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Direct electroreduction of oxides in molten fluoride salts

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Academic year: 2021

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Figure

Fig. 1. (a) Schematic representation of the FFC Cambridge process and (b) picture of metallic oxide sample.
Fig. 2. Linear sweep voltammograms on Mo (S = 0.31 cm 2 ) and TiO 2 at 5 mV s −1 in LiF–CaF 2 –Li 2 O (1 mass.%) at T = 850 ◦ C.
Fig. 5. Micrographs cross section of Fe 3 O 4 sample after electrolysis. Experimental conditions: LiF–NaF–Li 2 O (1 mass.%), T = 750 ◦ C; (a) I = −0.04 A, t = 20,000 s; (b) I = −0.1 A, t = 10,000 s.
Fig. 6. (a) Micrograph cross section of SnO 2 after electrolysis in LiF–NaF–Li 2 O (1 mass.%) and (b) picture of Sn balls found in the bottom of the crucible.

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