引用本文:
刘冠昆, 童叶翔, 洪惠婵, 杨绮琴, 陈胜阳. 氯化物熔体中镱离子在铁电极上的电还原[J]. 物理化学学报,
1998, 14(05): 463-466.
doi:
10.3866/PKU.WHXB19980516
Citation: Liu Guan-Kun, Tong Ye-Xiang, Hong Hui-Chan, Yang Qi-Qin, Chen Sheng-Yang. Electroreduction of Yb(III) Ion on the Fe Cathode in Molten Chloride[J]. Acta Physico-Chimica Sinica, 1998, 14(05): 463-466. doi: 10.3866/PKU.WHXB19980516
Citation: Liu Guan-Kun, Tong Ye-Xiang, Hong Hui-Chan, Yang Qi-Qin, Chen Sheng-Yang. Electroreduction of Yb(III) Ion on the Fe Cathode in Molten Chloride[J]. Acta Physico-Chimica Sinica, 1998, 14(05): 463-466. doi: 10.3866/PKU.WHXB19980516
English
Electroreduction of Yb(III) Ion on the Fe Cathode in Molten Chloride
Abstract:
The line scanning voltammetry was used to study the electrochemical reaction of Yb(Ⅲ) in NaCl-KCl equimolar mixture on the Fe cathode. It was found that the reduction of Yb(Ⅲ) to yb(Ⅱ ) was realized on Fe electrode in the first step. Yb(Ⅱ ) was then reduced and formed alloys with Fe. The diffusion coefficients of Yb(Ⅲ) and Yb(Ⅱ ) in NaCl-KCl were determined to be 2.0× 10-5cm2. s- 1 and l .1 × 10-5cm2's- 1 at 760 ℃, respectively. The diffusion activation energy of Yb(Ⅲ ) was 66.0kJ•mol-1.
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Key words:
-
Yb(III) ion
- / Electroreduction
- / Molten salt
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