLYBDENUM; POTASSIUM CHLORIDES; SCANNING ELECTRON MICROSCOPY; VOLTAMETRY; X-RAY DIFFRACTION
Descriptors DEC
ALKALI METAL COMPOUNDS; ALLOYS; ALUMINIUM COMPOUNDS; ALUMINIUM HALIDES; CHALCOGENIDES; CHARGED PARTICLES; CHLORIDES; CHLORINE COMPOUNDS; COHERENT SCATTERING; DEPOSITION; DIFFRACTION; ELECTROLYSIS; ELECTRON MICROSCOPY; ELEMENTS; ERBIUM COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; IONS; LITHIUM COMPOUNDS; LITHIUM HALIDES; LYSIS; METALS; MICROSCOPY; OXIDES; OXYGEN COMPOUNDS; POTASSIUM COMPOUNDS; POTASSIUM HALIDES; RARE EARTH COMPOUNDS; RARE EARTHS; REFRACTORY METALS; SALTS; SCATTERING; SURFACE COATING; TRANSITION ELEMENTS

Optional Information

Copyright
Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.