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Electroreduction of Gd3+ on W and Zn Electrodes in LiCl-KCl Eutectic: A Comparison Study
Zhou W(周文); Liu YL(刘雅兰); Liu K(刘奎); Yuan LY(袁立永); Wang L(王璐); Feng YX(冯一潇); Chai ZF(柴之芳); Shi WQ(石伟群); Zhou, W; Liu, YL; Liu, K; Liu, ZR; Yuan, LY; Wang, L; Feng, YX; Chai, ZF; Shi, WQ
2015
Source PublicationJOURNAL OF THE ELECTROCHEMICAL SOCIETY
ISSN0013-4651
EISSN1945-7111
Volume162Issue:10Pages:D531-D539
Corresponding Author石伟群
SubtypeArticle
AbstractThis work presents a comparative study of electrochemical properties of Gd3+ on W and Zn electrodes in LiCl-KCl eutectic. It was found that Gd3+ reduction on a tungsten cathode occurs in a single step pattern. Relevant kinetic properties of the Gd3+/Gd redox reaction were investigated by cyclic voltammetry (CV). The reduction of Gd3+ at a liquid zinc electrode in LiCl-KCl-GdCl3 melt and a film zinc electrode in LiCl-KCl-GdCl3-ZnCl2 eutectic were also studied at 773 K. The diffusion coefficient of Gd3+ at the liquid zinc electrode was calculated to be 5.44 x10(-5) cm(2)s(-1) in LiCl-KCl-GdCl3 melt. The standard rate constants for the charge transfer of Gd3+ at the liquid zinc electrode or on the tungsten electrode was calculated to be about 1 x10(-2) cms(-1) at 773 K by Nicholson method, revealing the redox reaction of Gd3+ to Gd is quasi-reversible based on the Matsuda-Ayabe criteria for practical concept of electrochemical reversibility. Electrodeposition of Gd3+ was carried out on both the film zinc electrode and the liquid zinc electrode. X-ray diffraction (XRD) results showed that intermetallic compounds GdZn12, Gd2Zn17, Gd13Zn58 and GdZn were obtained on the film zinc electrode, whilst intermetallic compound GdZn12 was gained at the liquid zinc electrode. The morphological properties of all the intermetallic compounds were characterized by scanning electron microscopy (SEM) coupled with energy dispersive spectrometry (EDS). (c) 2015 The Electrochemical Society. All rights reserved.
Subject AreaElectrochemistry; Materials Science
DOI10.1149/2.0541510jes
Indexed BySCI ; EI ; CA
Language英语
WOS Research AreaElectrochemistry ; Materials Science, Coatings & Films
WOS SubjectElectrochemistry ; Materials Science
WOS IDWOS:000361501800066
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Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/228733
Collection院士
多学科研究中心
Recommended Citation
GB/T 7714
Zhou W,Liu YL,Liu K,et al. Electroreduction of Gd3+ on W and Zn Electrodes in LiCl-KCl Eutectic: A Comparison Study[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY,2015,162(10):D531-D539.
APA 周文.,刘雅兰.,刘奎.,袁立永.,王璐.,...&Shi, WQ.(2015).Electroreduction of Gd3+ on W and Zn Electrodes in LiCl-KCl Eutectic: A Comparison Study.JOURNAL OF THE ELECTROCHEMICAL SOCIETY,162(10),D531-D539.
MLA 周文,et al."Electroreduction of Gd3+ on W and Zn Electrodes in LiCl-KCl Eutectic: A Comparison Study".JOURNAL OF THE ELECTROCHEMICAL SOCIETY 162.10(2015):D531-D539.
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