Cu–Pd Bimetallic Cluster/AC as a Novel Catalyst for the Reduction of Nitrate to Nitrite

Cu–Pd/AC catalysts that are derived from Cu–Pd clusters were shown to possess high activity for the reduction of nitrate to nitrite, but were inactive for the reduction of nitrite. In contrast, the Pd/AC catalyst was inactive for the reduction of nitrate, whereas conventional Cu–Pd/AC afforded various products, including nitrite, nitrogen, and ammonia.