采用循环伏安法、开路计时电位法和方波伏安法,在含4.32×10-4 mol/cm3 CeF3的LiF-NaF-KF熔盐(温度873 K)中研究了Ce3+的阴极电化学行为,结果表明,Ce3+的阴极还原是一个一步电子得失的不可逆过程,主要受扩散控制.在上述熔盐中,以Ni为阴极,采用恒电流密度145 mA/cm2电解12h,所得到的电沉积产物为Ce金属以及铈镍合金Ce2Ni7.
参考文献
[1] | Iizuka M.;Shirai O.;Iwai T.;Arai Y.;Inoue T. .Application of normal pulse voltammetry to on-line monitoring of actinide concentrations in molten salt electrolyte[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2001(1):43-51. |
[2] | Y. Castrillejo;M. R. Bermejo;R. Pardo;A. M. Martinez .Use of electrochemical techniques for the study of solubilization processes of cerium-oxide compounds and recovery of the metal from molten chlorides[J].Journal of Electroanalytical Chemistry: An International Journal Devoted to All Aspects of Electrode Kinetics, Interfacial Structure, Properties of Electrolytes, Colloid and Biological Electrochemistry,2002(2):124-140. |
[3] | Iizuka M.;Kondo N.;Fujita R.;Tanaka H.;Koyama T. .ACTINIDES RECOVERY FROM MOLTEN SALT LIQUID METAL SYSTEM BY ELECTROCHEMICAL METHODS[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,1997(0):183-190. |
[4] | VIRGIL CONSTANTIN,ANA-MARIA POPESCU,MLRCEA OLTEANU.Electrochemical studies on cerium(Ⅲ)in molten fluoride mixtures[J].稀土学报(英文版),2010(03):428-434. |
[5] | Constantin V;Popescu AM;Zuca S .Preliminary studies of the obtaining of solid metallic cerium from fluoride melts[J].Zeitschrift fur Naturforschung, A. A journal of physical sciences,2003(1):57-62. |
[6] | CHANDRA M;VANDARKUZHALI S;GHOSH S et al.Redox behaviour of cerium (Ⅲ) in LiF-CaF2 eutectic melt[J].Electrochimica Acta,2011,58:150-156. |
[7] | Zhenmin Du;Lisha Yang;Gang Ling .Thermodynamic assessment of the Ce-Ni system[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2004(1/2):186-190. |
[8] | H. Konishi;T. Nishikiori;T. Nohira;Y. Ito .Thermodynamic properties of Dy-Ni intermetallic compounds[J].Electrochimica Acta,2003(10):1403-1408. |
[9] | TAXIL P;MAHENC J .Formation of corrosion-resistant layers by electrodeposition of refractory metals or by alloy electrowinning in molten fluorides[J].Journal of Applied Electrochemistry,1987,17(02):261-269. |
[10] | BARD A J;FAULKNER L R.Electrochemical methods:Fundamentals and Applications[M].New York:John Wiley and Sons,Inc,2001 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%