Minimising carbon transfer in an electrolytic cell

Details Minimising carbon transfer in an electrolytic cell Minimising carbon transfer in an electrolytic cell

C - Chemistry, Metallurgy

25

C

C25C 5/00 (2006.01) C22B 9/14 (2006.01) C22B 34/12 (2006.01) C25C 7/00 (2006.01)

Patent

CA 2479050

An electrolytic cell for reducing a metal oxide, such as titania, in a solid state is disclosed. The electrolytic cell includes an anode formed from carbon and a cathode formed at least in part from the metal oxide. The electrolytic cell also includes a membrane that is permeable to oxygen anions and is impermeable to carbon in ionic and non-ionic forms positioned between the cathode and the anode to thereby prevent migration of carbon to the cathode.

L'invention concerne une cellule électrolytique permettant de réduire un oxyde métallique, tel que le dioxyde de titane, à l'état solide. La cellule électrolytique comprend une anode formée à partir d'un carbone et une cathode formée au moins partiellement à partir de l'oxyde métallique. La cellule électrolytique comprend également une membrane perméable à des anions d'oxygène et imperméable au carbone dans des formes ionique et non ionique et positionnée entre la cathode et l'anode, empêchant ainsi une migration du carbone dans la cathode.

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