Catalysts for electrochemical conversion of nitrates to ammonia. (IMAGE)

Tokyo Metropolitan University

Catalysts for electrochemical conversion of nitrates to ammonia.

Caption

(top) Proportion of copper (I) in copper oxide and copper (0) in metallic copper particles under different applied voltages. A more negative voltage correlates with the appearance of more Cu-Cu bonds. (lower left) Scanning electron microscopy (SEM) image of copper oxide particles mounted on carbon fiber. (lower mid) Production rate of nitrite and ammonium ions at different voltages, and efficiency of ammonium production. (lower right) SEM image of metallic copper particles on carbon fiber.

Credit

Tokyo Metropolitan University

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