Chemical evolution of CO2 by electrocatalytic oxidation of vanadium-impregnated coke anode material |
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| Authors: | H Gardner W-C Lu L J Rogers |
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| Affiliation: | (1) CSIRO Division of Mineral Chemistry, PO Box 124, 3207 Port Melbourne, Victoria, Australia;(2) Present address: Institute of Chemical Metallurgy, Academia Sinica, Beijing, China |
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| Abstract: | Baked carbon containing impregnated vanadium may be electrochemically oxidized to CO2 in 1 M H2SO4 at 80–90% current efficiency during prolonged electrolysis (>20 h) at 70°C under an applied potential of 1.0 V versus saturated calomel electrode (SCE). The vanadium is electrocatalytically maintained in the highest oxidation state with an activation energy of 44–80 kJ mol–1 at temperatures up to 80°C. |
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