ELECTROCHEMICAL BEHAVIOUR FOR REDUCTION OF Tm~(3+) IN MOLTEN CHLORIDES

Acta Metall Sin

1995, Vol. 31

Issue (22): 445-450 DOI:

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ELECTROCHEMICAL BEHAVIOUR FOR REDUCTION OF Tm~(3+) IN MOLTEN CHLORIDES

YANG Qiqin; (Department of Chemistry; Zhongshan University; Guangzhou 510275) QIU Kairong; LIU Guankun; GUAN Tong(Zhongshan University;Guangzhou 510275)

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YANG Qiqin; (Department of Chemistry; Zhongshan University; Guangzhou 510275) QIU Kairong; LIU Guankun; GUAN Tong(Zhongshan University;Guangzhou 510275). ELECTROCHEMICAL BEHAVIOUR FOR REDUCTION OF Tm~(3+) IN MOLTEN CHLORIDES. Acta Metall Sin, 1995, 31(22): 445-450.

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Abstract The electrode processes of Tm3+ in molten chlorides were investigated by cyclic voltammetry, open circuit potential-time curve after potentiostatic electrolysis and X-ray diffraction. Tm3+ is reduced to Tm2+ at first and then the metallic Tm is deposited on the W and Mo electrode respectively. The Tm-Ni alloys are formed at first and then the metallic Tm is deposited on Ni electrode. The diffusion coefficient and diffusion activation energy of Tm3+ in molten chlorides were determined. InD=-4.35-58.2x10~3 /RT is obtained.

Key words: electroreduction of Tm~(3+) molten chlorides electrode process diffusion coefficient Tm-Ni alloy

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1995/V31/I22/445

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