| 摘要 |
The electrochemical reduction of nitrates in aqueous solutions thereof in the presence of amides to gaseous nitrogen (N2) is described. Generally, electrochemical reduction of NO3 proceeds stepwise, from NO3 to N2, and subsequently in several consecutive steps to ammonia (NH3) as a final product. Addition of at least one amide to the solution being electrolyzed suppresses ammonia generation, since suitable amides react with NO2 to generate N2. This permits nitrate reduction to gaseous nitrogen to proceed by electrolysis. Suitable amides include urea, sulfamic acid, formamide, and acetamide.
|
